en stringlengths 4 940 | translation stringlengths 3 34.3k | target_lang stringclasses 11
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|---|---|---|---|---|
The solubility S increases with increase in [H + ] or decrease in pH. | ุชุฒุฏุงุฏ ุงูุฐูุจุงููุฉ S ุจุฒูุงุฏุฉ [H + ] ุฃู ููุตุงู ุงูุฑูู
ุงูููุฏุฑูุฌููู. | ar | technical | moderate |
Equilibrium can be established for both physical and chemical processes. | ูู
ูู ุฅุฑุณุงุก ุงูุชูุงุฒู ููู ู
ู ุงูุนู
ููุงุช ุงูููุฒูุงุฆูุฉ ูุงูููู
ูุงุฆูุฉ. | ar | technical | simple |
The direction of reaction can be predicted by reaction quotient Q c. | ูู
ูู ุงูุชูุจุค ุจุงุชุฌุงู ุงูุชูุงุนู ุนู ุทุฑูู ุญุงุตู ุงูุชูุงุนู Q c. | ar | technical | moderate |
Catalyst does not effect the equilibrium composition of a reaction mixture. | ูุง ูุคุซุฑ ุงูู
ุญูุฒ ุนูู ุชูููู ุฎููุท ุงูุชูุงุนู ูู ุญุงูุฉ ุงูุชูุงุฒู. | ar | technical | moderate |
Acids, bases and salts are electrolytes. | ุงูุฃุญู
ุงุถ ูุงูููุงุนุฏ ูุงูุฃู
ูุงุญ ูู ุฅููุชุฑูููุชุงุช. | ar | technical | simple |
According to Arrhenius, acids give hydrogen ions while bases produce hydroxyl ions. | ููููุง ูุฃุฑููููุณุ ุชุนุทู ุงูุฃุญู
ุงุถ ุฃูููุงุช ุงูููุฏุฑูุฌูู ุจููู
ุง ุชูุชุฌ ุงูููุงุนุฏ ุฃูููุงุช ุงูููุฏุฑููุณูู. | ar | technical | moderate |
Lewis further generalised the definition of an acid as an electron pair acceptor. | ูุงู
ูููุณ ุจุชุนู
ูู
ุชุนุฑูู ุงูุญู
ุถ ุนูู ุฃูู ู
ุณุชูุจู ุฒูุฌ ุฅููุชุฑููู. | ar | technical | complex |
The pH scale for the hydrogen ion concentration has been introduced. | ุชู
ุชูุฏูู
ู
ููุงุณ ุงูุฃุณ ุงูููุฏุฑูุฌููู ูุชุฑููุฒ ุฃููู ุงูููุฏุฑูุฌูู. | ar | technical | simple |
The solubility equilibrium of sparingly soluble salts is discussed. | ุชู
ุช ู
ูุงูุดุฉ ุชูุงุฒู ุงูุฐูุจุงู ููุฃู
ูุงุญ ููููุฉ ุงูุฐูุจุงู. | ar | technical | moderate |
The student may use pH paper in determining the pH of fresh juices. | ูุฏ ูุณุชุฎุฏู
ุงูุทุงูุจ ูุฑู ุงูุฃุณ ุงูููุฏุฑูุฌููู ูู ุชุญุฏูุฏ ุงูุฃุณ ุงูููุฏุฑูุฌููู ููุนุตุงุฆุฑ ุงูุทุงุฒุฌุฉ. | ar | technical | moderate |
What is the initial effect of the change on vapour pressure? | ู
ุง ูู ุงูุชุฃุซูุฑ ุงูุฃููู ููุชุบููุฑ ุนูู ุถุบุท ุงูุจุฎุงุฑุ | ar | technical | moderate |
Write the expression for the equilibrium constant, K c for each of the following reactions: | ุงูุชุจ ุงูุชุนุจูุฑ ุนู ุซุงุจุช ุงูุงุชุฒุงูุ K c ููู ู
ู ุงูุชูุงุนูุงุช ุงูุชุงููุฉ: | ar | technical | complex |
Find out the value of K c for each of the following equilibria from the value of K p : | ุงูุชุดู ููู
ุฉ K c ููู ู
ู ุงูุชูุงุฒูุงุช ุงูุชุงููุฉ ู
ู ููู
ุฉ K p : | ar | technical | complex |
Explain why pure liquids and solids can be ignored while writing the equilibrium constant expression? | ุงุดุฑุญ ูู
ุงุฐุง ูู
ูู ุชุฌุงูู ุงูุณูุงุฆู ูุงูุตูุจุฉ ุงููููุฉ ุนูุฏ ูุชุงุจุฉ ุชุนุจูุฑ ุซุงุจุช ุงูุงุชุฒุงูุ | ar | technical | complex |
Determine the composition of equilibrium mixture. | ุญุฏุฏ ุชูููู ุฎููุท ุงูุงุชุฒุงู. | ar | technical | moderate |
Calculate equilibrium amount of NO and Br 2 . | ุงุญุณุจ ูู
ูุฉ NO ู Br 2 ูู ุญุงูุฉ ุงูุงุชุฒุงู. | ar | technical | moderate |
What is K c at this temperature ? | ู
ุง ูู K c ูู ูุฐู ุงูุฏุฑุฌุฉ ุงูุญุฑุงุฑุฉุ | ar | technical | simple |
Is the reaction mixture at equilibrium? | ูู ุฎููุท ุงูุชูุงุนู ูู ุญุงูุฉ ุงุชุฒุงูุ | ar | technical | simple |
Write the balanced chemical equation corresponding to this expression. | ุงูุชุจ ุงูู
ุนุงุฏูุฉ ุงูููู
ูุงุฆูุฉ ุงูู
ุชูุงุฒูุฉ ุงูุชู ุชุชูุงูู ู
ุน ูุฐุง ุงูุชุนุจูุฑ. | ar | technical | moderate |
Calculate the equilibrium constant for the reaction. | ุงุญุณุจ ุซุงุจุช ุงูุงุชุฒุงู ููุชูุงุนู. | ar | technical | moderate |
The extent of dissociation of an acid depends on the strength and polarity of the H-A bond. | ูุนุชู
ุฏ ู
ุฏู ุชููู ุงูุญู
ุถ ุนูู ููุฉ ููุทุจูุฉ ุงูุฑุงุจุทุฉ H-A. | ar | technical | moderate |
As the size of A increases down the group, H-A bond strength decreases and so the acid strength increases. | ู
ุน ุฒูุงุฏุฉ ุญุฌู
A ูู ุงูู
ุฌู
ูุนุฉุ ุชูู ููุฉ ุงูุฑุงุจุทุฉ H-Aุ ูุจุงูุชุงูู ุชุฒุฏุงุฏ ููุฉ ุงูุญู
ุถ. | ar | technical | moderate |
For example, Size increases HF << HCl << HBr << HI Acid strength increases. | ุนูู ุณุจูู ุงูู
ุซุงูุ ูุฒุฏุงุฏ ุงูุญุฌู
HF << HCl << HBr << HI ุชุฒุฏุงุฏ ููุฉ ุงูุญู
ุถ. | ar | technical | simple |
Similarly, H 2 S is stronger acid than H 2 O. | ูุจุงูู
ุซูุ H 2 S ูู ุญู
ุถ ุฃููู ู
ู H 2 O. | ar | technical | simple |
As the electronegativity of A increases, the strength of the acid also increases. | ู
ุน ุฒูุงุฏุฉ ุงูููุฑุณูุจูุฉ ูู Aุ ุชุฒุฏุงุฏ ููุฉ ุงูุญู
ุถ ุฃูุถูุง. | ar | technical | moderate |
For example, Electronegativity of A increases CH 4 < NH 3 < H 2 O < HF Acid strength increases. | ุนูู ุณุจูู ุงูู
ุซุงูุ ุชุฒุฏุงุฏ ุงูููุฑุณูุจูุฉ ูู A CH 4 < NH 3 < H 2 O < HF ุชุฒุฏุงุฏ ููุฉ ุงูุญู
ุถ. | ar | technical | simple |
Addition of acetate ions to an acetic acid solution results in decreasing the concentration of hydrogen ions, [H + ]. | ุฅุถุงูุฉ ุฃูููุงุช ุงูุฃุณูุชุงุช ุฅูู ู
ุญููู ุญู
ุถ ุงูุฃุณูุชูู ูุคุฏู ุฅูู ุชูููู ุชุฑููุฒ ุฃูููุงุช ุงูููุฏุฑูุฌููุ [H + ]. | ar | technical | moderate |
Also, if H + ions are added from an external source then the equilibrium moves in the direction of undissociated acetic acid. | ุฃูุถูุงุ ุฅุฐุง ุชู
ุช ุฅุถุงูุฉ ุฃูููุงุช H + ู
ู ู
ุตุฏุฑ ุฎุงุฑุฌูุ ูุฅู ุงูุชูุงุฒู ูุชุญุฑู ูู ุงุชุฌุงู ุญู
ุถ ุงูุฃุณูุชูู ุบูุฑ ุงูู
ุชููู. | ar | technical | moderate |
This phenomenon is an example of common ion effect. | ูุฐู ุงูุธุงูุฑุฉ ู
ุซุงู ุนูู ุชุฃุซูุฑ ุงูุฃููู ุงูู
ุดุชุฑู. | ar | technical | simple |
It can be defined as a shift in equilibrium on adding a substance that provides more of an ionic species already present in the dissociation equilibrium. | ูู
ูู ุชุนุฑููู ุนูู ุฃูู ุชุญูู ูู ุงูุชูุงุฒู ุนูุฏ ุฅุถุงูุฉ ู
ุงุฏุฉ ุชููุฑ ุงูู
ุฒูุฏ ู
ู ุงูุฃููุงุน ุงูุฃููููุฉ ุงูู
ูุฌูุฏุฉ ุจุงููุนู ูู ุชูุงุฒู ุงูุชููู. | ar | technical | complex |
In order to evaluate the pH of the solution resulting on addition of 0.05M acetate ion to 0.05M acetic acid solution, we shall consider the acetic acid dissociation equilibrium once again. | ู
ู ุฃุฌู ุชูููู
ุฏุฑุฌุฉ ุงูุญู
ูุถุฉ ููู
ุญููู ุงููุงุชุฌ ุนู ุฅุถุงูุฉ 0.05 ู
ุฃููู ุฃุณูุชุงุช ุฅูู ู
ุญููู ุญู
ุถ ุงูุฃุณูุชูู 0.05 ู
ุ ุณููุธุฑ ู
ุฑุฉ ุฃุฎุฑู ูู ุชูุงุฒู ุชููู ุญู
ุถ ุงูุฃุณูุชูู. | ar | technical | complex |
As K a is small for a very weak acid, x<<0.05. | ูุธุฑูุง ูุฃู K a ุตุบูุฑ ุจุงููุณุจุฉ ููุญู
ุถ ุงูุถุนูู ุฌุฏูุงุ ูุฅู x<<0.05. | ar | technical | simple |
Calculate the pH of a 0.10M ammonia solution. | ุงุญุณุจ ุฏุฑุฌุฉ ุงูุญู
ูุถุฉ ูู
ุญููู ุงูุฃู
ูููุง 0.10 ู
. | ar | technical | simple |
Calculate the pH after 50.0 mL of this solution is treated with 25.0 mL of 0.10M HCl. | ุงุญุณุจ ุฏุฑุฌุฉ ุงูุญู
ูุถุฉ ุจุนุฏ ู
ุนุงูุฌุฉ 50.0 ู
ู ู
ู ูุฐุง ุงูู
ุญููู ุจู 25.0 ู
ู ู
ู ุญู
ุถ ุงูููุฏุฑููููุฑูู 0.10 ู
. | ar | technical | moderate |
The dissociation constant of ammonia, K b = 1.77 ร 10 โ5 | ุซุงุจุช ุชููู ุงูุฃู
ูููุงุ K b = 1.77 ร 10 โ5 | ar | technical | simple |
Before neutralization, [NH 4 + ] = [OH โ ] = x | ูุจู ุงูุชุนุงุฏูุ [NH 4 + ] = [OH โ ] = x | ar | technical | simple |
On addition of 25 mL of 0.1M HCl solution (i.e., 2.5 mmol of HCl) to 50 mL of 0.1M ammonia solution (i.e., 5 mmol of NH 3 ), 2.5 mmol of ammonia molecules are neutralized. | ุนูุฏ ุฅุถุงูุฉ 25 ู
ู ู
ู ู
ุญููู ุญู
ุถ ุงูููุฏุฑููููุฑูู 0.1 ู
(ุฃู 2.5 ู
ููู
ูู ู
ู ุญู
ุถ ุงูููุฏุฑููููุฑูู) ุฅูู 50 ู
ู ู
ู ู
ุญููู ุงูุฃู
ูููุง 0.1 ู
(ุฃู 5 ู
ููู
ูู ู
ู NH 3)ุ ูุชู
ุชุญููุฏ 2.5 ู
ููู
ูู ู
ู ุฌุฒูุฆุงุช ุงูุฃู
ูููุง. | ar | technical | complex |
The resulting 75 mL solution contains the remaining unneutralized 2.5 mmol of NH 3 molecules and 2.5 mmol of NH 4 + . | ูุญุชูู ุงูู
ุญููู ุงููุงุชุฌ 75 ู
ู ุนูู 2.5 ู
ููู
ูู ุงูู
ุชุจููุฉ ุบูุฑ ุงูู
ุชุนุงุฏูุฉ ู
ู ุฌุฒูุฆุงุช NH 3 ู 2.5 ู
ููู
ูู ู
ู NH 4 + . | ar | technical | moderate |
The cations/anions formed on ionization of salts either exist as hydrated ions in aqueous solutions or interact with water to reform corresponding acids/ bases depending upon the nature of salts. | ุชูุฌุฏ ุงููุงุชูููุงุช/ุงูุฃููููุงุช ุงูู
ุชูููุฉ ุนูุฏ ุชุฃูู ุงูุฃู
ูุงุญ ุฅู
ุง ูุฃูููุงุช ู
ุงุฆูุฉ ูู ุงูู
ุญุงููู ุงูู
ุงุฆูุฉ ุฃู ุชุชูุงุนู ู
ุน ุงูู
ุงุก ูุฅุนุงุฏุฉ ุชูููู ุงูุฃุญู
ุงุถ/ุงูููุงุนุฏ ุงูู
ูุงุจูุฉ ุงุนุชู
ุงุฏูุง ุนูู ุทุจูุนุฉ ุงูุฃู
ูุงุญ. | ar | technical | complex |
The pH of the solution gets affected by this interaction. | ุชุชุฃุซุฑ ุฏุฑุฌุฉ ุงูุญู
ูุถุฉ ููู
ุญููู ุจูุฐุง ุงูุชูุงุนู. | ar | technical | simple |
The enthalpy of formation for ethanol is -277.69 kJ/mol. | ุญุฑุงุฑุฉ ุชูููู ุงูุฅูุซุงููู ูู -277.69 ูููู ุฌูู/ู
ูู. | ar | technical | moderate |
Formic acid has a Gibbs energy of formation of -361.35 kJ/mol. | ุญู
ุถ ุงูููุฑู
ูู ูุฏูู ุทุงูุฉ ุบูุจุณ ููุชูููู ุชุจูุบ -361.35 ูููู ุฌูู/ู
ูู. | ar | technical | moderate |
The standard potential for the reduction of fluorine is +2.87 V. | ุงูุฌูุฏ ุงูููุงุณู ูุงุฎุชุฒุงู ุงููููุฑ ูู +2.87 ูููุช. | ar | technical | moderate |
Urea has an enthalpy of formation of -333.51 kJ/mol. | ุงูููุฑูุง ูุฏููุง ุญุฑุงุฑุฉ ุชูููู ุชุจูุบ -333.51 ูููู ุฌูู/ู
ูู. | ar | technical | moderate |
The entropy of sucrose is 360 J K-1 mol-1. | ุฅูุชุฑูุจูุง ุงูุณูุฑูุฒ ูู 360 ุฌูู ูููู-1 ู
ูู-1. | ar | technical | moderate |
The reaction is spontaneous at 2000 K. | ุงูุชูุงุนู ุชููุงุฆู ุนูุฏ 2000 ูููู. | ar | technical | moderate |
The standard potential for the reduction of oxygen is +1.23 V. | ุงูุฌูุฏ ุงูููุงุณู ูุงุฎุชุฒุงู ุงูุฃูุณุฌูู ูู +1.23 ูููุช. | ar | technical | moderate |
The Gibbs energy of formation for glucose is -910 kJ/mol. | ุทุงูุฉ ุบูุจุณ ูุชูููู ุงูุฌููููุฒ ูู -910 ูููู ุฌูู/ู
ูู. | ar | technical | moderate |
The enthalpy of combustion for benzoic acid is -3227 kJ/mol. | ุญุฑุงุฑุฉ ุงุญุชุฑุงู ุญู
ุถ ุงูุจูุฒููู ูู -3227 ูููู ุฌูู/ู
ูู. | ar | technical | moderate |
The standard potential for the reduction of chlorine is +1.36 V. | ุงูุฌูุฏ ุงูููุงุณู ูุงุฎุชุฒุงู ุงููููุฑ ูู +1.36 ูููุช. | ar | technical | moderate |
The standard potential for the reduction of silver is +0.80 V. | ุงูุฌูุฏ ุงูููุงุณู ูุงุฎุชุฒุงู ุงููุถุฉ ูู +0.80 ูููุช. | ar | technical | moderate |
The standard potential for the reduction of iron is -0.44 V. | ุงูุฌูุฏ ุงูููุงุณู ูุงุฎุชุฒุงู ุงูุญุฏูุฏ ูู -0.44 ูููุช. | ar | technical | moderate |
The standard potential for the reduction of zinc is -0.76 V. | ุงูุฌูุฏ ุงูููุงุณู ูุงุฎุชุฒุงู ุงูุฒูู ูู -0.76 ูููุช. | ar | technical | moderate |
The standard potential for the reduction of aluminum is -1.66 V. | ุงูุฌูุฏ ุงูููุงุณู ูุงุฎุชุฒุงู ุงูุฃููู
ูููู
ูู -1.66 ูููุช. | ar | technical | moderate |
The standard potential for the reduction of lithium is -3.05 V. | ุงูุฌูุฏ ุงูููุงุณู ูุงุฎุชุฒุงู ุงูููุซููู
ูู -3.05 ูููุช. | ar | technical | moderate |
The reaction is not spontaneous. | ุงูุชูุงุนู ููุณ ุชููุงุฆููุง. | ar | technical | simple |
The substance is a sugar. | ุงูู
ุงุฏุฉ ุนุจุงุฑุฉ ุนู ุณูุฑ. | ar | technical | simple |
The solution is acidic. | ุงูู
ุญููู ุญู
ุถู. | ar | technical | simple |
The compound is an aldehyde. | ุงูู
ุฑูุจ ุนุจุงุฑุฉ ุนู ุฃูุฏููุฏ. | ar | technical | simple |
The potential is positive. | ุงูุฌูุฏ ู
ูุฌุจ. | ar | technical | simple |
The chemical properties of an element determine its reactivity. | ุชุญุฏุฏ ุงูุฎุตุงุฆุต ุงูููู
ูุงุฆูุฉ ููุนูุตุฑ ู
ุฏู ุชูุงุนูู. | ar | technical | moderate |
Understanding the periodic table is crucial for studying chemistry. | ููู
ุงูุฌุฏูู ุงูุฏูุฑู ุฃู
ุฑ ุจุงูุบ ุงูุฃูู
ูุฉ ูุฏุฑุงุณุฉ ุงูููู
ูุงุก. | ar | technical | moderate |
Acids and bases react to form salts and water. | ุชุชูุงุนู ุงูุฃุญู
ุงุถ ูุงูููุงุนุฏ ูุชูููู ุงูุฃู
ูุงุญ ูุงูู
ุงุก. | ar | technical | simple |
The concept of the mole is fundamental in stoichiometry. | ู
ูููู
ุงูู
ูู ุฃุณุงุณู ูู ุงูููุงุณ ุงููู
ู. | ar | technical | moderate |
This experiment requires careful measurement of reactants. | ุชุชุทูุจ ูุฐู ุงูุชุฌุฑุจุฉ ููุงุณูุง ุฏููููุง ููู
ุชูุงุนูุงุช. | ar | technical | moderate |
The reaction rate increases with temperature. | ูุฒุฏุงุฏ ู
ุนุฏู ุงูุชูุงุนู ู
ุน ุฏุฑุฌุฉ ุงูุญุฑุงุฑุฉ. | ar | technical | simple |
Catalysts speed up chemical reactions. | ุงูู
ุญูุฒุงุช ุชุณุฑุน ุงูุชูุงุนูุงุช ุงูููู
ูุงุฆูุฉ. | ar | technical | simple |
The study of organic chemistry involves carbon compounds. | ุฏุฑุงุณุฉ ุงูููู
ูุงุก ุงูุนุถููุฉ ุชุดู
ู ู
ุฑูุจุงุช ุงููุฑุจูู. | ar | technical | moderate |
Isomers have the same molecular formula but different structures. | ููู
ุชุตุงูุบุงุช ููุณ ุงูุตูุบุฉ ุงูุฌุฒูุฆูุฉ ูููู ููุงูู ู
ุฎุชููุฉ. | ar | technical | moderate |
The properties of gases are described by the gas laws. | ูุชู
ูุตู ุฎุตุงุฆุต ุงูุบุงุฒุงุช ุจููุงููู ุงูุบุงุฒุงุช. | ar | technical | moderate |
The news reported a major breakthrough in cancer research. | ุฃูุงุฏุช ุงูุฃูุจุงุก ุนู ุชูุฏู
ูุจูุฑ ูู ุฃุจุญุงุซ ุงูุณุฑุทุงู. | ar | news | moderate |
She decided to pursue a career in medicine. | ูุฑุฑุช ุฃู ุชู
ุชูู ู
ููุฉ ุงูุทุจ. | ar | general | simple |
The company announced its quarterly earnings. | ุฃุนููุช ุงูุดุฑูุฉ ุนู ุฃุฑุจุงุญูุง ุงููุตููุฉ. | ar | news | simple |
The government is implementing new environmental policies. | ุชููุฐ ุงูุญููู
ุฉ ุณูุงุณุงุช ุจูุฆูุฉ ุฌุฏูุฏุฉ. | ar | news | moderate |
He is a very talented musician. | ุฅูู ู
ูุณููู ู
ูููุจ ุฌุฏูุง. | ar | general | simple |
The weather forecast predicts rain for tomorrow. | ุชุชููุน ุชููุนุงุช ุงูุทูุณ ูุทูู ุงูุฃู
ุทุงุฑ ุบุฏูุง. | ar | general | simple |
The team won the championship after a hard-fought game. | ูุงุฒ ุงููุฑูู ุจุงูุจุทููุฉ ุจุนุฏ ู
ุจุงุฑุงุฉ ุตุนุจุฉ. | ar | news | moderate |
The artist's work was displayed in a prestigious gallery. | ุชู
ุนุฑุถ ุนู
ู ุงูููุงู ูู ู
ุนุฑุถ ู
ุฑู
ูู. | ar | general | moderate |
The conference brought together experts from around the world. | ุฌู
ุน ุงูู
ุคุชู
ุฑ ุฎุจุฑุงุก ู
ู ุฌู
ูุน ุฃูุญุงุก ุงูุนุงูู
. | ar | general | moderate |
The new technology has the potential to revolutionize the industry. | ุงูุชูููููุฌูุง ุงูุฌุฏูุฏุฉ ูุฏููุง ุงููุฏุฑุฉ ุนูู ุฅุญุฏุงุซ ุซูุฑุฉ ูู ุงูุตูุงุนุฉ. | ar | technical | complex |
solution of pyridinium hydrochloride has pH = 3.44. Calculate the ionization constant of pyridine. | ู
ุญููู ููุฏุฑููููุฑูุฏ ุงูุจูุฑูุฏููููู
ูู ุฏุฑุฌุฉ ุญู
ูุถุฉ = 3.44. ุงุญุณุจ ุซุงุจุช ุชุฃูู ุงูุจูุฑูุฏูู. | ar | technical | moderate |
Predict if the solutions of the following salts are neutral, acidic or basic: NaCl, KBr, NaCN, NH 4 NO 3 , NaNO 2 and KF | ุชููุน ู
ุง ุฅุฐุง ูุงูุช ู
ุญุงููู ุงูุฃู
ูุงุญ ุงูุชุงููุฉ ู
ุชุนุงุฏูุฉ ุฃู ุญู
ุถูุฉ ุฃู ุฃุณุงุณูุฉ: ูููุฑูุฏ ุงูุตูุฏููู
ุ ุจุฑูู
ูุฏ ุงูุจูุชุงุณููู
ุ ุณูุงููุฏ ุงูุตูุฏููู
ุ ูุชุฑุงุช ุงูุฃู
ููููู
ุ ููุชุฑูุช ุงูุตูุฏููู
ุ ููููุฑูุฏ ุงูุจูุชุงุณููู
. | ar | technical | moderate |
The ionization constant of chloroacetic acid is 1.35 ร 10 โ3 . What will be the pH of 0.1M acid and its 0.1M sodium salt solution? | ุซุงุจุช ุชุฃูู ุญู
ุถ ุงููููุฑูุงุณูุชูู ูู 1.35 ร 10 โ3 . ู
ุง ูู ุงูุฑูู
ุงูููุฏุฑูุฌููู ููุญู
ุถ 0.1 ู
ูุญู ู
ูุญู ุงูุตูุฏููู
ู 0.1 ู
ุ | ar | technical | complex |
Ionic product of water at 310 K is 2.7 ร 10 โ14 . What is the pH of neutral water at this temperature? | ุญุงุตู ุงูุฃูููุงุช ููู
ุงุก ุนูุฏ 310 ูููู ูู 2.7 ร 10 โ14 . ู
ุง ูู ุงูุฑูู
ุงูููุฏุฑูุฌููู ููู
ุงุก ุงูู
ุชุนุงุฏู ูู ูุฐู ุงูุฏุฑุฌุฉุ | ar | technical | complex |
Calculate the pH of the resultant mixtures: a) 10 mL of 0.2M Ca(OH) 2 + 25 mL of 0.1M HCl | ุงุญุณุจ ุงูุฑูู
ุงูููุฏุฑูุฌููู ููุฎูุงุฆุท ุงููุงุชุฌุฉ: ุฃ) 10 ู
ู ู
ู 0.2 ู
Ca(OH) 2 + 25 ู
ู ู
ู 0.1 ู
ุญู
ุถ ุงูููุฏุฑููููุฑูู | ar | technical | complex |
Determine the solubilities of silver chromate, barium chromate, ferric hydroxide, lead chloride and mercurous iodide at 298K from their solubility product constants given in Table 6.9. | ุญุฏุฏ ุฐูุจุงููุฉ ูุฑูู
ุงุช ุงููุถุฉุ ููุฑูู
ุงุช ุงูุจุงุฑููู
ุ ูููุฏุฑููุณูุฏ ุงูุญุฏูุฏููุ ููููุฑูุฏ ุงูุฑุตุงุตุ ูููุฏูุฏ ุงูุฒุฆุจููุฒ ุนูุฏ 298 ูููู ู
ู ุซูุงุจุช ุญุงุตู ุงูุฅุฐุงุจุฉ ุงูุฎุงุตุฉ ุจูุง ุงูู
ูุถุญุฉ ูู ุงูุฌุฏูู 6.9. | ar | technical | complex |
The solubility product constant of Ag 2 CrO 4 and AgBr are 1.1 ร 10 โ12 and 5.0 ร 10 โ13 respectively. Calculate the ratio of the molarities of their saturated solutions. | ุซุงุจุช ุญุงุตู ุงูุฅุฐุงุจุฉ ูู Ag 2 CrO 4 ู AgBr ูู
ุง 1.1 ร 10 โ12 ู 5.0 ร 10 โ13 ุนูู ุงูุชูุงูู. ุงุญุณุจ ูุณุจุฉ ุงูุชุฑููุฒุงุช ุงูู
ููุงุฑูุฉ ูู
ุญุงููููุง ุงูู
ุดุจุนุฉ. | ar | technical | complex |
Equal volumes of 0.002 M solutions of sodium iodate and cupric chlorate are mixed together. Will it lead to precipitation of copper iodate? | ุชูุฎูุท ุฃุญุฌุงู
ู
ุชุณุงููุฉ ู
ู ู
ุญุงููู ููุฏุงุช ุงูุตูุฏููู
ููููุฑุงุช ุงููุญุงุณูู ุจุชุฑููุฒ 0.002 ู
ู
ุนูุง. ูู ุณูุคุฏู ุฐูู ุฅูู ุชุฑุณูุจ ููุฏุงุช ุงููุญุงุณุ | ar | technical | complex |
The ionization constant of benzoic acid is 6.46 ร 10 โ5 and K sp for silver benzoate is 2.5 ร 10 โ13 . How many times is silver benzoate more soluble in a buffer of pH 3.19 compared to its solubility in pure water? | ุซุงุจุช ุชุฃูู ุญู
ุถ ุงูุจูุฒููู ูู 6.46 ร 10 โ5 ู K sp ูุจูุฒูุงุช ุงููุถุฉ ูู 2.5 ร 10 โ13 . ูู
ู
ุฑุฉ ุชููู ุจูุฒูุงุช ุงููุถุฉ ุฃูุซุฑ ูุงุจููุฉ ููุฐูุจุงู ูู ู
ุญููู ู
ูุธู
ุจุฏุฑุฌุฉ ุญู
ูุถุฉ 3.19 ู
ูุงุฑูุฉ ุจูุงุจููุชูุง ููุฐูุจุงู ูู ุงูู
ุงุก ุงููููุ | ar | technical | complex |
What is the maximum concentration of equimolar solutions of ferrous sulphate and sodium sulphide so that when mixed in equal volumes, there is no precipitation of iron sulphide? | ู
ุง ูู ุงูุญุฏ ุงูุฃูุตู ูุชุฑููุฒ ุงูู
ุญุงููู ุงูู
ุชุณุงููุฉ ุงูู
ููุงุฑูุฉ ููุจุฑูุชุงุช ุงูุญุฏูุฏูุฒ ููุจุฑูุชูุฏ ุงูุตูุฏููู
ุจุญูุซ ูุง ูุญุฏุซ ุชุฑุณูุจ ููุจุฑูุชูุฏ ุงูุญุฏูุฏ ุนูุฏ ุฎูุทูุง ุจุฃุญุฌุงู
ู
ุชุณุงููุฉุ | ar | technical | complex |
What is the minimum volume of water required to dissolve 1g of calcium sulphate at 298 K? | ู
ุง ูู ุงูุญุฏ ุงูุฃุฏูู ูุญุฌู
ุงูู
ุงุก ุงููุงุฒู
ูุฅุฐุงุจุฉ 1 ุฌุฑุงู
ู
ู ูุจุฑูุชุงุช ุงููุงูุณููู
ุนูุฏ 298 ููููุ | ar | technical | moderate |
The concentration of sulphide ion in 0.1M HCl solution saturated with hydrogen sulphide is 1.0 ร 10 โ19 M. | ุชุฑููุฒ ุฃููู ุงููุจุฑูุชูุฏ ูู ู
ุญููู ุญู
ุถ ุงูููุฏุฑููููุฑูู 0.1 ู
ุงูู
ุดุจุน ุจูุจุฑูุชูุฏ ุงูููุฏุฑูุฌูู ูู 1.0 ร 10 โ19 ู
. | ar | technical | moderate |
If 10 mL of this is added to 5 mL of 0.04 M solution of the following: FeSO 4 , MnCl 2 , ZnCl 2 and CdCl 2 . in which of these solutions precipitation will take place? | ุฅุฐุง ุฃูุถูู 10 ู
ู ู
ู ูุฐุง ุฅูู 5 ู
ู ู
ู ู
ุญููู 0.04 ู
ู
ู ุงูู
ูุงุฏ ุงูุชุงููุฉ: FeSO 4 ู MnCl 2 ู ZnCl 2 ู CdCl 2 . ูู ุฃู ู
ู ูุฐู ุงูู
ุญุงููู ุณูุญุฏุซ ุงูุชุฑุณูุจุ | ar | technical | complex |
The metre, symbol m, is the SI unit of length. | ุงูู
ุชุฑุ ุงูุฑู
ุฒ ู
ุ ูู ูุญุฏุฉ ุงูุทูู ูู ุงููุธุงู
ุงูุฏููู ูููุญุฏุงุช. | ar | technical | simple |
The kilogram, symbol kg, is the SI unit of mass. | ุงูููููุบุฑุงู
ุ ุงูุฑู
ุฒ ูุฌู
ุ ูู ูุญุฏุฉ ุงููุชูุฉ ูู ุงููุธุงู
ุงูุฏููู ูููุญุฏุงุช. | ar | technical | simple |
The second, symbol s, is the SI unit of time. | ุงูุซุงููุฉุ ุงูุฑู
ุฒ ุซุ ูู ูุญุฏุฉ ุงูุฒู
ู ูู ุงููุธุงู
ุงูุฏููู ูููุญุฏุงุช. | ar | technical | simple |
The ampere, symbol A, is the SI unit of electric current. | ุงูุฃู
ุจูุฑุ ุงูุฑู
ุฒ ุฃุ ูู ูุญุฏุฉ ุงูุชูุงุฑ ุงูููุฑุจุงุฆู ูู ุงููุธุงู
ุงูุฏููู ูููุญุฏุงุช. | ar | technical | simple |
The Kelvin, symbol K, is the SI unit of thermodynamic temperature. | ุงูููููุ ุงูุฑู
ุฒ ูุ ูู ูุญุฏุฉ ุฏุฑุฌุฉ ุงูุญุฑุงุฑุฉ ุงูุฏููุงู
ูููุฉ ุงูุญุฑุงุฑูุฉ ูู ุงููุธุงู
ุงูุฏููู ูููุญุฏุงุช. | ar | technical | simple |
One mole contains exactly 6.02214076ร10 23 elementary entities. | ูุญุชูู ุงูู
ูู ุงููุงุญุฏ ุนูู ุจุงูุถุจุท 6.02214076ร10 23 ููุงููุง ุฃููููุง. | ar | technical | moderate |
The candela, symbol cd is the SI unit of luminous intensity in a given direction. | ุงูุดู
ุนุฉุ ุงูุฑู
ุฒ cdุ ูู ูุญุฏุฉ ุดุฏุฉ ุงูุฅุถุงุกุฉ ูู ุงุชุฌุงู ู
ุนูู ูู ุงููุธุงู
ุงูุฏููู ูููุญุฏุงุช. | ar | technical | simple |
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