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What will be the molarity of a compound (1 litre) with a molecular weight of 169 and purity as 41%.
10M NaF solution is slowly added with stirring, to a solution that contains 10M Ca(NO3)2 and 10M Cr(NO3)3 .Which salt CaF2 - or - CrF3 precipitates first? The Ksp for CaF2 = 5.3x10^-9 & Ksp for CrF3 = 6.6x10^-11
A gas is compressed from an initial volume of 5.40 to a final volume of 1.20 by an external pressure of 1.00 . During the compression the gas releases 126 of heat.
Phosgene (COCl2) is a toxic substance that forms readily from carbon monoxide and chlorine at elevated temperatures: CO (g)+ Cl2 (g) ? COCl2 (g).
find the molarity when 7.85 moles aluminum chloride are dissolved in enough water to make a total of 600. mL
Find the mass of sodium required to produce 5.68 L of hydrogen gas at STP from the reaction described by the following equation: 2 Na + 2 H2O ® 2 NaOH + H2
what is the minimum amount of KCN (in g) needed to react with 15.6 g of gold?
A solution is prepared by dissolving 159 g of sucrose (C12H22O11) in 624 g of water. What is the vapor pressure of this solution at 30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)
Calculate the solubility of zinc hydroxide, Zn(OH)2, in 1.00 M NaOH. Ksp = 3.0 × 10-16 for Zn(OH)2, Kf = 3.0 × 1015 for Zn(OH)42-
A 25.0-mL sample of 1.00 M NH3 is titrated with 0.15 M HCl. What is the pH of the solution after 15.00 mL of acid have been added to the ammonia solution? Kb = 1.8 × 10¯5
Draw the structures of the compounds listed below in groups of isomers and classify them according to their unique functional groups and number of carbons atoms
The temperature of 1.5 kg of ethanol is 37°C. What will the final temperature be if 80,000 J of energy as heat is added to the ethanol.
What is the mass of sugar in 735g of a 19.85% sugar solution?
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