Physical Chemistry Answers

An aqueous solution containing 3.42 grams per woo grams of water had a freezing point depression of 0.186°c.calculate mass of solute

If a solution of nacl contains 12.5 grams per 100 grams of solution and has density of 1.09 grams per cms.express it concentration in molarity, per cent in weight,morality,mole per cent

How to calculate 159 torr of oxygen?

Q1. 100 ml of water sample on titration with N/50 HCl requires 8 mL of acid for phenolphthalein end-point and 9 mL of total acid for methyl-orange end-point. Calculate the type and extent of alkalinity present in water sample.

39.8g of a mixture of potassium chloride,kcl, and potassium trioxochlorate were heated to a constant mass. If the residue weighed 28.9g .what was the percentage mass of the potassium chliride in the mixture? (K39, CL=35.5,O=16) hint KCL is not decomposed on heating. Pls in need the answer

determine the oxidation states of the elements in the compounds listed. none of the oxygen-containing compounds are peroxide’s or superoxides.
a.H2SO4
b.Mg(OH)2
c.P4O6

For the chemical reaction

2HBr(aq)+Ba(OH)2(aq)⟶2H2O(l)+BaBr2(aq)

write the net ionic equation, including the phases.

For the reaction

KClO⟶KCl+12O2

assign oxidation numbers to each element on each side of the equation.