Chemistry Answers

How much of substance B is needed to react with the given amount of A?

A B

40.00 ml 0.5000 N H2SO4 ______ mg MgO

106.0 mg Na2CO3 ______ ml 0.1000 N HCl for complete

neutralization

30.00 ml 0.2000 M H2SO4 ______ ml 0.2000 N NaOH

25.00 ml 0.1500 N KOH ______ mg benzoic acid

204.2 mg potassium acid phthalate ______ ml 0.04000 N KOH

4 meq H2SO4 ______ ml 0.1200 N Ba(OH)2

0.5000 g 85% H3PO4 solution ______ ml 0.1200 N NaOH if reaction is

H3PO4 + OH- = H2PO4- + H2O

1. A solution contains 20.5 g of sodium chloride dissolved in sufficient water to give a total mass of 166.2 g. What is the molality of the solution?

Hess's law energy cycle

24) What volume of 0.1500N reagent is needed for the preparation of 500.00 ml 0.100 N solution? (Note that in this problem it is not necessary to know what the reagent is. Since the normality is given, the computation does not in any way depend on whether the solution contains an acid, base, or salt)

sodium aluminum carbonate down to produce solid aluminum oxide and carbon dioxide gas

For each of the following compounds, draw its isomeric pair that represents a chain, positional and functional group isomerism:

a) CH3CH2CH=CH3

b) CH3CH(CH3)CH(CH3)CH3

c) CH3CH2CH2CH2CH2OH

d) CH3CH2COOH

e) CH2CH2CHO

If 10 moles of sodium phophate react with an excess of calcium chloride, how many moles of sodium chloride can you expact to form?

What is the maximum possible mass of lead(II) iodide precipitate that could form from the reaction of 250 mL of 0.25 M lead(II) nitrate mixed with 300 mL of 0.35 M potassium iodide?

What is the molar concentration of a solution that has 5.00g of ammonium chloride dissolved in 250.0mL of solution 

What is the new volume of a 300L sample of CO2g when pressure doubles