General Chemistry Answers

the percentage of oxygen in(

N

H

4

)

2

S

O

4

(NH4)2SO4

1. What volume of 0.596 M HCI is required to neutralise 30.0 ml of 0.809 M sodium Hydroxide?

2. Nitric acid, HNO3 is extensively used in the manufacture of fertilizer. A bottle containing 75.0 mL of nitric acid solution is labeled 6.0 M HNO3.

a. How many miles of HNO3 are in the bottle?

b. A reaction needs 5.00g of HNO3. How many mL of solution are required?

c. 10 mL of water are added to the solution. What is the molarity of the resulting solution?

25.0 ml of 0.350 M NaOH are added to 45.0ml of 0.125m Copper (II) Sulfate. How many grams of copper (II) Hydroxide will precipitate?

What is ion

Common laboratory preparation of oxygen gas is the thermal decomposition of potassium chlorate (KClO3). Assuming complete decomposition, calculate the number of grams of O2 gas that can be obtained from 46.0 g of KClO3. (The products are KCl and O2)

state two commercial uses of oxygen

A point charge has a charge of 2.50 X 10-11 C. At what distance from the point

charge is the electric potential a) 90.0 V? b) 30.0 V? Take the potential to be

zero at an infinite distance from the charge.

Note: Show your free body diagram (FBD) and solutions accurately,

systematically and orderly with the standard unit, and express it into

prefix word if possible.

How many grams of silver chromate will form when 120 mL of 0.500 M silver nitrate are added to potassium chromate?

2 AgNO3(aq)   +   K2CrO4(aq)   ?   Ag2CrO4(s)   +   2 KNO3(aq)

How many grams of FeCl₃ are present in 15.00 mL of the solution? (Molar mass of FeCl₃ = 162.2 g/mol)

which of the IMF correctly identifies all the interactions that might affect the properties of BrI