General Chemistry Answers

solution of sugar water can be defined as a ?

If 25 g of iron (II) chloride reacts with 48 g of sodium phosphate, what is the limiting reagent? How much sodium chloride and iron (II) phosphate can be formed

A mixture of 0.100 mol of NO,

0.050 mol of H2 and 0.10 mol

of H2O

is placed in a 1.0-L vessel at 300 K. The following equilibrium is established: 2 NO(g) + 2 H2(g)

N2(g) + 2 H2O(g). At

equilibrium [NO]

= 0.062 M. Calculate the

equilibrium concentrations of

H2, N2 and

H2O and Kc.

3. If 70 mL of 0.01M HCL is added to 150 mL of 0.1M acetic acid, pH 5.0, what is the resulting pH? Identify the appropriate acid and conjugate base and determine their concentrations in the final solution. 

What volume of water should be added to 3.23g of copper (II) chloride (CuCl2) to form a 0.100 mol dm-3 solution?

A confined of gas at 10 has a pressure of 2.5 atm. What is its new pressure if the temperature is increased to 60?

c. Acid rain i₄s partly caused by sulfur dioxide combined with oxygen gas and water, producing sulfuric acid.

SO₂ (g) + O₂ (g) + H₂O (1) --------- H₂SO₄, (aq).

1. What mass of H₂SO₄ is produced if 100 L of SO₂, reacts with oxygen and water at STP?

2. What volume of O₂ at STP is needed to react with 200 g of SO₂?

b. How many liters of oxygen, at standard conditions, can be obtained from the 100 g potassium chlorate?

2KCIO₃, (s) ---------- 2KCI (s) + 3O₂; (g)

a. The decomposition of calcium carbonate by heating produces calcium oxide and carbon dioxide which evolve as a gas.

1. Write a balanced chemical equation for the reaction.

2. How many liters of carbon dioxide are evolved at STP from the decomposition of 250 g calcium carbonate?

c. What volume of hydrogen will combine with 12 L of chlorine to form hydrogen chloride?

What volume of hydrogen chloride will be formed?