Inorganic Chemistry Answers

Na₂CO₃ (aq) + CaCl₂ (aq) = 2 NaCl(aq) + CaCO₃ (s)

Calculate the volume (in mL) of 0.100 M CaCl₂ needed to produce 1.00 g of CaCO₃ (s)

there is an excess of Na₂CO_3.

Molar mass of calcium carbonate = 100.09 g/mol

Consider the following reaction:

Mg(s) + 2 HC1(aq)= MgC1₂(aq) + H_{2 (g)}

The total pressure of gas collected over water is 785.0 mmHg and the temperature is 25.0^•C. What is the pressure of hydrogen gas formed in mmHg?

You add 10.0 grams of solid copper(II) phosphate, Cu31PO422,

to a beaker and then add 100.0 mL of water to the beaker at

T = 298 K. The solid does not appear to dissolve. You wait

a long time, with occasional stirring and eventually measure

the equilibrium concentration of Cu2 + 1aq2 in the water to be

5.01 * 10-8 M. What is the Ksp of copper(II) phosphate?

(a) 5.01 * 10-8 (b) 2.50 * 10-15

 (c) 4.20 * 10-15

(d) 3.16 * 10-37

 (e) 1.40 * 10-37

What's the purpose of oxalic acid in preparation of potassium trioxalatochromate?

If Homer Simpson cloned himself and all of his clones had his exact same DNA, we can conclude that

a mixture of two isotopes 107 ag with a mass of 106.9041 and 109 ag with a mass of 108.9047 the average atomic wegith of silver is 107.868 what are the relative abudances expressed as precents of these two silver isotopes ?

A 2.30 mil sample of carbon monoxide is mixed with hydrogen in a 1:2 mol ratio and allowed to reach equilibrium in a sealed flask at temperature T. At equilibrium the mixture contains 0.120mol CO.

the total pressure is 1.04 times 10^4 kPa.

calculate the partial pressure of hydrogen

Fe2O3 + 3C = 2Fe + 3CO, 25.0 Mol Fe2O3, how many iron can be produced

NH3 + H₂O HNO₃ + NO

How many grams of nitrogen id required in this reaction to produce 5 grams of HNO₃

how many grams of nitrogen dioxide is required in this reaction to produce 5. grams of HNO3