What is the actual yield of carbon dioxide gas, if 2.0 g of sodium carbonate reacts with 5.0 g sulfuric acid, to form carbon dioxide gas with a 60.2% yield?

0.64 g.

Explanation:

Na2CO3  + H2SO4 --->  Na2SO4 + CO2 + H2O

82.99 g of Na2CO3 reacts with 98.07 g of H2SO4 to give 44 g of CO2

So 2 g of Na2CO3  gives a theoretical yield of  (44 / 82.99) * 2 = 1.06g CO2

If the yield is 60.2% the actual yield is 1.06 * 0.602

= 0.64 g.

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.