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Application of ideal gas equation, mole and mass calculation.

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6. In the reaction of copper with concentrated nitric acid, the products are copper (II) nitrate, water and nitrogen monoxide, sometimes called nitric oxide. If 150 ml of nitric oxide were collected over mercury at 42C and under a pressure of 74.5 cm of mercury, how many grams of copper had reacted?

7. If all the nitric oxide from above problem was allowed to react with oxygen, a red-brow gas, nitrogen dioxide is formed. How many grams of nitrogen dioxide would be formed?

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2NO(g) + O2(g) → 2NO2(g)
2 moles NO ...

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An application of ideal gas equations, mole and mass calculations are determined.

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Problem involving the application of ideal gas law

Mole and Mass relationship in chemical equation:
1. What mass of ammonia, in grams, can be made from 440g of H2?

N2+3H2-2NH3

The combined Gas Law:
1.If the gas present in 4.65L at STP is changed to a temperature of 15C and pressure of 756mmHg, what will be new volume?

The Ideal Gas Law:
1. Calculate the volume, in liters, of 1.12mol of H2S(g) at 62C and 1.38atm.

2. Calculate the pressure, in atmospheres, of 4.46mol of CO(g) in a 3.96-L tank at 29C.

3. How many moles of Kr(g) are there in 2.22L of the gas at 698mmHg and 45C?

How it can be calculated?

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