Solution-Calculate the number of moles of gaseous nitrogen

Calculate the number of moles of gaseous nitrogen

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Reference no: EM132413056

1. Bromine can be obtained from the decomposition of calcium bromide by means of electrolysis. If 10.0 g of calcium bromide are dissolved in water before electrolysis and if 1.75 L of gaseous bromine is produced at 70 °C and 80 kPa, what is the theoretical yield percentage?

CaBr₂ à Ca + Br₂

2. Calculate the number of moles of gaseous nitrogen contained in a sample of 227 mL of gas saturated with water vapour at 20 °C and 90.0 kPa.

Hint: Find the volume of pure hydrogen then convert this volume to NTP conditions and find the number of moles. (The change in pressure applies to the pressure exerted on the gas; it'll vary between 90 kPa and 101.3 kPa even if the partial pressure of the nitrogen is less than 90 kPa.)

3. Calculate the pressure exerted by the oxygen only.

Note: When a gas collects at the surface of the water, assume it is saturated with water vapour

4. What's the volume of pure hydrogen present in a sample of 55.0 mL of gas saturated with water vapour at 27 °C, if the total pressure is 104.8 kPa?

Reference no: EM132413056

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Calculate the number of moles of gaseous nitrogen

Reference no: EM132413056

Reference no: EM132413056

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