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A mixture of helium, nitrogen, and oxygen has a total pressure of 759 mmHg . The...

A mixture of helium, nitrogen, and oxygen has a total pressure of 759 mmHg . The partial pressures of helium and nitrogen are 233 mmHg and 200 mmHg , respectively.

1. What is the partial pressure of oxygen in the mixture? PO2 = ______ mmHg

2. What volume of O2 at 988 mmHg and 21 ∘C is required to synthesize 19.0 mol of NO?

Express your answer to three significant figures and include the appropriate units. volume of O2 =

3. What volume of Cl2 gas, measured at 686 torr and 37 ∘C, is required to form 24 g of NaCl?

Express your answer using two significant figures. VCl2 = ____ L

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