When a certain acid and a certain base are mixed together, a reaction occurs that produces a gas as one of the products. The gas has a density of 1.83 g/L at 1.00 atm and 20°C. What is the molar mass and identity of the gas?

Question

Quizplus · Accepted Answer

The density of a gas is given by the formula:$$Density = (MolarMass * Pressure) / (RT)$$where:- Density is in g/L- MolarMass is in g/mol- Pressure is in atm- R is the ideal gas constant (0.0821 L atm / (mol K))- T is the temperature in KWe can rearrange this formula to solve for MolarMass:$$MolarMass = (Density * RT) / Pressure$$Plugging in the given values, we get:$$MolarMass = (1.83 g/L * 0.0821 L atm / (mol K) * (20 + 273) K) / 1.00 atm = 44 g/mol$$Therefore, the molar mass of the gas is 44 g/mol, which corresponds to CO2.

When a Certain Acid and a Certain Base Are Mixed