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What Is the Volume of 0.05 Mol of Neon Gas at STP?

At STP (Standard Temperature and Pressure), the volume of a gas can be calculated using the ideal gas law equation: PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature in Kelvin.

Given that we have 0.05 mol of neon gas, we can determine its volume at STP. At STP, the pressure is 1 atmosphere (atm), the temperature is 273.15 Kelvin (K), and the ideal gas constant is 0.0821 L·atm/mol·K.

Let’s plug in these values into the ideal gas law equation:

PV = nRT

(1 atm) V = (0.05 mol) (0.0821 L·atm/mol·K) (273.15 K)

Simplifying the equation, we have:

V = (0.05 mol) (0.0821 L·atm/mol·K) (273.15 K) / (1 atm)

V = 1.18 L

Therefore, the volume of 0.05 mol of neon gas at STP is approximately 1.18 liters.

FAQs:

1. What is STP?

STP stands for Standard Temperature and Pressure. It is a set of standard conditions used to compare and measure the properties of gases. At STP, the temperature is 273.15 Kelvin (0 degrees Celsius) and the pressure is 1 atmosphere (atm).

2. How is the volume of a gas calculated at STP?

To calculate the volume of a gas at STP, we use the ideal gas law equation: PV = nRT. By plugging in the values of pressure, number of moles, temperature, and the ideal gas constant, we can solve for the volume.

3. What is the ideal gas constant?

The ideal gas constant, denoted by R, is a proportionality constant used in the ideal gas law equation. Its value is approximately 0.0821 L·atm/mol·K. It relates the pressure, volume, number of moles, and temperature of a gas.

4. Can the ideal gas law equation be used for any gas?

The ideal gas law equation is an approximation that is most accurate for gases that behave ideally, meaning they have negligible intermolecular forces and occupy a large volume compared to the size of the molecules. At low pressures and high temperatures, most gases behave ideally.

5. What is the significance of knowing the volume of a gas at STP?

Knowing the volume of a gas at STP is important for various applications in chemistry and physics. It allows scientists to compare the properties of different gases and to determine the amount of gas present in a given sample. Additionally, it is essential for calculations involving stoichiometry, dilution, and gas laws.

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