# Quick Answer: How do you calculate moles at STP?

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## How do you find the number of moles at STP?

To go from grams to moles, divide the grams by the molar mass. 600 g58.443 g/mol = 10.27 mol of NaCl. It has been found that 1 mol of any gas at STP (Standard Temperature and Pressure = 0 °C and 1 atm) occupies 22.4 L. 6.00 mol×22.4 L1 mol = 134.4 L of CO.

## What is STP formula?

VSTP = V * (273.15/T) * (P/760) This STP formula uses Kelvins, Torrs and Liters.

## How do you calculate 1 mole of gas at STP?

The molar volume of a gas is the volume of one mole of a gas at STP. At STP, one mole (6.02×1023 representative particles) of any gas occupies a volume of 22.4L (figure below). Figure 10.13. 2: A mole of any gas occupies 22.4L at standard temperature and pressure (0oC and 1atm).

## What is the formula for calculating mole?

Worked Example: moles = mass ÷ molar mass (n=m/M) Calculate the amount of oxygen gas, O2, in moles present in 124.5 g of oxygen gas.

## What is the formula for moles to grams?

In order to convert the moles of a substance to grams, you will need to multiply the mole value of the substance by its molar mass.

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## What is STP equal to?

Until 1982, STP was defined as a temperature of 273.15 K (0 °C, 32 °F) and an absolute pressure of exactly 1 atm (101.325 kPa). Since 1982, STP is defined as a temperature of 273.15 K (0 °C, 32 °F) and an absolute pressure of exactly 105 Pa (100 kPa, 1 bar).

## What is the STP value?

Standard Temperature and Pressure (STP)

The universal value of STP is 1 atm (pressure) and 0o C. … In STP, 1 mole of gas will take up 22.4 L of the volume of the container.

## How do you convert moles to volume?

Converting from moles to volume (liters): Multiply your mole value by the molar volume constant, 22.4L. Converting from particles (atoms, molecules, or formula units) to moles: Divide your particle value by Avogadro’s number, 6.02×1023. Remember to use parentheses on your calculator!

## How do you convert moles to mass?

Multiply the molecular weight by the number of moles for the substance. The molecular weight is the number of grams per mole for the substance and gives the conversion factor for moles to grams for that particular substance. So, one mole of water has a mass of 18.02 grams (1 mol H2O x 18.02 g/mol = 18.02 g).