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One mole of oxygen gas, which has the formula O2, has a mass of 32 g and contains 6.02 X 1023 molecules of oxygen but 12.04 X 1023 (2 X 6.02 X 1023) atoms, because each molecule of oxygen contains two oxygen atoms.

## What is the weight of 1 mole of oxygen gas?

Moles of a Substance and the Molecular Weight

The mass of oxygen equal to one mole of oxygen is 15.998 grams and the mass of one mole of hydrogen is 1.008 g. If we total up the gram amounts of each element in the water molecule = 15.998g/mol + 2(1.008g/mol) we get the molar mass of water = 18.014g/mol.

## What is the mass of 1 mole of oxygen molecule?

EXPLANATION: One mole of atoms of oxygen has a mass of 16 g. One mole of oxygen gas has a mass of 32 g.

## What is the weight of oxygen gas?

1 mole of gas has a mass equal to its relative molecular mass expressed in grams. Note that the mass of O_{2}(g) given in the question is 32.00 g, so the question is asking for the volume of 1 mole of O_{2}(g). State your answer: 32.00 g of oxygen gas has a volume of 22.71 L at 0°C and 100 kPa.

## How many grams are there in 1 mole of oxygen gas?

One mole of oxygen gas, which has the formula O_{2}, has a mass of 32 g and contains 6.02 X 10^{23} molecules of oxygen but 12.04 X 10^{23} (2 X 6.02 X 10^{23}) atoms, because each molecule of oxygen contains two oxygen atoms.

## What is the weight of 0.1 mole of na2co3?

Thus, the weight of 0.1 mole sodium carbonate is 10.6g.

## How many moles of electrons weigh 1kg?

Or, 1 kg will contain = $dfrac{1}{{9.108 times 6.022}} times {10^8}$ moles of electrons. Thus, $dfrac{1}{{9.108 times 6.022}} times {10^8}$ moles of electrons will weigh one kilogram. So, the correct answer is “Option D”.

## How many grams are in a mole?

The mass of one mole of a substance is equal to that substance’s molecular weight. For example, the mean molecular weight of water is 18.015 atomic mass units (amu), so one mole of water weight 18.015 grams.

## How many liters are in 1 mole of O2?

The molar volume of an ideal gas is ~22.4 liters per mole (we’ll consider O2 to be an ideal gas for these purposes, and 22.4 is an approximation that varies with temperature, it’s 22.414 at 0C).

## What is the mass of 10 moles of oxygen molecules?

mass = 320 grams….

## What is the mass of 75 000 oxygen molecules?

Mass of one molecule of oxygen =5.3 * 10-23 gram The mass of 75,000 molecules of oxygen is grams. Use scientific notation.

## What is the mass of 3 moles of oxygen gas O2?

3 moles of Oxygen atoms weigh 48.00 grams.

## What is mole of gas?

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). … 2: A mole of any gas occupies 22.4L at standard temperature and pressure (0oC and 1atm).

## What is the volume of 1 kg mole of ideal gas?

One mole of an ideal gas at standard temperature and pressure occupies 22.4 L(molar volume).

## How do you calculate moles of gas?

Molar volume of gases

- volume = 0.5 × 24 = 12 dm
^{3} - Remember that 1 dm
^{3}= 1 000 cm^{3}so the volume is also 12 000 cm^{3} - The equation can be rearranged to find the number of moles, if the volume of gas at rtp is known:
- number of moles = volume of gas at rtp ÷ 24.