Question
The number of hydrogen atoms in a mole is Avogadro's number, $6.02 \times 10^{23} .$ If one mole of the gas has a mass of 1.01 grams, estimate the mass of a hydrogen atom.
Step 1
02 \times 10^{23}$. In this case, we are dealing with hydrogen atoms, so one mole of hydrogen contains $6.02 \times 10^{23}$ hydrogen atoms. Show more…
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Express the number in decimal form. Avogadro's number The number of hydrogen atoms in a mole is Avogadro's number, $6.02 \times 10^{23} .$ If one mole of the gas has a mass of 1.01 grams, estimate the mass of a hydrogen atom.
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Real Numbers
One mole of atoms contains Avogadro's number, $6.02 \times 10^{23}$ atoms. The mass of one mole of carbon atoms is exactly $12 \mathrm{~g}$. What is the mass of a carbon atom, in $\mathrm{kg}$ ?
Avogadro' constant is used to calculate the number of particles in a mole. A mole is a basic unit in chemistry to measure the amount of a substance. The constant is $6.0221413 \times 10^{23}$ . Write Avogadro's constant in standard notation.
Prerequisites
Exponents and Scientific Notation
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