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7.2 Molar Mass
Benadryl is used to treat arthritis.
The formula of Naproxen is C14H14O3.
The formula for Benadryl is C17H21NO.
Naproxen is used to treat arthritis.
The chemical formula of a substance can be used to calculate its mass.
Even on the most accurate balance, a single atom or molecule is too small to weigh.
It takes a lot of atoms to make a substance.
A few sips of water contains Avogadro's number of water molecule.
In the laboratory, we can use a balance to weigh out Avogadro's number of particles.
When we weigh out the number of grams equal to the element's mass, we are left with 6.02 atoms.
Carbon has an atomic mass of 12.01.
A mole of carbon atoms has a mass of 12.01.
To get 1 mole of carbon atoms, we need to weigh out 12.01 g of carbon.
The atomic mass of carbon is found by looking at it.
If you want to determine the molar mass of a compound, you have to add the results from Sample Problem 7.3 to the formula.
In this text, we round the mass of an element to the hundredths place or use at least four significant figures for calculations.
Sulfur, S, iron, Fe, salt, NaCl, and K2Cr2O7 are 1-mole samples.
The molar mass of Li2CO3 is used to treat bipolar disorder.
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