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By definition, Avogadro's Number is the number of molecules or formula units in the number of grams corresponding to the gram molecular weight or gram formula unit, and by experiment, Avogadro's Number is about 6.022 X 1023. Therefore, 7.75 X 1025 formula units contains (7.75 X 1025/6.022 X 1023) or 1.29 X 102 moles or formula units, to the justified number of significant digits.
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How many molecules are in 26.3 g of calcium hydroxide?
26.3 g of calcium hydroxide contain 2,054 molecules.
How many molecules are in 32 g of SO2?
32 g SO2 x 1 mole SO2/96 g x 6.02x10^23 molecules/mole = 2.0x10^23 molecules
How many molecules (not moles) of NH3 are produced from 1.57104 g of H2?
The answer is 1,57.10e27 molecules.
How many O2 molecules are needed to react with 7.45 g of S?
1,4.10e23 molecules
How many molecules are contained in a 5.20 g sample of dimethylmercury?
The answer is 1,357.10 ex.23 molecules.
How many grams in 74 centigrams?
Move the decimal two places to the left. 74 cg= .74 g
How many moles are in 74 g of KCl?
1 mole
How many molecules are there in 22.0 g of silver chloride?
22.0 g of silver chloride contain 0,918.10e23 molecules.
How many molecules are in 26.3 g of calcium hydroxide?
26.3 g of calcium hydroxide contain 2,054 molecules.
How many molecules are in 334 g CBr4?
334 g x 1 mol/331.6 g x 6.02x10^23 molecules/mole = answer
How many molecules are in 325g of CBr4?
325 g of CBr4 have 5,9.10e23 molecules.
How many molecules are in 32 g of SO2?
32 g SO2 x 1 mole SO2/96 g x 6.02x10^23 molecules/mole = 2.0x10^23 molecules
How many hydrogen molecules are in 31.8 L H2(g) at STP?
The answer is 8,5379.10e23 molecules.
How many molecules of H2(g) are there in a 21.25 gram sample?
The number of molecules is 6,3985.10e24.
How many molecules are contained in a 7.85-g sample of dimethylmercury?
2.05×1022 molecules
How many molecules (not moles) of NH3 are produced from 1.57104 g of H2?
The answer is 1,57.10e27 molecules.
How many O2 molecules are needed to react with 7.45 g of S?
1,4.10e23 molecules
