How many molecules does 0.773 moles of ca(oh)2 contain?

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0,773 moles of Ca(OH)₂ contain 4,653 · 10²³ molecules.

To calculate that we need to use the Avogrado Number. This number tells us the number of molecules that are in 1 mol of a substance. The name "Avogrado Number" was given in honor of Amadeo Avogadro, an Italian scientist who studied atomic theory. The number is 6,02· 10²³ molecules/mol. To calculate the number of Ca(OH)₂ molecules we use the following conversion factor:



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There is no reason to think the results are biased or not conducted properly but you should not assume the results are correct just because they were done in a laboratory so the answer would be c. it is likely to be reliable because the results support the conclusion presented.