Question

to find the number of molecules in the compound which of the following is employed a)chromatography b)chattier principle c)kc d)None of the above

Answer 1

Explanation:

Determine the mass of the substance, and its molar mass. Divide the given mass by its molar mass to get moles, then multiply times 6.022×1023molecules1mol

To find the number of molecules in a gas sample, given the pressure, volume, and temperature of the sample:

Figure out how many moles of CO2 gas you have. ...

Use Avogadro's number to convert moles into molecules: 0.0211915 mol × 6.02×1023 molecules/mol = 1.28 × 1022 molecules

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