How many molecules are there in 56 mg HCN ?

How many molecules are there in a 3.46 g sample of hydrogen chloride, HCl? Note: The number of molecules in a sample is related to moles of compound (1 mol HCl = 6.023 xx 10^(23) HCl molecules). Therefore if you first convert grams HCl to moles, then you can convert moles to number of molecules).

The volume of a drop of water is 0.04 mL . How many H_(2) O molecules are there in a drop of a water? d = 1.0 g mL .

How many oxygen molecules are used in glycolysis of one molecule of glucose ?

How many atoms are there in pyaranose ring ?

The structural formula of sativene is shown below. How many stereogenic centers are there in this molecule ?