How many atoms are present in a sample with a mass of ?
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Suppose you have a sample of sodium weighing 11.50 g. How many atoms of sodium are present in the sample? What mass of potassium would you need to have the same number of potassium atoms as there are sodium atoms in the sample of sodium?
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A particular sample of aluminum oxide has 5.83 x 10^22 atoms. How many Al atoms and how many oxygen atoms are present? How many grams of aluminum are present in this sample?
A sample of glucose C6H12O6 contain 2.0 X 10^22 atoms of carbon
a) How many atoms of hydrogen does the sample contain?
b)How many molecules of glucose are present during the within the sample ?
c) How many moles of glucose does this sample represent ?
d) what is the mass of the sample in grams ?