If there are 12 x 10^23 oxygens in a sample of water, how many grams of hydrogen are in the sample?

This can be solved by understanding of Avogadro's number and mole relationship concept.

A molecule of water have the chemical formula as HO. This implies that for every 1 atom or molecule of oxygen, 2 hydrogen must be present.

In the question given, we have atoms of oxygen. This implies we must have

Avogadro's number is proportionality that relates the number of particles to the amount of substance in that sample and it is given as

Now, let's compare this molar mass - Avogadro's number

molar mass of hydrogen = 1g/mol

from the calculation above, we would have 3.98g of hydrogen present in that particles of oxygen

learn more on avogadro's concept

im pretty sure its b

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl