Question

) A sample of vitamin C contains 3.10 x 1023 oxygen atoms. How
many moles of oxygen atoms are present in the sample?
How are given mass, molar mass and moles related to each Other?
If I g carbon contains x atoms, what will be the number of atoms in 1
g of water?
Which of the following has larger mass:​

Answer 1

Answer:

i) A sample of vitamin C is known to contain (2.58 x 10 to the power 24 oxygen atoms) or ot csn also be writtenas 3.10×10 to the power 23 oxygen atoms. How many moles of oxygen atoms are present in the sample ? 

ii) How are given mass, molar mass and moles related to each Other?

We can relate it's mass to the number of moles by using the compound's molar mass as a direct conversion factor.

iii) If I g carbon contains x atoms, what will be the number of atoms in 1

g of water?

Cannot answer this question.

iv) Which of the following has larger mass:

i) 2 moles of water

ii) 2 moles of carbon dioxide ✔

iii) 2 moles ozone

ii) 2 moles of carbon dioxide.