Question

Read the following passage and answer the questions.

Atoms and molecules are too small to be seen. We cannot pick two 4 atoms of hydrogen and one atom of oxygen to form 1 molecule of water. But we can prepare water by weighing and combining 2g of hydrogen and 16 g of oxygen. Chemist used the term mole, which has same number of atoms as in 12 g of C-12. The actual number of atoms in C-12 is Avogadro's number (6.022 x 1023), which is a constant. The mass of 1 mole of a substance is also fixed. It is equal to the relative atomic mass of an element or relative molecular mass of a compound in gram.

a) A sample of vitamin C contains 3.10 x 1023 oxygen atoms. How many moles of oxygen atoms are present in the sample?

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

c) If 1 g carbon contains x atoms, what will be the number of atoms in 1
g of water?

d) Which of the following has larger mass:
i) 2 mole of water
ii) 2 mole of carbon dioxide mole of ozone
iii) 2

Please anwer the questions fast please its urgent.
Please anwer it before 9:35am (5 October,2020)​

Answer 1

Answer:

2 mole of water 8s correct answer