Sulfuric acid (H2SO4) has a molar mass of 98.1 g/mol. How many oxygen atoms are found in 75.0 g of H2SO4? A. 1.15 * 10^23 B. 1.84 * 10^24 C. 4.61 * 10^23 D. 7.87 * 10^23

B

Explanation:

first find the no. Of moles of H2SO4

= 75/98.1

= 0.7645

Next step

In on mole of H2SO4 the no. of oxygen atom is 4.

1 H2SO4 : 4 O

0.7645 : x x = 0.7645x4 = 3.0581

next multiply avogadros constant

3.0581 x 6.022 * 10^23 = 1.84x10^24