Which of the following has the highest mass ?

Question

Which of the following has the highest mass ? (A) 20 g of sulphur (B) 4 mol of carbon dioxide (C) 12 × 1024 atoms of hydrogen (D) 11.2 L of helium at N T.P

Tardigrade Admin · Accepted Answer

Molar mass of CO2=44 g mol-1 ∴ 4 mol of CO2=44×4 = 176 g (C) 6.02× 1023 atoms of hydrogen has mass =1.008 g 12× 1024 atoms of hydrogen has mass =20.1 g (D) 22.4 L of helium at N.T.P. has mass = 4 g 11.2 L of helium at N.T.P. has mass = 2 g Thus 4 moles of CO2 has maximum mass

Q. Which of the following has the highest mass ?

20 g of sulphur

4 mol of carbon dioxide

$12 \times 1 0^{24}$ atoms of hydrogen

11.2 L of helium at N T.P

Q. Which of the following has the highest mass ?

20 g of sulphur

4 mol of carbon dioxide

12×1024 atoms of hydrogen

11.2 L of helium at N T.P

Molar mass of CO2​=44gmol−1 ∴ 4 mol of CO2​=44×4=176g (C) 6.02×1023 atoms of hydrogen has mass =1.008g 12×1024 atoms of hydrogen has mass =20.1g (D) 22.4L of helium at N.T.P. has mass =4g 11.2L of helium at N.T.P. has mass =2g Thus 4 moles of CO2​ has maximum mass

$12 \times 1 0^{24}$ atoms of hydrogen