Which of the following would weigh the highest? - Vidyadip

Question

Which of the following would weigh the highest?

✓

Answer

Mass of $1$ mole of sucrose $(12 \times 12) + (1 \times 22)+ (16 \times 11) = 342g$

Mass of $0.2$ mole of sucrose $= 342 \times 0.2 = 68.4g$

Mass of $1$ mole of $CO_2 = 12 + (16 \times 2) = 44g.$ Mass of $2$ moles of $CO_2 = 44 \times 2 = 88g$
Mass of $1$ mole of $CaCO_3 = 40 + 12 + (16 \times 3) = 100g$

Mass of $2$ moles of $CaCO_3 = 100 \times 2 = 200g$

Mass of $1$ mole of $H_20 = 2 + 16 = 18g$

Mass of $10$ moles of $H_2O = 18 \times 10 = 180g$

Therefore, mass of $2$ moles of $CaCO_3$ is the highest, i.e., $200g.$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q. [1 M]" from Atoms and Molecules→Atoms and Molecules — all question types→Science STD 9 question papers→Rajasthan Board STD 9 question papers→Rajasthan Board question paper generator→

Similar questions

Molecules made up of two or more elements are called:

Identify the action involved in opening or shutting a door:

Antacid are prescribed during acidity. Commercially available antacids consist of magnesium hydroxide $[\ce{Mg(OH)2}],$ sugar and flavouring agents. The magnesium hydroxide act as base and form salt and water on reaction with hydrochloric acid of the stomach. The mass of salt and water formed is equal to the combined mass of:

Plasmolysis occurs due to:

Which of the following states has the highest percentage of irrigated land?

___ is grown in mixed cropping:

Sounds having frequency more than 20,000 Hz are called:

A person pushing a wall hard is liable to fall back. Which law is related for this?

The centre for cellular and molecular biology is located at:

The force acting on an object are balanced, then the object: