Question

Which of the following molecules will have the maximum weight?
0.2 moles of sucrose2 moles of carbon dioxide2 moles of limestone10 moles of water


​

Answer 1

Answer:

2 moles of carbon dioxide

Answer 2

Given - Molecules and their number of moles - sucrose, carbon dioxide, limestone and water.

Find - Maximum weight from the given options.

Solution - Weight can be calculated from the formula - number of moles*molecular weight.

Keeping the values in equation-

For sucrose -

Molecular weight is - 342.3 g/mol

Weight - 342.3*0.2

Weight - 68.46 gram

For carbon dioxide -

Molecular weight is - 44 g/mol

Weight - 44*2

Weight - 88 gram

For limestone -

Molecular weight is - 100 g/mol

Weight is - 100*2

Weight - 200 gram

For water -

Molecular weight is - 18 g/mol.

Weight is - 18*10

Weight - 180 gram

Hence, maximum molecular weight from given options is of limestone.