Question

Cost of sucrose is 20 per kg..Its cost per mole is

Answer 1

The cost of per mole is  Rs. 6.849

Step-by-step explanation:

Cost of sucrose is 20 per kg

molecular formula of sucrose  is $C_{12}H_{22}O_{11}$

then molecular mass of sucrose = (12×12+22+16×11) = 342 g

i.e

1 mole of sucrose = 342 g

number of moles in 1 kg = $\frac{1000}{342}$= 2.92 mole

cost of 1000 g of sucrose = Rs. 20

cost of 2.92 mole of sucrose= $\frac{2.92}{20}$ = 0.146

cost of 1 mole of sucrose = $\frac{1}{0.146}$  = 6.849

hence, The cost of per mole is  Rs. 6.849

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