Question

Arjun purchased 250 g of glucose (C16 H12 O6)for Rs. 40. Find the cost of glucose/mole

Answer 1

Answer:

The moles of glucose in 250 grams are 1.388 thus the cost of glucose per mole = Rs 28.8 per mol

Explanation:

Convert the mass given into moles by relation

$number \: of \: moles = \frac{mass \: in \: grams}{molar \: mass}$

molar mass of glucose can be calculated by adding the atomic mass of each atom in the glucose .:

= (12×6) + (12×1) + (16×6)

=180 gram

THUS the number of moles = 250/180

= 1.388 mol

To find the cost of one mole divide the total cost by the total number of moles

= 40/1.388 = 28.8 rupee