Question

Find out no. of glucose molecuLes in 1.8g of glucose

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Answer 1

Answer:

1/100 mol of glucose = 6.022 X 10 ^ 21 molecules of glucose

Explanation:

molar weight of glucose = 180g/mol

as,

6 [c] + 12[h] + 6[o]

= 6[12] +12[1] + 6[16]

= 72 + 12 + 96 = 180g/mol

P.S. these are approximates, mass of carbon is actually 12.011, of hydrogen is 1.008 and of oxygen is 15.999

no of mol = given mass / molar mass

= 1.8g/180g/mol = 1/100 mol = 6.022 X 10 ^ 21