Question

suppose you have 897 sheets of paper. how many moles of paper do you have?


Consider the following definitions.
1 doz = 12
1 gross = 144
1 ream = 500
1 mol = 6.022×1023
Suppose you have 897 sheets of paper.

Answer 1

Answer:

$1.49\cdot 10^{-21} mol$

Explanation:

1 mole of a substance is defined as the amount of substance containing a number of units of the substance equal to the Avogadro number:

$N_A = 6.022\cdot 10^{23} mol^{-1}$

This means that 1 mole of paper will contain a number of sheets equal to the Avogadro number,

$N_A = 6.022\cdot 10^{23} mol^{-1}$

In this case, instead, the number of sheets in this amount of paper is

N = 897

Which corresponds to n moles.

Therefore, we can solve the problem by using the rule of three:

$\frac{1 mol}{N_A}=\frac{n}{N}$

And solving for n,

$n=1 mol \cdot \frac{N}{N_A}=1 mol \cdot \frac {897}{6.022\cdot 10^{23}}=1.49\cdot 10^{-21} mol$