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How many molecules are in 50 mL of 2 M HCl?

1 Answer

5 votes

Answer:

see below

Step-by-step explanation:

Use dimensional analysis


(50mL)/(1) *(1 L)/(1000 mL) *(2 M)/(1 L) * (6.022 *10^(23) )/(1 mol) = (50*2*6.022 *10^(23))/(1000) = 6.022 *10^(22)

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