How many moles are present in 0.140g of HCl?
A)0.140 moles
B)0.00384 moles
C)1.40 moles
D)5.01 moles

Name: How many moles are present in 0.140g of HCl? A)0.140 moles B)0.00384 moles C)1.40 moles D)5.01 moles
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Question

Quizplus · Accepted Answer

We first need to calculate the molar mass of HCl which is 36.46 g/mol. We can then use the formula: moles = mass/molar mass. Plugging in the values, we get: 
moles = 0.140g / 36.46 g/mol = 0.00384 moles. Therefore, the correct answer is B.

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