Question

chemistry: how much hcl (hydrochloric acid) is in a 90 - milliliter bottle that is marked 80% hcl?
milliliters of hcl is in the bottle.
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Explanation:

Step1: Convert percentage to decimal

To find the amount of HCl, we first convert 80% to a decimal. 80% = \( \frac{80}{100}=0.8 \)

Step2: Calculate the amount of HCl

We multiply the total volume of the solution (90 milliliters) by the decimal form of the percentage. So, the amount of HCl is \( 90\times0.8 \)

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Answer:

72