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Home $>$ MT$125$ Fall $20237$B$-$IS $>$ Assessment

Unit $4$ HW$1$

Score: $\frac{10}{16}$

$\frac{12}{16}$ answered

You need a $10\%$ alcohol solution. On hand, you have a $50mL$ of a $75\%$ alcohol mixture. How much pure water will you need to add to obtain the desired solution?

A$)$ Write an equalion using the information as it is given above that can be used to solve this problem. Use $x$ as your variable to represent the amount of pure water you need to use.

Equation:

B$)$ You will need

$mL$ of pure water

to obtain

$mL$ of the desired $10\%$ solution.

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