Question

Jill mixes two types of concentrations of HCI (hydrochloric acid): 0.375 liters of 25% hydrochloric acid, and 0.625 liters of 65% hydrochloric acid. What is the HCI concentration of the mixed solution? O 56% O 40% O 50% O 446

Answer 1

Given:

Jill mixes two types of concentrations of HCI (hydrochloric acid):

a.) 0.375 liters of 25% hydrochloric acid and 0.625 liters of 65% hydrochloric acid.

To be able to find the final HCL concentration, we will be generating the following formula:

`\text{ Original + Added = Result}`
`(0.375)((25)/(100))\text{ + (0.625)(}(65)/(100))\text{ = (x)}(0.375\text{ + 0.625)}`

Where,

x = the final concentration of HCL

Let's find x,

`(0.375)((25)/(100))\text{ + (0.625)(}(65)/(100))\text{ = (x)}(0.375\text{ + 0.625)}`
`(0.375)(0.25)\text{ + (0.625)(0.65) = (x)(}1)`
`0.09375\text{ + 0.40625 = x}`
`0.5\text{ = x }\rightarrow\text{ x = 0.5}`
`\text{ x = 0.5 x 100 = 50\%}`

Therefore, the final concentration of the mixed solution is 50%.