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alukav5142 [94]
2 years ago
7

if you mixed 265g of sugar with to get a final volume of 725 ml, what is the concentration of this solution g/l

Chemistry
1 answer:
Brums [2.3K]2 years ago
8 0

Answer:

353.10g/l

Explanation:

1000ml make 1 l

725ml are equivalent to 0.725l

Thus 625/0.725 makes a solution of

353.10g/l

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Scientist looking for new substances in plants grind up the plants with methanol. This solvent dissolves many plant compounds. H
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4 0
2 years ago
Find [H+] of a 0.056 M hydrofluoric acid solution. Ka = 1.45 x 10-7
brilliants [131]

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Explanation:

HF\rightarrow H^+F^-

 cM              0             0

c-c\alpha        c\alpha          c\alpha  

So dissociation constant will be:

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Give c= 0.056 M and \alpha = ?

K_a=1.45\times 10^{-7}

Putting in the values we get:

1.45\times 10^{-7}=\frac{(0.056\times \alpha)^2}{(0.056-0.056\times \alpha)}

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Thus [H^+] of 0.056 M HF solution is 8.96\times 10^{-5}

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hope it really helps...!!!

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2 years ago
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