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3 years ago

What volume of 6.00 M hydrochloric acid is required to make 0.50 L of 0.20 M solution of hydrochloric acid

Chemistry

1 answer:

WINSTONCH [101]3 years ago

7 0

Answer:

16.7 mL of 6.0 M HCl

Explanation:

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3 years ago

50 grams of acetic acid C2H4O2 are dissolved in 200 g of water. Calculate the weight % and mole fraction of the acetic acid in t

Len [333]

$50g$ $of$ $C_2H_4O_2$ $in$ $200g$ $H_2O$

so:

$\frac{50}{200+50}+100\%= \frac{50*100}{250}\%=20\%$

$MW of acid = 2*C+4*H+2*O = 2*12+4*1+2*16=$

$=24+4+32=60g/mol$

so:

$\frac{50g}{60g/mol}\approx0.83moles$

it means that

in $50g$ of acid there is $\approx0.83$ moles of acid

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so:

$\frac{200g}{18g/mol}\approx11.11moles$

it means that:

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So your answers are:

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$0.069$

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