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Grace [21]
4 years ago
9

Warm and cold fronts are formed by the movement of different air masses.

Chemistry
1 answer:
vekshin14 years ago
3 0
That is true because the warm air goes up and the cold air comes down 
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Joan needs a 0.053-M solution of HCl, but only has access to 2.12-M HCl, a 10-mL graduated pipet, and a 25-mL volumetric flask.
dmitriy555 [2]

Answer:

Joan should measure 0.625 mL of 2,12 M HCl solution to create her desired solution.

Explanation:

Molarity of HCl Joan has access to = M_1=2.12 M

Volume of 2.12 M of HCl Joan use = V_1=?

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Volume of 0.053 M of HCl Joan can prepare = V_2=25 mL

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=\frac{0.053 M\times 25 mL}{2.12 M}=0.625 mL

Joan should measure 0.625 mL of 2,12 M HCl solution to create her desired solution.

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