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Mariulka [41]
2 years ago
6

An 100g box have a temperature of 22 C. What temperature must a 200g box be kept at in order for both to have the same amount of

thermal energy?
Chemistry
1 answer:
Elis [28]2 years ago
4 0

Answer:

the answer is 1 sir BC i t is BC it is BC its 2

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Un estudiante debe preparar una disolución 2M de NaCl (58,44 g/mol) en un recipiente de 7L. ?Cuántos gramos de NaCl debe agregar
Gnesinka [82]

Answer:

818.2 g.

Explanation:

  • Molarity is the no. of moles of solute per 1.0 L of the solution.

<em>M = (no. of moles of NaCl)/(Volume of the solution (L))</em>

<em></em>

M = 2.0 M.

no. of moles of NaCl = ??? mol,

Volume of the solution = 7.0 L.

∴ (2.0 M) = (no. of moles of NaCl)/(7.0 L)

∴ (no. of moles of NaCl) = (2.0 M)*(7.0 L) = 14.0 mol.

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<em></em>

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2 years ago
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