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Kazeer [188]
3 years ago
5

Find q when 22.0g of water is heated from 25.0 C to 100 C. The specific heat capacity is water is 4.184 J/g.K

Chemistry
1 answer:
Leokris [45]3 years ago
3 0

Answer:27,430J/g.K

Explanation:q= mass* specific heat capacity * change in temperature (kelvin)

22*4.184*[(100-25) + 273]

22*4.184*298

27,430J/g.K

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3 years ago
What is the volume of an 2.3 m solution with 212 grams of calcium chloride (cacl2) dissolved in it?
ira [324]

830 mL

The volume of an 2.3 m solution with 212 grams of calcium chloride (cacl2) dissolved is 830 mL.

The solution has a concentration of 2.3 mol/L.

<h3>a) Moles of CaCl2</h3>

Molar mass of CaCl2 = 110.98 g/mol

Moles of CaCl2 = 212 g CaCl2 x (1 mol CaCl2/110.98 g CaCl2)

= 1.910 mol CaCl2

<h3>b) Volume of solution</h3>

V = 1.910 mol CaCl2 x (1 L solution/2.3 mol CaCl2) = 0.83 L solution

= 830 mL solution

<h3>How much CaCl2 is there in the solution by molarity?</h3>
  • The number of moles is 0.125 x 2 = 0.25 mol since the molarity is 2.0M.
  • To get the answer of 27.745 g, simply multiply this by the molar mass of calcium chloride, which is 110.98 g/mol.

To learn more about CaCl2 solution visit:

brainly.com/question/1053707

#SPJ4

8 0
2 years ago
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