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marysya [2.9K]
3 years ago
9

determine the specific heat of a mayterial if a 35g sample of the material absorbs 48J as it is heated from 298K to 313K

Chemistry
1 answer:
Oksi-84 [34.3K]3 years ago
6 0
Data:

m = 35g
Q = 48 j
T1 = 298K
T2 = 313K
Cs = ?

Fórmula: Q = m*Cs*(T2 - T1) => Cs = Q / [m (T2 - T1)]

Cs = 48 j / [35g (313K - 298K] = 0.0914 j / g*K = 91.4 j / kg*K
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The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same thing as weight, but the abbreviation (w/v) is also common. 262 grams of sucrose are needed to make 655 mL of a 40.0% (w/v) sucrose solution

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using w/v we can calculate the weight of sucrose:-

40.0% means 40 g sucrose/ 100 g solution

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262  grams of sucrose are needed to make 655 mL of a 40.0% (w/v) sucrose solution.

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