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zavuch27 [327]
2 years ago
14

How many moles are there in 7.24 grams of calcium carbonate? With work shown

Chemistry
2 answers:
balu736 [363]2 years ago
8 0

Answer:

0.0723371390261859

slava [35]2 years ago
5 0
CaCO3 = 40 + 12 + 16*3 = 100 g/mol
Mol CaCO3 = m/M = 7.24/ 100 = 0.0724 mol
Can you mark it brainliest?
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Gnoma [55]
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klio [65]
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3 0
3 years ago
Calculate: A. Mercury has a specific Heat Capacity of 0.14 J/goC. How much heat is needed to raise the thermometer temperature 1
kari74 [83]

Answer:

\boxed {\boxed {\sf 56 \ Joules}}

Explanation:

We are given the mass, specific heat, and temperature, so we must use this formula for heat energy.

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We know the variables and can substitute them into the formula.

m= 5 \ g \\c= 0.14 \ J/ g \ \textdegree C \\\Delta T= 80 \ \textdegree C

q= (5 \ g )( 0.14 \ J/ g \ \textdegree C ) ( 80 \ \textdegree C)

Multiply the first numbers. The grams will cancel.

q= 0.7 \ J/ \textdegree C(80 \ \textdegree C )

Multiply again. This time the degrees Celsius cancel.

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3 years ago
An agronomist hypothesized that add ran intots
Alchen [17]

Answer:

D

Explanation:

8 0
3 years ago
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