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salantis [7]
3 years ago
6

2.5 gm of a sample of Nahco3 when strongly.

Chemistry
1 answer:
mr_godi [17]3 years ago
3 0

Answer:

Sry but i hope u will get the right answer and have a great christmas only 3 more days!

Explanation:

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What amount of heat is released when the temperature of 450.0 g of a
Molodets [167]

Answer:

\boxed {\boxed {\sf 4038.48 \ Joules}}

Explanation:

Since we are given the mass, specific heat, and change in temperature, we should use this formula for heat:

q=mc\Delta T

The substance's mass is 450.0 grams, the specific heat is 1.264 J/g°C, and the  change in temperature is 7.1 °C.

m= 450.0 \ g \\c= 1.264 \ J/g \textdegree C\\\Delta T= 7.1 \ \textdegree C

Substitute the values into the formula.

q= (450.0 \ g)(1.264 \ J/g \textdegree C)(7.1 \ \textdegree C)

Multiply the first 2 values together. The grams will cancel out.

q= 568.8 \ J/ \textdegree C (7.1 \ \textdegree C)

Multiply again. This time, the degrees Celsius cancel out.

q= 4038.48 \ J

<u>4038.48 Joules</u> of heat energy are released.

5 0
2 years ago
How many moles of O2 are contained in 32 grams of O2?
Radda [10]

Answer:

2 moles

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7 0
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I have tried the answer 3.9149 and 3.914, it is incorrect
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Yea pretty much it's 3.49

Explanation:

3 0
3 years ago
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