Posted by **Jaret** on Thursday, October 10, 2013 at 11:41pm.

How many joules (J) are needed to increase the temperature of 43.0g of aluminum from 25 degrees celcius to 50 degrees celcius? (Cp of Al=0.90J/g degrees of celcius) I also need the formula, data, and answer.

- Chemistry -
**Swaastikaa**, Friday, October 11, 2013 at 3:17am
The formula is Q = mc(theta),

where theta is difference in temperature

(final- initial)

m = 43g, Cp = 0.90 J/g & theta = 25 degree C

Substitute all the values into the equation above:

Q = (43)(0.90)(25) = 967.5 J

- Chemistry -
**DrBob222**, Friday, October 11, 2013 at 4:15pm
Note the correct spelling of celsius.

## Answer this Question

## Related Questions

- Grade 12 Chemistry - If 100g of zinc (c=377J/kg degrees celcius) at 95 degrees ...
- Chemistry - How many joules of heat are needed to heat 25.0 g of ice at -5.0 ...
- Math - An object is heated to 90 degrees Celcius and is then allowed to cool in ...
- Math - An object is heated to 90 degrees Celcius and is then allowed to cool in ...
- Chemistry 1 HN - Find the mass of iron heated to 85 degrees celcius that was ...
- Math - An object is heated to 90 degrees Celcius and is then allowed to cool in ...
- Chemistry - Assuming complete dissociation of the solute, how many grams of KNO3...
- physics - A 2.8 kg gold bar at 99 degrees celcius is dropped into 0.21 kg of ...
- CHEMISTRY HELP NEEDED A.S.A.P - Given: N2O4 (g) « 2NO2 (g) @ 25 degrees celcius...
- Multon Middle - A 5. pellet of aluminum at 20 degrees celcius gains 200 joules ...