Calories Required to Raise the Temp of Aluminum

[Drakkith]

Homework Statement

How many calories are required to raise the temperature of 26 grams of aluminum from 20°C to 115°C?

Homework Equations

Specific heat of aluminum is 0.22 cal / g x °C

Amount of heat = SH x mass x (T2-T1)

The Attempt at a Solution

Plugging numbers into the 2nd equation gives me:

cal = 0.22 x 26 x 95
cal = 543.4

So I get 543.4 calories as the answer, or 5.4 x 10² calories. However, my workbook only has the following as possible answers:

5.4 x 10⁺¹
5.4 x 10^-1
5.4 x 10⁺³
5.4 x 10^-3

Have I missed something here, or is my workbook wrong?

 

[berkeman]

I'm no expert in this, but your numbers look okay to me.

 

[Mark44]

I agree with your answer, Drakkith. It seems to me that your workbook has a typo, unless you copied some of the information incorrectly.

 

[Drakkith]

I agree with your answer, Drakkith. It seems to me that your workbook has a typo, unless you copied some of the information incorrectly.

Nope, that's exactly what it says.
Thanks guys.