Calculate the amount of heat required to raise the temperature of a 16 g sample of water from 5°C to 12°C.
Round to the correct number of sig figs.
I got 5e3 and it was wrong.
try two significant figures.
I got it wrong! would it be 5e3. cause i messed up on the amount of spaces but idk if that is the correct sig fig?
I got it:) it was 5e2
how many signigicant figures does 890 have?
To calculate the amount of heat required to raise the temperature of a substance, we can use the specific heat capacity formula:
q = m * c * ΔT
where:
q is the amount of heat (in joules),
m is the mass of the substance (in grams),
c is the specific heat capacity of the substance (in J/g°C), and
ΔT is the change in temperature (in °C).
In this case, we are given:
m = 16 g (mass of water),
ΔT = (12°C - 5°C) = 7°C (change in temperature), and
c = 4.184 J/g°C (specific heat capacity of water).
Now, let's plug in the values into the formula:
q = 16 g * 4.184 J/g°C * 7°C
Calculating this, we get:
q = 470.144 J (to three significant figures)
So, the amount of heat required to raise the temperature of a 16 g sample of water from 5°C to 12°C is approximately 470.144 J (rounded to three significant figures).