Akettle of water is at 14.5°c. its temperature is then raised to 50.0°c by supplying it with 5,680 joules of heat. the specific heat capacity of water is 4.186 joules/gram degree celsius. what is the mass of water in the kettle? express your answer to three significant figures. the mass of the water in the kettle is grams.

- 38.2 g.

Solution:- The equation used for solving this type of calorimetry problems is:

where, q is the heat energy, m is mass, c is specific heat and delta T is the change in temperature.

Water temperature is increasing from 14.5 degree C to 50.0 degree C.

 = 35.5 degree C

q is given as 5680 J and specific heat value is .

The equation could be rearranged for m as:

Let's plug in the values in it:

m = 38.2 g

So, the mass of water in the kettle is 38.2 g.

i think it's letter a.