thermochem. realated?

Question

When 194 mL water at 34°C is mixed with 78 mL water at 69°C, what is the final temperature? (Assume that no heat is lost to the surroundings and that the density of water is 1.00 g/mL.)

explination would be nice, answer is fine too.

Answer 1

Please use algebra!
Let the final temperature to be T°C. We have:
194*(T - 34) = 78*(69 - T)
Solve for T and you get the answer!