Heat lost by nickel = Heat gained by water
heat gained or lost q = m c ∆T
-275g x 0.444J/gC x (Tf - 100) = 100g x 4.18J/gC x (Tf - 22)
just solve for Tf (temperature final)
notice I put a negative sign in front of heat lost by nickel since it is loosing heat.
Your final answer should be very close to 40 degrees Celsius
heat gained or lost q = m c ∆T
-275g x 0.444J/gC x (Tf - 100) = 100g x 4.18J/gC x (Tf - 22)
just solve for Tf (temperature final)
notice I put a negative sign in front of heat lost by nickel since it is loosing heat.
Your final answer should be very close to 40 degrees Celsius