A hot sample of unknown material is placed into a calorimeter containing 42.1 g of water at [tex]$22.0^{\circ} C$[/tex]. The final temperature of the water is [tex]$62.7^{\circ} C$[/tex]. The specific heat capacity of water is [tex]$4.184 \, J / g ^{\circ} C$[/tex].

What is the heat change for the water?

[tex] q _{ H _2 O } = \, [?] \, J [/tex]

Enter either a + or - sign AND the magnitude.