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okayy.....
so.....
wait

ummm.... but water isnt involved in the reaction...

but the solution isnt water XD so you dont know its heat capacity....

so isnt it irrelevant?

okayy.... I hope your right... :p

Unless you're told (in the question) otherwise, i'm right lol

okay

so ummmm hold on let me plug in the equation

what is the mass of the equation? :/

im confused right now....

What are you confused about?

you took the density and volume of water to find the mass right?

yep, the definition for density is: \(\sf density=\dfrac{mass}{volume}\)
so i just rearranged

but doesnt the density and volume of water depend on the amount? or no?

oh, you added the two volumes?

yeah

Thats the volume of the solution

okayyyy so
\[Q = 60 \times 4.18 \times (27.5 - 25)\]

right?

oh okay, but what about the values given (0.250 M)?

where do those come in?

okay, so hold on

The answer would be -627?

yep, just tack on some units to that

okay, thnx so much!!!!

no problem !