Chemistry Delta H Calculation: 7.455 + 94 + 8.4

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To calculate ΔH, the formula used is (msolution x csolution + C) ΔT. The mass of the solution is determined to be 187.5 g, which includes 180 g of water and 7.5 g of KCl. The specific heat capacity of the solution is given as 0.94 J/g°C, and the additional constant C is 8.9 J/g°C. Clarification was sought on the calculation of the mass of the solution, confirming the total mass. Understanding these components is essential for accurate ΔH calculations.
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Homework Statement
i'm not sure I used the numbers right
Relevant Equations
Determination of the dissolution enthalpy
-(7.455 so,94+8,4) Delta T

C44A1456-0723-4621-817E-495206630632.png
C3D2CAEC-90E4-4594-8CE7-35516959ECB4.png
 
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No idea what is what of what, please elaborate.

And please don't omit units.
 
Hi Borek,

I need to calculate ΔH.
And I used this Formular -(msolution x csolution+C) ΔT

msolution= 7.455
Csolution=0,94
C=8,9

it this correct ?
 
No. m of the solution is 187.5 g.
 
Chestermiller said:
No. m of the solution is 187.5 g.
Hi,
Can you explain me why the solution is 187,5
 
There are 180 g of water and 7.5 g of KCl, totaling 187.5 g.
 

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