Assuming reaction goes to completion, determine the final concentration of NH4Cl in the calorimeter.
heat capacity =3.03J/g.c
density =1.012
5g of NH4Cl used
100 mL of water used
NH4Cl(s) + H2O(l) --> NH4Cl(aq)
To determine the final concentration of NH4Cl in the calorimeter, we need to consider the amount of NH4Cl that dissolves in the water.
First, let's calculate the amount of NH4Cl in moles. The molar mass of NH4Cl is 53.49 g/mol.
5g of NH4Cl / 53.49 g/mol = 0.0934 mol
Next, we need to calculate the volume of the solution after the reaction.
We are given that 100 mL of water is used, so the total volume of the solution is 100 mL.
Now, we can calculate the concentration of NH4Cl in the solution using the moles and volume.
Concentration of NH4Cl (in mol/L) = 0.0934 mol / 0.1 L
Let's simplify this:
= 0.934 mol/L
Therefore, assuming the reaction goes to completion, the final concentration of NH4Cl in the calorimeter is 0.934 mol/L.