3.677mg =
Suppose you had used carbon tetrachloride, a liquid of density 2.20 g/mL, to determine the actual volume measured by your pipet.
1 answer:
You might be interested in
Answer:
The value of the heat capacity of the Calorimeter = 54.4
Explanation:
Given data
Heat added Q = 4.168 KJ = 4168 J
Mass of water = 75.40 gm
Temperature change = ΔT = 35.82 - 24.58 = 11.24 ° c
From the given condition
Q = ΔT +
ΔT
Put all the values in above equation we get
4168 = 75.70 × 4.18 × 11.24 + × 11.24
611.37 = × 11.24
= 54.4
This is the value of the heat capacity of the Calorimeter.
Answer: The change in enthalpy will be -13.
Explanation:-
Endothermic reactions are those in which heat is absorbed by the system and exothermic reactions are those in which heat is released by the system.
for Endothermic reaction is positive and
for Exothermic reaction is negative.
When 1 mole of A combining with 1 mole of B to produce 3 moles of C
Thus as the stoichiometry has got half of the original , enthalpy of the reaction will also get half.
Thus for reaction :
Thus the change in enthalpy will be -13.