CuH12O10S i think that’s correct i’m not sure
This is an incomplete question, here is a complete question.
A 6.55 g sample of aniline molar mass = 93.13 g/mol) was combusted in a bomb calorimeter. If the temperature rose by 32.9°C, use the information below to determine the heat capacity of the calorimeter.
ΔH°rxn = -1.28 × 10⁴ kJ
Answer : The heat capacity of the calorimeter is,
Explanation :
First we have to calculate the moles of aniline.
Now we have to calculate the heat releases.
As, 4 mole of aniline on combustion to releases heat =
So, 0.0703 mole of aniline on combustion to releases heat =
Now we have to calculate the heat capacity of the calorimeter.
Thus, the heat capacity of the calorimeter is,
In the titration of acetic acid with a strong base NaOH, the concentration of acetic acid is determined using the volume and molar concentration of NaOH used for titrating the vinegar solution. NaOH and acetic acid react in 1:1 mole ratio.
When a drop of the strong base, dispensed from the buret sticks to the walls of the Erlenmeyer flask but is not washed into the flask containing vinegar, it means that the recorded value of NaOH dispensed will be higher than the actual value required for the titration. So, the reported moles of acetic acid calculated from the moles of NaOH used for the titration will be higher. So, the mass percent reported will be higher than the actual value.
Answer:
Explanation: For example, pH 4 is ten times more acidic than pH 5 and 100 times (10 times 10) more acidic than pH 6. The same holds true for pH values above 7, each of which is ten times more alkaline (another way to say basic) than the next lower whole value.
HOPE THAT HELPS