Tuesday
October 21, 2014

Homework Help: chemistry

Posted by Cicily on Monday, November 12, 2012 at 2:21pm.

1. a) 50ml of water at 46.9C were mixed with 50ml of water at 25.1C in a calorimeter also at 25.1C. The final temperature was 30.1C. Assuming that neither the density of water nor its specific heat capacity change with temperature, calculate the total heat capacity of the calorimeter. (density of water = 1.00g/ml, specific heat capacity = 4.18 j/gk

b) when 5.00g of NaOH (s) are added to 100g of water (using the same calorimeter as in part a), the temperature rises from 25.0C to 37.5C. calculate the molar heat of solution, i.e. delta H for the process. assume that the specific heat of water is 4.18 j/gk and that of the NaOH (aq) solution is the same.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry - 50ml of water at 49.6 C were mixed with 50ml of water at 25.1 C in a...
chemistry - 50ml of water at 46.9 C were mixed with 50ml of water at 25.1 C in a...
Chemistry - 50mL of water at 46.9 degrees Celsius were mixed with 50mL of water ...
Chemistry I - In determining the heat capacity of a calorimeter, 50ml of water ...
Chemistry 2 - I have to calculate the Ccal using the following info: Initial ...
chemistry - What will happen if 50mL of 0.022M Na2S2O3, 50mL of 0.010M AgNO3, ...
Chem - 1) A 15.0 g sample of nickel metal is heated to 100.0 C and dropped into ...
chemistry - Please Help!what will happen if 50mL of 0.022M Na2S2O3, 50mL of 0....
Chemistry - In a coffee-cup calorimeter, 1.70 g of NH4NO3 is mixed with 76.0 g ...
Chemistry - What is the percentage strength (v/v) of Diluted Alcohol, NF, which ...

Search
Members