Calculate the enthalpy change and delta h

Reference no: EM13295941

A calorimeter contains 26.0mL of water at 14.0\, ^{\circ}C . When 2.30g of \rm X (a substance with a molar mass of 46.0g/mol ) is added, it dissolves via the reaction rm X{(s)}+H_2O{(l)} \rightarrow X{(aq)} and the temperature of the solution increases to 29.5\, ^{\circ}C .

Calculate the enthalpy change, Delta H, for this reaction per mole of \rm X.

Assume that the specific heat and density of the resulting solution are equal to those of water [4.18 \rm J/(g \cdot {^\circ C}) and 1.00 \rm g/mL] and that no heat is lost to the calorimeter itself, nor to the surroundings. Express the change in enthalpy in kilojoules per mole to three significant figures

Reference no: EM13295941

Questions Cloud

What is the value of a share in company q : Company Q has just paid a dividend of $1.40 per share. Its divident is expected to grow at 5% per year perpetually. If the required return is 10%, what is the value of a share in company Q?

Determine the velocity and acceleration of block b : Determine the velocity and acceleration of block B and determine the velocity and acceleration of Car A relative to Car B.

Compensation and the ethical standard : Compensation and the Ethical Standard

What is the direction of the impulse given to the ball : A tennis ball of mass m=0.057kg and speed v=24 m/s strikes a wall at a 45 degrees angle and rebounds with the same speed at 45 degrees. What is the direction of the impulse given to the ball

Calculate the enthalpy change and delta h : A calorimeter contains 26.0mL of water at 14.0\, ^{\circ}C . When 2.30g of \rm X (a substance with a molar mass of 46.0g/mol ) is added, it dissolves via the reaction rm X{(s)}+H_2O{(l)} \rightarrow X{(aq)} and the temperature of the solution incre..

Nstitution of the constitution was originally meant : Which institution of the Constitution was originally meant to directly represent the American people?

Determine how many minutes does he save : Richard is driving home to visit his parents. 140 of the trip are on the interstate highway where the speed limit is 65. How many minutes does he save

What is the economic order quantity : The carpets are sold out before they are restocked. What is the economic order quantity?

Scoring guide icon discussion and participation scoring : Scoring guide icon Discussion and Participation Scoring Guide.

User Account

All Pages