Question
Asked Feb 13, 2020
16 views

When one mole of calcium carbonate reacts with ammonia, solid calcium cyanamide, CaCN2, and liquid water are formed. The reaction absorbs 90.1 kJ of heat. Write a balanced thermochemical equation for the reaction. Calculate ΔHf° for calcium cyanamide 

check_circle

Expert Answer

Step 1

Given that calcium carbonate reacts with ammonia to form solid calcium cyanamide and also given that reaction absorbs 90.1 k J of heat. The balanced equation for the reaction is,

Chemistry homework question answer, step 1, image 1

Step 2

Given the reaction and standard enthalpy of formation of reactant and reaction and using these values, enthalpy of formation for the given product can be determined.

Chemistry homework question answer, step 2, image 1

...

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.

Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: What is the energy of a photon of light with a wavelength of 2.00cm?

A: Given that,

question_answer

Q: Calculate the boiling point of a solution of 400 g of ethylene glycol dissolved in 400 g of water Kf...

A: Molality of solution can be calculated as follows:

question_answer

Q: What is the mass, in grams, of 9.43×1024 molecules of methanol (CH3OH)?

A: Calculate for number of moles of CH3OH: 1 mole of any substance contains 6.022×1023 units (namely mo...

question_answer

Q: needing help with metric to metric conversions with Chemistry 110...   650Gg to kg 0.650cL to dL

A: The conversion of Gigagram (Gg) to kilogram (kg) is shown below.

question_answer

Q: iment-take&takeAssignmentSessionLocator-Dassignment-take ctice Question-Determine jon charges from f...

A: The compounds that are solid in nature and composed of cations and anions are known as ionic solids....

question_answer

Q: Need some explanation on these

A: Since there are multiple questions, we are authorized to answer only the first question, that is, no...

question_answer

Q: I need help with number 3 thank you

A: The Gibbs free energy can be defined as a thermodynamic potential which is used to calculate the max...

question_answer

Q: A solution of propanol (C3H7OH, Pº = 21.2 torr) and heptane (C7H16, Pº = 46.3 torr) in which the mol...

A: The correct option is a). Mole fraction of Propanol  = 0.9 Partial pressure of  Propanol =21.2 torr ...

question_answer

Q: On a trip of 834 miles, an automobile consumed 35.5 gallons of gasoline costing $4.25 per gallon. Wh...

A: Given: Miles travelled on a trip = 834 miles Gasoline consumed = 35.5 gallon Cost per gallon = $4.25