How much heat is needed

Assignment Help Chemistry
Reference no: EM13133023

How much heat is needed to convert 10.0 g of ice at -25.0ºC to water at 80.0ºC?

Data for H2O:
c(s) = 2.06 J/(ºC•g) = 37.1 J/(mol•K)
c(l) = 4.18 J/(ºC•g) = 75.3 J/(mol•K)
c(g) = 1.83 J/(ºC•g) = 33.1 J/(mol•K)
ΔH(fusion) = 0.33 kJ/g = 6.02 kJ/mol
ΔH(vap) = 2.22 kJ/g = 40.07 kJ/mol

 

Reference no: EM13133023

Questions Cloud

Determine location in the plane : Formulate a mathematical program that can be used to determine where the "hub" should be located in the plane. Clearly define your decision variables, objective and constraints
Exchange rate between the canadian dollar and the us dollar : Is the British Pound shown? If not, why not? (You might have to do some investigation online if you're not familiar with the history of European currency.)
College community : What will  you as a student bring to our College Community? intellectual interests and meaningful education or healthcare  awards;
Financial statements for a for-profit business : How does the audit opinion given to a city by its independent auditors differ from the audit opinion rendered on the financial statements for a for-profit business?
How much heat is needed : How much heat is needed to convert 10.0 g of ice at -25.0ºC to water at 80.0ºC?
Find probability that fish is exactly on level of accuracy : What is the probability that a fish is *exactly*, *precisely* to any level of accuracy or measurement, 12.0 inches long?
Vector space value functions : Confirm that (C ([a, b]) , II·II infinity ) where II f II infinity= max I f (x) I a
Sales revenue account on the post-closing trial balance : If the new clerk in the accounting department insists on including the sales revenue account on the post-closing trial balance, would you agree? Why, or why not?
Draw the structure of caffeine : Draw the structure of Caffeine. Skeletal form only. Locate 2 bonds in the molecule that are obviously polar covalent.

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate the ph of solution resulting from mixing together

Calculate the pH of a solution resulting from mixing together the following: a) 37ml of HCL 0.1M+33ml of NaOH 0.03M b) 55ml of HNO3 0,7M+88ml of KOH 0.8M c) 170 ml of H2SO4 0,44M_29ml of NaOH 1.2M d)76 liters of HBr 0.01M+2 liters of Mg(OH)2 2.1M.

  What is the maximum number of electrons would be ejected

when a metal was exposed to light at a frequency of 4.63*10^15 Hz, electrons were emitted with a kinetic energy of 3.10*10^-19 J.

  What is the empirical formula of the product

If 0.176 moles of Mg have combined with 0.220 moles of O, what is the empirical formula of the product?

  Determine what is the molar concentration of the nh3

Explain how hydrodewaxing, hydrocracking and hydroisomeriztion processing take place In base oil refining and also describe how aromatics (low volatile products) are converted to high quality base oil.

  What is the molarity of a solution

What is the molarity of a solution prepared by dissolving 13.1 g of glucose (of MW 180 amu) in 217 mL of solution?

  Explain products at home containing organic molecules

Products at Home Containing Organic Molecules, Find two or more products in the home that contain organic molecules. From these products, make a list of 10 organic compounds present in the products.

  Define ozonolysis and absorbs two moles of hydrogen

A compound, A, c6h8, yields a single organic product, B, upon ozonolysis and absorbs two moles of hydrogen on catalytic hydrogenation to give C

  What mass of sucrose(c12h22o11) should be combined

What mass of Sucrose(C12H22O11) should be combined with 456g of water to make a solution with an osmotic pressure of 8.05atm at 280K

  How many milimoles of base must be added

You have 50 mL of 0.010 fully protonated histidine. how many milimoles of base must be added to bring histidine solution to pH equivalent to the pI of histidine.

  What is the final concentration

55.0 mL of a 1.70 M solution is diluted to a volume of 278 mL. A 139 mL portion of that solution is diluted using 175 mL of water. What is the final concentration.

  What weight of pb(no2)2 wil have to be dissolved

What weight of Pb(NO2)2 wil have to be dissolved in one liter of water to prepare a 100ppm Pb2+ solution.

  Name this compound

The substance CS2 has a melting point of -110.8°C and a boiling point of 46.3°C. Its density at 20°C is 1.26 g / cm3. It is highly inflammable. a.)Name this compound.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd