What mass of this substance must evaporate

Assignment Help Chemistry
Reference no: EM13128047

What mass of this substance must evaporate in order to freeze 150g of water initially at 15C? (The heat of fusion of water is 334J/g the specific heat of water is 4.18J/g*K.)

Reference no: EM13128047

Questions Cloud

Explain description of alkene halogenation : Description of Alkene Halogenation, What is the major product formed when 1-pentene is reacted with br2 in aqueous solution and why?
Applications of derivatives : An isosceles triangle whose base is the interval from (0,0) to (c,0) has its vertex on the graph of f, where f(x)=12-x^2 for x is greater than or equal to 0 and f(x) is greater than or equal to 0.
Identification of favorable and unfavorable variances : Why is the identification of favorable and unfavorable variances so important to a company? How can the identification of the variances help management control costs?
Inflation rate and rule of 70 : What is the "rule of 70"? How long would it take for the price level to double if inflation persisted at (a) 2, (b) 5, and (c) 10 percent per year?
What mass of this substance must evaporate : What mass of this substance must evaporate in order to freeze 150g of water initially at 15C? (The heat of fusion of water is 334J/g the specific heat of water is 4.18J/g*K.)
How many expect to have cholesterol levels greater : Levels above 200 warrant attention. If 95 teenage boys are examined. How many would you expect to have cholesterol levels greater than 225.
Illustrate what is the journal entry should a government fun : Illustrate what is the journal entry should a government fund use to record $475,000 for police department salaries and wages during a particular month?
Explain how many types of nonequivalent protons : How many types of nonequivalent protons does the following compound contain
Determine the amount of retained earnings : a. Journalize the entries required to complete the closing of the accounts. b. Determine the amount of Retained Earnings at the end of the period.

Reviews

Write a Review

Chemistry Questions & Answers

  What is the molarity of a solution

What is the molarity of a solution of 12.0 g of NH4Br in enough H2O to make 240 mL of solution?Answer in units of M.

  How many grams of dry nh4cl need to be added

How many grams of dry NH4Cl need to be added to 1.80 L of a 0.800 solution of ammonia, NH3, to prepare a buffer solution that has a Kb of 8.87? for ammonia is 1.8E-5.

  What were principal quantum no of initial excited states

An electron in an excited state of a hydrogen atom emits two photons in succession, the first at 1817 nm and the second at 97.20 nm, to return to the ground state (n=1).

  What volume of carbon dioxide is measured

Propane reacts with excess oxygen to produce carbon dioxide gas and water. What volume of CO2,measured at 27.2 °C and 0.918 atm, is produced from the reaction of 10.1 g propane with excess oxygen.

  What volume of hydrogen at stp is produced

Mg +2HCl-> MgCl2 + H2 what volume of Hydrogen at STP is produced from the reaction of 50.0g and the equivalent of 75 g of HCl? Also, How much of the excess reagent is left over?

  Determine the density of solid krypton

Krypton crystallizes as a fcc (face centered cubic unit cell) having an edge length of 559 pm. What is the density of solid Krypton?

  Determine how much heat energy is needed

Determine How much heat energy, is needed to convert 64.0 grams of ice at -18.0 degrees Celsius to H 2 O at 25.0 Normal Temperature  ? express your answer in kilojoules

  How much iodine will remain after 7.68s

Molecular iodine, I2 (g), dissociates into iodine atoms at 625 K with a first-order rate constant of 0.271 s-1. If you start with 5.2x10^-2 M I2 at this temp.

  How many grams of naoh are contained

How many grams of NaOH are contained in 230.0 mL of a 0.800 M sodium hydroxide solution?

  How much will the ph change

A beaker with 185 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 6.70 mL of a 0.440 M HCl solution to the beaker.

  How much energy (in calories) is needed

The specific heat of fat is 0.45 cal/(g C) and the density of fat is 0.94g/cm^3 . How much energy (in calories) is needed to heat 10cm^3 of fat from room temperature (25 C) to its melting point (35 C).

  How much mass of the mix can be consumed

A particular snack mix contains 1.30 g of salt per 100 g of the mix. How much mass of the mix can be consumed and still be within the FDA limit of 2.40 g of salt.

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