What is the deltah in kj/mol of cacl2 dissolved

Assignment Help Chemistry
Reference no: EM13831591

When 5.0g of CaCl2 was dissolved in 50 ml of water in a coffee cup calorimeter, the temperature of the solution rose from 22.3C to 30.5C. What is the qsoultion in J and what is the qrxn in J?

What is the deltaH in kJ/mol of CaCl2 dissolved?

Reference no: EM13831591

Questions Cloud

What are the advantages of using gis in market segmentation : One of the most exciting advances in market segmentation is the increasing use of geographic information systems (GIS) to map target markets. What are the advantages of using GIS in market segmentation
What is the yield to maturity : 1 Sentry Cop. Bonds have a coupon payment of 7.25%. The bonds have a par value of $1000, a current price of $1125, and they will mature in 13 years. a)What is the yield to maturity on these bonds if it pay coupon annually? b) What is the yield to mat..
What would be the units of measure for the sample : What would be the units of measure for the sample
Question regarding the international faux pas : Do an Internet search on international faux pas. Read about behaviors that are rude or inconsiderate in other cultures that you might not find offensive at all.
What is the deltah in kj/mol of cacl2 dissolved : What is the deltaH in kJ/mol of CaCl2 dissolved
Capital project data : Suppose you believe that Johnson Company's stock price is going to increase from its current level of $22.50 sometime during the next 6 months.  For $250.30 you can buy a 6-month call option giving you the right to buy 100 shares at a price of $25 pe..
Compare and contrast two megacities : Compare and contrast 2 megacities. In your own words answer the question, "Can the earth support all of these megacities?" How do you foresee environmental problems such as water, air pollution, and climate change in urban areas? What does a sust..
Calculate your opportunity costs of sitting in class : Think about what you would be doing if you weren’t in class. The alternatives are infinite and computing the cost of them all is impossible. However, since you could only be doing one thing (not all of them) if you were not in class, determining the ..
Difference between a firm''s cash cycle : a. What is the difference between a firm's cash cycle and its operating cycle? b. How will a firm's cash cycle be affected if a firm increases its inventory, all else being equal? c. How will a firm's cash cycle be affected if a firm begins to take t..

Reviews

Write a Review

Chemistry Questions & Answers

  Evaluate the ph of the resulting solution

Consider the titration of 100ml of .100M H2NNH2 (Kb=3.0*10^-6) by .200 M HNO3. Calculate the pH of the resulting solution after the following volumes of HNO3 have been added

  Explain naf is mixed with ba(no3)2 precipitate form

The Ksp for BaF2 is 2.4 x 10-5. When 10 mL of 0.01 M NaF is mixed with 10 mL of 0.01 M Ba(NO3)2, will a precipitate form

  What mass of oxygen will react

What mass of oxygen will react with 2.64g of magnesium? 2Mg(s)+O2(g)-->MgO(s)

  Calculate the number of moles of solute present

Calculate the number of moles of solute present in 50.0mg of aqueous solution that is 1.25 molality NaCl.

  The first step in the citric acid cycle of food metabolism

The first step in the citric acid cycle of food metabolism is reaction of oxaloacetate with acetyl CoA to give citrate. Propose a mechanism, using acid or base catalysis as needed. Oxaloacetate + Acetyl CoA ----> Citrate

  Calculate the solubility of caoh2 in a 0469m cacl2 solution

calculate the solubility of caoh2 in a 0.469m cacl2 solution at 31degc given that the ksp of caoh2 is 4.96 x 10-6 at

  Which component of the mixture dissolved in the acetone

An unknown solid mixture containing benzoic acid,copper(II)sulfate and sand. She added 15mL.of acetone to her sample. Which component of the mixture dissolved in the acetone?

  State an aqueous copper sulfate solution is electrolyzed

An aqueous copper(II) sulfate solution is electrolyzed for 3 hours with a 1.8 ampere current

  Compute the ph of the subsequent solutions

Compute the pH of the subsequent solutions. In every case ignore the effects of ionic strength as well as assume that a(i)=c(i)

  Explain the density of a piece of ebony wood

The density of a piece of ebony wood is 1.174 g/ml. What is the volume in quarts of a 2.1549lb piece of this ebony wood

  Explain how much hexanes would be required to remove

What weight of A would be removed from the same solution by successive extraction with four portions of 25mL of hexanes? How much hexanes would be required to remove 98.5% of A in single extraction?

  Compute the theoretical yield of the reaction

the final product was dibenzalacetone. Calculate the theoretical yield of this reaction.

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