Compute the change in temperature

Assignment Help Chemistry
Reference no: EM13130170

Compute the change in temperature when 1.8 g of sodium chloride is dissolved in 300.0 mL of water initially at 20C. The heat capacity of water is 4.184 J/mL/K. Neglect the heat capacity of the NaCl.
Species fH (kJ/mol)
NaCl(aq) -407.3
NaCl(s) -411.2

Reference no: EM13130170

Questions Cloud

Recognition of the gain : Justings Co. owned 80% of Evana Corp. During 2006, Justings sold to Evana land with a book value of $48,000. The selling price was $70,000. In its accounting records, Justings should:
What is the minimum volume of hbr required : What is the minimum volume of 2.6 M HBr required to completely dissolve 25.0 g of potassium metal?
Illustrate weighted-average contribution margin ratio : The sales mix (as a percent of total dollar sales) of its three product lines is: birthday candles 30%, standard tapered candles 50%, and large scented candles 20%. Illustrate w hat is the weighted-average contribution margin ratio?
Reproductive capabilities of vulnerable populations : Forced sterilization is possibly one of the greatest affronts to individual autonomy, as the permanent impairment of one’s ability to reproduce not only robs the individual of their natural ability to procreate, but denies them a future genetic ..
Compute the change in temperature : Compute the change in temperature when 1.8 g of sodium chloride is dissolved in 300.0 mL of water initially at 20C. The heat capacity of water is 4.184 J/mL/K.
Explain kind of data to assess pain using emoticons : When students go to the Health Center these days complaining of pain, they are asked to assess their pain using emoticons. One person's assessment is an example of what kind of data?
Determine the interest rate that applies relative to amount : Gordon paid the $10000 balance of his federal income tax three months late. Ignore daily compounding of interest. Determine the interest rate that applies relative to this amount.
Basics of straight-line depreciation : Straight-line depreciation is used. Demers reported net income of $28,000 and $32,000 for 2006 and 2007, respectively. Compute the gain recognized by Demers Company relating to the equipment for 2006:
Peaks would expect to find in the nmr spectrum of caffeine : How many peaks would you expect to find in the NMR spectrum of caffeine? What characteristic absorption bands would you expect to find in the infrared spectrum of caffeine?

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate the number of moles of cl atoms

Calculate the number of moles of Cl atoms in 1.20×1024 of magnesium chloride, MgCl2.

  What is the molarity of the solution

A solution is prepared by dissolving 179 g sucrose (C12H22O11) in enough water to produce 1.15 L solution. What is the molarity of this solution?

  What is volumetric flow rate out of the hole

Tank full of water (H2O)is open at the top with the hole near the bottom the area of which is 0.25 m^2 and the cross section area of the tank =1 m^2 determine what is volumetric flow rate out of the hole.

  What is the final temperature of the calorimeter contents

A bomb calorimeter whose components have a heat capacity of 6.66 kJ/°C is filled with 913 g of water. (The amount of water is not constant from experiment to experiment.

  Calculate [h+], [oh -], and the ph for this solution

A solution is prepared by mixing 63.0 mL of 5.00 M HCl and 20.0 mL of 8.00 M HNO3. Water is then added until the final volume is 1.00 L. Calculate [H+], [OH -], and the pH for this solution.

  How high (in meters) can the person climb

43 kg person drinks 410. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 18% of the energy in milk is converted to mechanical work.

  Define what is the the structures of products

What is the the structures of both products and how can you distinguished them using IR spectroscopy?

  How many grams of chromium will be plated

Chromium metal can be plated from an acidic solution of CrO3. CrO3(aq) + 6H+(aq) + 6e- Cr(s) + 3H2O How many grams of chromium will be plated by the passage of 19,300 C (coulombs).

  Calculate the ph of the solution

Determine the calculated pH of the solution if initially there is 2.0mL of CH3COOH at an initial concentration of 0.89M and 0.80mL of 1.0M Hydrochloric Acid is combined.

  What volume of 0.45 m hcl solution would be needed

For the reaction 2 HCl + Na2CO3 → 2 NaCl + H2O + CO2 what volume of 0.45 M HCl solution would be needed to produce 2.5 L of CO2 at STP

  Calculate the equilibrium partial pressures of co2 and co

At 700.°C, the total pressure of the system is found to be 3.45 atm. If the equilibrium constant KP is 1.52, calculate the equilibrium partial pressures of CO2 and CO.

  Calculate the molar solubility of this compound

The Ksp for PbBr2 = 8.9 x 10^-6. Calculate the molar solubility of this compound on a .20M Pb(NO3)2.

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