Current Attempt in Progress When 5.64 g of a solid mixture composed of NH,Cl and CaCl, was dissolved in 100.0 ml of water, the temperature of the water rose by 4,98°C. How many grams of each substance was in the mixture? Include the mass of salts in calculation of heat generated. g NH,CI - 8 CaCl,-

Current Attempt in Progress When 5.64 g of a solid mixture composed of NH,Cl and CaCl, was dissolved in 100.0 ml of water, the temperature of the water rose by 4,98°C. How many grams of each substance was in the mixture? Include the mass of salts in calculation of heat generated. g NH,CI - 8 CaCl,-

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Answer the attached photo and show all relevant solutions.
find the heat of reaction of NH3(g) + HCI(g) -------> NH4CI(S)
In a coffee cup calorimeter, 50.0 mL of 1.00 M NaOH and 50.00 mL of 1.00 M HCl are mixed. Both solutions were originally at 24.6 C. After the reaction, the final temperature is 31.3 C. Given that the density of NaCl solution is 1.038 g/mL and the specific heat of NaCl solution is 3.87, calculate the change in enthalpy of neutralization per mole for the reaction of HCl with NaOH. Assume that no heat is lost to the surroundings.
When 17.98 g of calcium chloride (CaCl2) is dissolved in 681.87 g of water in a coffee-cup calorimeter at 26.4°C, the temperature increased to 28.4 °C. Assuming that the specific heat of the mixture is the same as the specific heat of pure water (4.184 J/g-°C), calculate the AH (in kJ/mol CaCl2) in the dissolution process. MW of CaCl2 = 110.9g/mol CaCl2 (s) →→ Ca+2 (aq) + 2 CI¯ (aq) Show your complete solution. Express your answer in two decimal places.
300.00 mL of 0.200 M aqueous KOH neutralizes 150.00 mL of aqueous 0.200 M H2SO4. If the initial temperature is 22.3 C and it rises to 29.2 C determine the molar heat fro the neutralization of KOH. Express your answer kj/mole KOH. The specific heat of solution is 4.190 J/g C. Assume the density of the solution is 1.00 g/mL
Macmillan Learning In a constant-pressure calorimeter, 55.0 mL of 0.330 M Ba(OH), was added to 55.0 mL of 0.660 M HCI. The reaction caused the temperature of the solution to rise from 24.25 °C to 28.75 °C. If the solution has the same density and specific heat as water (1.00 g/mL. and 4.184J/g °C.) respectively), what is AH for this reaction (per mole H₂O produced)? Assume that the total volume is the sum of the individual volumes. AH = kJ/mol H₂O
Need solution to all parts urgently
When the Cacl2(s) is added to water, the following reaction occurs. Cacl (s) – Ca²"(aq) + 2CI"(aq) AH = - 81.5 kJ A 24.1 g sample of Caclz is dissolved in water, with both substances at 25.0 °C. Calculate the final temperature (in °C) of the solution assuming no heat is lost to the surroundings, the final solution, containing Cacl2 and water, has a mass of 100.0 g and the solution has a specific heat capacity of 4.18 J °c-lg-1. The molar mass of CaCl2 = 110.98 g/mol Do not include units in your answer, If you round during your calculations make sure to keep at least 3 decimal places. Report your answer to one (1) decimal place. Answer: 59.0 The correct answer is: 67.3
3.15 mol of an unknown solid is placed into enough water to make 150.0 mL of solution. The solution's temperature increases by 19.21°C. Calculate AH for the dissolution of the unknown solid. (The specific heat of the solution is 4.18 J/g-°C and the density of the solution is 1.20 g/mL).
Use the References to access important values if needed for this question. A student determines the heat of dissolution of solid potassium bromide using a coffee-cup calorimeter of negligible heat capacity. When 6.36 g of KBr(s) is dissolved in 115.00 g of water, the temperature of the solution drops from 25.00 to 22.71 °C. Based on the student's observation, calculate the enthalpy of dissolution of KBr(s) in kJ/mol. Assume the specific heat of the solution is 4.184 J/g°C. AHdissolution = kJ/mol Submit Answer 5 question attempts remaining
Question 17 of 35 Submit When 1.151 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the temperature of the calorimeter increases from 22.41°C to 26.63°C. If the heat capacity of the calorimeter is 4.900 kJ/°C, what is the heat of combustion of sucrose? kJ/mol 1 3 4 C 7 +/- x 10 0 Tap here or pull up for additional resources LO 00
4