Question

Metal: Zn mass of metal cylinders: 69.5694 g mass of calorimeter: 1.8865 g mass of calorimeter...

Metal: Zn mass of metal cylinders: 69.5694 g

mass of calorimeter: 1.8865 g

mass of calorimeter + H2O: 42.1548

Tm(°C): 98.3

Ti(°C): 17.5

Tf(°C): 23.2

ΔHprocess (kJ): ? Find the enthalpy change in kJ

0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
Metal: Zn mass of metal cylinders: 69.5694 g mass of calorimeter: 1.8865 g mass of calorimeter...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • 1.  How much heat is needed to raise the temperature of 1.50 g of aluminum metal from...

    1.  How much heat is needed to raise the temperature of 1.50 g of aluminum metal from 23.2 °C to                 30.5 °C?  (Specific heat capacity of aluminum is 0.90 J/g-K). 2.  Given the following thermochemical equation:          DH = -1107 kJ               How many kJ of heat are released when 15.75 g of Ba(s) reacts completely with oxygen to    form BaO(s)?                 3.            Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8). When 1.25 g    naphthalene is burned in a bomb calorimeter, the temperature rises from 25.25...

  • A solution containing 2.610 g of CuSO_4.5H_2O (molar mass 249.7 g mol^-1) is completely reacted with...

    A solution containing 2.610 g of CuSO_4.5H_2O (molar mass 249.7 g mol^-1) is completely reacted with excess Zn metal in a constant pressure calorimeter, according to: Cu^2 + + Zn rightarrow Cu + Zn^2 + (a) Determine delta H for the reaction as written above if a temperature change of 4.319 K is measured in the reaction mixture. Assume that the combined heat capacity of the calorimeter and solution is 526.37 J K^-1. (b) Is the enthalpy change determined in...

  • a 2.49 g sample of cadmium metal completely reacts when placed in a coffee cup calorimeter...

    a 2.49 g sample of cadmium metal completely reacts when placed in a coffee cup calorimeter that contains 75.0ml of a dilute solution of sulfuric acid ( density 1.03g/ml) to produce H2 gas and dissolved cadmium sulfate. The chemical reaction is exothermic with delta T from 21.5degrees C to 32.5C a) balanced equation- b)find enthalpy change(kJ/mol) for reaction,specific heat of reslting solution 4.18J/(gC) and assuming calorimeter is not involved in any heat exchange

  • experiment 1: determination of specific heat of a metal Data Sheet Table 2. Mass Mass (g)...

    experiment 1: determination of specific heat of a metal Data Sheet Table 2. Mass Mass (g) Water 49.2 g Unknown Metal Strip 9.6 g Table 3. Temperature Data Time Temperature (°C) Trial 1 Temperature (°C) Trial 2 Temperature (°C) Trial 3 Initial Temp Water (Ti (water)) 16 C 17 C 17 C Initial Temp Metal (Ti (metal)) 76 C 86 C 85 C 1 minute 17 C 17 C 17.5 C 2 minutes 17 C 17 C 17.5 C 3...

  • A 2.490-g sample of cadmium metal completely reacts    when placed in a coffee cup calorimeter that...

    A 2.490-g sample of cadmium metal completely reacts    when placed in a coffee cup calorimeter that contains 75.0 mL of a dilute sulfuric acid solution (aqueous) (density of 1.03 g/mL) to produce hydrogen gas and dissolved cadmium sulfate.  The chemical reaction is exothermic causing the temperature of the resulting aqueous solution to change from 21.5oC to 32.5oC.   Write a balanced chemical equation for the chemical reaction that occurs. Find the enthalpy change, in kJ/mol, for the chemical reaction, assuming the specific...

  • Metal oxides can be reduced with hydrogen gas to give the metal. H2(g) ZnO(s) H2O(g) +Zn(s)...

    Metal oxides can be reduced with hydrogen gas to give the metal. H2(g) ZnO(s) H2O(g) +Zn(s) Compound Ha(g) Zno AH(kJ/mol) AG (kJ/mol) S (J/Kemol) 130.7 -348.3 43.6 -318.3 H2O(g) Zn(s) -241.8 188.8 -228.6 41.6 What is the entropy change for the reaction? Errent 13 56.1 J/K 2. -56.1 J/K Cacb180.8)- (u 190.) 3. 404.7 J/K 43.6 J/K 4. Metal oxides can be reduced with hydrogen gas to give the metal. H2O(g) +Zn(s) H2(g)+ZnO(s) AG (kJ/mol) AH (kJ/mol) S(J/Kemol) 130.7 Compound...

  • Determination of Standard Enthalpy of Solution of NaOH in Acid Mass of NaOH and bottle (g)...

    Determination of Standard Enthalpy of Solution of NaOH in Acid Mass of NaOH and bottle (g) 8.80 Mass of bottle (g) 6.90 Mass of NaOH (g) 1.90 Mass of calorimeter and solution (g) 61.20 Mass of calorimeter (g) 9.07 Mass reaction mixture (g) 52.13 Time (min) Temperature (°C) Time (min) Temperature (°C) 1 24.2 11 42.0 2 24.2 12 41.5 3 24.2 13 41.0 4 24.2 14 40.6 5 24.2 15 40.1 6 34.3 16 39.7 7 42.4 8 43.6...

  • 1. Prepare for It! Prelab Question A A 235.0 g sample of metal is heated to...

    1. Prepare for It! Prelab Question A A 235.0 g sample of metal is heated to 100.0°C and poured into a calorimeter containing 50.0 g of water at 20.5°C. The equilibrium temperature of the water and metal is 30.5°C. Using the specific heat of water, 4.18 J/g C, determine the specific heat of the metal from equation 3. Use equation 5 to find the approximate molar mass of the metal. Show your work! Use back if needed. 2. Prepare for...

  • Part A: A calorimeter contains 26.0 mL of water at 13.0 ∘C . When 2.10 g...

    Part A: A calorimeter contains 26.0 mL of water at 13.0 ∘C . When 2.10 g of X (a substance with a molar mass of 49.0 g/mol ) is added, it dissolves via the reaction X(s)+H2O(l)→X(aq) and the temperature of the solution increases to 25.0 ∘C . Calculate the enthalpy change, ΔH, for this reaction per mole of X. Assume that the specific heat of the resulting solution is equal to that of water [4.18 J/(g⋅∘C)], that density of water...

  • Part A A calorimeter contains 34.0 mL of water at 12.5 ∘C . When 1.50 g...

    Part A A calorimeter contains 34.0 mL of water at 12.5 ∘C . When 1.50 g of X (a substance with a molar mass of 75.0 g/mol ) is added, it dissolves via the reaction X(s)+H2O(l)→X(aq) and the temperature of the solution increases to 25.5 ∘C . Calculate the enthalpy change, ΔH, for this reaction per mole of X. Assume that the specific heat of the resulting solution is equal to that of water [4.18 J/(g⋅∘C)], that density of water...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT