ZuoTi.Pro
Question

A piece of zinc of mass 15.0 g is dropped into an open beaker filled with...

A piece of zinc of mass 15.0 g is dropped into an open beaker filled with excess dilute hydrochloric acid. Calculate the work done by the system as a result of the reaction. The atmospheric pressure is 1.05 atm and the temperature 23.5 °C. ​

science   chemistry   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

m ö 0,229 mola 아 H2 T = 23.5 cc : 27665 k 5-311 L of H2.. n Vol -1.05 X 5.311 ami lay

0 0
Add a comment
Know the answer?
Add Answer to:
A piece of zinc of mass 15.0 g is dropped into an open beaker filled with...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

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

  • 2. A strip of magnesium of mass 15g is dropped into a beaker of dilute hydro-...

    2. A strip of magnesium of mass 15g is dropped into a beaker of dilute hydro- chloric acid. Calculate the work done by the system as a result of the reaction The atmospheric pressure is 1.0 atm and the temperature 25°C

  • Brass is a metallic alloy of copper and zinc. The relative percentages of copper and zinc...

    Brass is a metallic alloy of copper and zinc. The relative percentages of copper and zinc determine the properties of the brass; resistance to corrosion and malleability, for example, are dependent on the relative amounts of copper and zinc. The percentage of zinc within a sample of brass may be determined using the techniques encountered in this experiment. 1. A 0.3400 g piece of brass is allowed to react with hydrochloric acid at the base of eudiometer. The hydrogen gas...

  • A sample of zinc metal is allowed to react completely with an excess of hydrochloric acid:...

    A sample of zinc metal is allowed to react completely with an excess of hydrochloric acid: Zn(s) + 2 HCl(aq) → ZnCl2(aq) + H2(8) look GO The hydrogen gas produced is collected over water at 25.0°C. The volume of the gas is 8.90 L, and the atmospheric pressure is 0.951 atm. Calculate the amount of zinc metal in grams consumed in the reaction. rint rences (Vapor pressure of water at 25°C = 23.8 mmHg.) gZn

  • Q2 part1. Hydrogen gas can be readily prepared by reacting zinc metal with hydrochloric acid: Zn(s)...

    Q2 part1. Hydrogen gas can be readily prepared by reacting zinc metal with hydrochloric acid: Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g) A sample of zinc metal was decomposed in hydrochloric acid and the hydrogen gas was collected over water. The volume of gas collected is 0.798 L at 25oC and a total pressure of 735 torr. How many grams of zinc were decomposed assuming there is an excess of hydrochloric acid? [Hint: the vapor pressure of water at 25oC...

  • Hydrogen gas was produced by reacting 0.976 g of zinc metal with excess hydrochloric acid. Write...

    Hydrogen gas was produced by reacting 0.976 g of zinc metal with excess hydrochloric acid. Write a balanced reaction equation (include states). If 376 mL of hydrogen gas is collected over water at 25 °C at a total pressure of 751 mm Hg, what was the experimental molar mass of Zn? 1. Write a balanced reaction equation (include states). 2. What was the experimental molar mass of Zn? Answer to the correct number of significant figures. 3. Calculate the %...

  • 1. A 20.0-8 piece of aluminum at 0.0°C is dropped into a beaker containing 100.0 g...

    1. A 20.0-8 piece of aluminum at 0.0°C is dropped into a beaker containing 100.0 g of water. The temperature of the water drops from 90.0°C to 85.7°C. What quantity of energy did the aluminum absorb? What is the specific heat of the aluminum? 2. If 55.0 ml of water at 22.5°C is mixed with 100.0 ml of water at 95.2 'C, what would you expect for a final temperature? 3. Cold packs (the kind that get cold when you...

  • 1. A steel cylinder has a volume of 15.0 L. It is filled with 50.0 g...

    1. A steel cylinder has a volume of 15.0 L. It is filled with 50.0 g of N2 gas at 25 0C. What is the pressure of N2 gas in the cylinder.? R = 0.0821 L-atm/mol-K; 1 mole N2 gas = 28.0 g N2 gas 2. T/F Carbon dioxide gas formation when CaCO3 reacts with acid is one evidence of chemical change. 3. T/F In a reaction equation the arrowhead always points to the products.

  • please do all. thanks. 1.   a. A weather balloon is filled to the volume of 105...

    please do all. thanks. 1.   a. A weather balloon is filled to the volume of 105 L on a day when the temperature is 25°C. If no gases escaped, what would be the volume of the weather balloon after it rises to an altitude where the temperature is -9°C? Volume = L? b A 203-mL sample of a gas exerts a pressure of 2.55 atm at 19.5°C. What volume would it occupy at 1.85 atm and 190.°C? Volume = ?mL...

  • Modern pennies are composed of zinc coated with copper. A student determines the mass of a...

    Modern pennies are composed of zinc coated with copper. A student determines the mass of a penny to be 2.484 g and then makes several scratches in the copper coating (to expose the underlying zinc). The student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the HCl (the copper remains undissolved): Zn(s)+2HCl(aq)→H2(g)+ZnCl2(aq) The student collects the hydrogen produced over water at 25 ∘C. The collected gas occupies a volume of 0.899 L...

  • 3. (2 marks) Fill in the data table: mass of beaker (9) mass of beaker plus...

    3. (2 marks) Fill in the data table: mass of beaker (9) mass of beaker plus copper oxide () mass of copper oxide (g) 57.8699 57.589 0.al 54.5139 0.1444 mass of beaker plus copper (8) mass of copper obtained (g) mass of oxygen in the copper oxide () 0.0019 Interpretation of Results and Conclusions 4. (3 marks) Calculate the observed percentage composition of your copper oxide. Show your calculations. From this result, deduce which pure oxide you were given. Elements...

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