The zinc within a copper-plated penny will dissolve in, Ask an Expert

Academics

The zinc within a copper-plated penny will dissolve in hydrochloric acid if the copper coating is filed down in several spots (so that the hydrochloric acid can get to the zinc). The reaction between the acid and the zinc is:

Zn (s) + 2 HCl (aq) ZnCl2 (aq) + H2 (g)

When the zinc in a certain penny dissolves, the total volume of gas collected over water at 25.0 °C was 0.951 L at a total pressure of 748 mmHg. What mass of hydrogen gas was collected?

View complete question

Chemistry, Academics

Category:- Chemistry
Reference No.:- M9875648

Have any Question?Write your Review or question?

Related Questions in Chemistry

A hydrogen atom emits a photon as its electron changes from

A hydrogen atom emits a photon as its electron changes from n = 5 to n = 2. For the H atom, E n = -2.18E-18*(1/n 2 ) J. What is the wavelength (in m) of the photon? ( ) m The number of significant digits is set to 3; t ...

What could a source of error be during a titration lab that

What could a source of error be during a titration lab that is not a humans fault?

How many grams of nitrogen are found in 500 grams of

How many grams of nitrogen are found in 50.0 grams of potassium nitrate?

Calculate the volume in milliliters of a 0616m barium

Calculate the volume in milliliters of a 0.616M barium chlorate solution that contains 475.mmol of barium chlorate (Ba(ClO3)2). Round your answer to 3 significant digits.

Does dissolved solids such as sugar and salt modifychange

Does dissolved solids such as sugar and salt modify/change the boiling point of water; do mixtures have the same boiling point as pure substances?

At rest a person inhales 9721021 nitrogen molecules in an

At rest, a person inhales 9.72*10^21 nitrogen molecules in an average breath of air. How many mole of nitrogen atoms are inhaled? (Hint: in air, nitrogen occurs as a diatomic molecule)

A 200 ml sample of 0200 m hbr solution is titratedwith 0200

A 20.0 mL sample of 0.200 M HBr solution is titratedwith 0.200 M NaOH solution. Calculate the pH of the solution after the following volumes of base have been added. (19.8 mL)

A paint contains 1800 ppm lead approximately what mass of

A paint contains 180.0 ppm lead. Approximately what mass of lead will be in 1.00 cm ^3 of this paint when 1.00 gal is uniformly applied to 445.0 ft 2 of a wall. The density of the paint is 8.00 lb/gal.

Hydrazine n2h4 is dibasic and has kb1nbsp 335x10-7nbspand

Hydrazine, N2H4, is dibasic and has Kb1 = 3.35x10-7 and Kb2 = 1.42x10-16. Calculate the concentration of OH- ions in a 29.91 M aqueous solution of hydrazine. Express your answer in mM.

The earth receives radiation from the sun at the top of the

The Earth receives radiation from the Sun at the top of the atmosphere with a spectrum that resembles a blackbody emitter at a temperature of nearly 6000 K, although the temperature inside the Sun is about 15 million K. ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Chemistry Expert