Homework Answers
Molar mass of H2 = 2.016 g/mol
mass of H2 = 2 g
mol of H2 = (mass)/(molar mass)
= 2/2.016
= 0.9921 mol
According to balanced equation
mol of Zn reacted = moles of H2
= 0.9921 mol
Molar mass of Zn = 65.38 g/mol
mass of Zn = number of mol * molar mass
= 0.9921*65.38
= 64.86 g
Answer: 64.9 g
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thank you so much for your time!
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please solve for me as always!
Thanks you very much.
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Hello,
I need help with Problem 3.
Please show all the steps and the solutions of the problem.
Thank you very much.
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Hello,
I need help with Problem 2.
Please show all the steps and the solutions of the problem.
Thank you very much.
2" (10 points) Show that the image of the upper half plane H2-(2 E C : S(z) > 0} under the map C(z) = i is the disk D-{2E C : 2ti
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I would like help understanding these questions.
thank you so much for your time!
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please solve for me as always!
Thanks you very much.
Exercise 5.71 9 of 10 > Review Constants Periodic Table Part A 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 2H+ (aq) + Zn(s) + H2(g) + Zn²+ (aq). When the zinc in a certain penny dissolves, the...
Please show all the steps thank you very much
6. The one-dimensional wave function for a particle over all space... may be expressed as: 4, = Ae i(kx-ot) a) Apply the momentum and energy operators to ψ ( ie, pyr & EY) as to verify the following: pzhk and Eshω b) Substitute w into Schrödinger's equation...2m -2mārī = Ey as to verity the following: 2m ax
65 68 and for 71 please show steps. thank you
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please answer 1-5 and show and explain steps clearly, thank you
:)
1. How many milliliters of 13.2 MH.SO, are needed to prepare 600.0 mL of 0.10 M H SOC? (4.5 mL) 2. 1.60 L of an aqueous solution containing 25.00 g of KCl dissolved in pure water is prepared. What is the molarity of the resulting solution? (0.210 M) 3. A solution containing 292 g of Mg(NO3)2 per liter has a density of 1.108 g/mL. What is the molality...
please do these questions all of them first. thank you
so much.
DOCX - 151 KB your final answer!) Show work: 1. (3pts.) Complete and balance the nuclear equation n+ U Br +31+ 2. The equilibrium constant for the dissociation of Ag.CO,($) + 2 Ag+CO, 'Is K.-8.1 * 10" at 25°C. *) Calculate AG for the reaction when Ag 1 = 10 X 10M and CO, ' -1010 M (4pts) Ans: b) (pt) is the reaction spontaneous or nonspontaneous at...
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so I can work through it myself! Thank you very much!
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