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2 years ago

Correct first answer= Brianliest!PLEASE WOULD REALLY APPRECIATE IF YOU’D HELP ME OUT:’(

Chemistry

1 answer:

sveticcg [70]2 years ago

3 0

Answer:

The answer to your question is: 2 grams of methane

Explanation:

Data

V = 9.15 l

P = 1.77 atm

T = 57° C = 330 °K

Ar mass = 19 g

CH4 mass = ?

Formula

PV = nRT

Process

$n = \frac{PV}{RT}$

$n = \frac{(1.77)(9.15)}{(0.082)(330)}$

$n = \frac{16.26}{27.06}$

n = 0.6

Argon

40 g of Ar -------------------- 1 mol

19 g --------------------- x

x = 0.475 mol of Ar

moles of CH4 = 0.6 - 0.475

= 0.125

Methane

16 g of CH4 --------------- 1mol

x ---------------- 0.125 mol

x = 2 grams

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6 0

2 years ago

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zavuch27 [327]

Answer:

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A certain half-reaction has a standard reduction potential E0red = +0.13V . An engineer proposes using this half-reaction at the

Ivan

Answer:

a. 1.23 V

b. No maximum

Explanation:

Required:

a. Is there a minimum standard reduction potential that the half-reaction used at the cathode of this cell can have?

b. Is there a maximum standard reduction potential that the half-reaction used at the cathode of this cell can have?

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