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Alex777 [14]
2 years ago
7

can someone please help me with this, I did it and I got 54 the answer, but 54 isn't an answer choice​

Mathematics
1 answer:
const2013 [10]2 years ago
8 0
I think the awnser is 60
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Enter your answer in the provided box. what is the emf of a cell consisting of a pb2 / pb half-cell and a pt / h / h2 half-cell
s2008m [1.1K]

The emf of a cell is mathematically given as

E_{cell}  = 0.0532 v

<h3>What is the emf of a cell?</h3>

Generally, the equation for emf  is mathematically given as

Pb/Pb^2^+ //\ H / H_2

where,

Pb is lead

H is hydrogen

Pb^{2+} / Pb has a standard reduction potential of -0.126 volts, while

H_2 / H_2 has a standard reduction potential of 0.0 volts.

E_{cell }= E^0_{cell} - 0.059/n log 1/[Pb^2^+] x [H^+]^2

E_{cell} = 0.126 -  0.059/2 log 1  /  [0.57] x [0.09]^2

E_{cell}  = 0.0532 v

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6 0
2 years ago
Find the root of 11+2square30
EleoNora [17]

\\ \sf\longmapsto \sqrt{11+2^230}

\\ \sf\longmapsto \sqrt{11+4(30)}

\\ \sf\longmapsto \sqrt{11+120}

\\ \sf\longmapsto \sqrt{131}

\\ \sf\longmapsto 11.3

5 0
2 years ago
Tell whether ΔABC and ΔDCB can be proven congruent.
Vikentia [17]

Answer:

D. No, there isn’t enough information because only two pairs of corresponding sides can't be used to prove that two triangles are congruent.

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2 years ago
What do the common denominator of 512 and 2/5​
Margarita [4]
2560/5 would be 512 as a fraction with the same denominatir
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3 years ago
Maria is ordering copy paper for her office. The office is low on white paper and on blue paper. She will play 3.50 per ream of
m_a_m_a [10]
So we know that the decimal place will move one right. Well basically let's assume she could have bought these expressions:

x 10 x 3.50 = 35.00
x 9 x 3.50 = 31.50 + 3.75 = 35.25
x 8 x 3.5 = 28 + 3.75 x 2 = 35.5
x 7 x 3.5 = 24.5 + 3.75 x 35.75

We know that there is a pattern. See how the cents goes .25 up each time. So we know she'd buy 6 reams of white because (6 x 3.5 = 21) + (4 x 3.75 = 15) = 36.
8 0
3 years ago
Read 2 more answers
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