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d1i1m1o1n [39]
3 years ago
12

How many moles in 4.3 x 1024 atoms of sodium (Na)?

Chemistry
1 answer:
wel3 years ago
3 0

Answer:How many ions are in 2 moles of NaCl?

2 mol NaCl = 2 x 6.02 x 10 23 = 1.204 x 10 24 NaCl formula units 2 mol NaCl = 2 (2 x 6.02 x 10 23 )= 2 (1.204 x 10 24) = 2.408 x 10 24 atoms *2 moles of sodium chloride contains 2.408 x 10 24 ions (combination of Na + ions & Cl – ions). H

Explanation:

sorry i was running out of time

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gastric juice (ph 1.5) is produced by pumping HCl from blood plasma (ph 7.4) into the stomach. Calculate the amount of free ener
maxonik [38]

Answer:

∆G = 35 KJ

Explanation:

The given data are as follows;

Gastric juice pH = 1.5

Blood plasma pH = 7.4

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However, pH = -log [H+]

Therefore, [H+] = 10^-pH

At pH of 1.5, [H+] = 10^-1.5 = 3.16 × 10^-2 M

At pH of 7.4, [H+] = 10^-7.4 = 3.98 × 10^-8 M

Using ∆G = RTln(C2/C1)

Where R = 8.314 J/mol/K;

T = 310 K;

C2 (concentration inside) = 3.16 × 10^-2 M;

C1 (concentration outside) = 3.98 × 10^-8 M

∆G = 8.314 × 310 × ln(3.16 × 10^-2 / 3.98 × 10^-8)

∆G = 35012.74

Therefore, ∆G = 35 KJ

7 0
3 years ago
Name the following Structure:
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Answer:

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Explanation:

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8 0
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Explanation:

The answer is 0.5 moles of gold

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The stored energy in a battery can BEST be described as:
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Chemical is the answer your looking for.
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How do you convert between the mass and the number of moles of a substance?
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