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Romashka-Z-Leto [24]
3 years ago
5

The atomic mass of 13C is 13.003355. Multiply the atomic mass of 13C by its abundance. Report the number to 8 significant digits

.
Chemistry
1 answer:
arsen [322]3 years ago
4 0

Answer is: number is 0.14303691.

Carbon-13 (¹³C) is a stable isotope of carbon with mass number 13, it has six protons and seven neutrons.

Isotopes are chemical elements with same atomic number, but different mass number (different number of neutrons).

ω(¹³C) = 1.10% ÷ 100%.

ω(¹³C) = 0.0110; abundance of carbon-13 in nature.

m(¹³C) = 13.003355; the atomic mass of carbon-13.

ω(¹³C) · m(¹³C) = 0.0110 · 13.003355.

ω(¹³C) · m(¹³C) = 0.14303691.

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What is the percent by mass of nahco3 in a solution containing 10 g of nahco3 dissolved in 400 ml of h2o?
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m(H₂O) = V(H₂O) · d(H₂O).
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7 0
3 years ago
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4 years ago
When a negatively charged species is most appropriately depicted as a hybrid of several resonance forms, the negative charge pre
Varvara68 [4.7K]

Answer:

True

Explanation:

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5 0
3 years ago
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