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worty [1.4K]
3 years ago
11

When the mass of the boron atom is calculated, the mass of the electrons is ignored. Why is the mass of the electrons ignored?

Chemistry
2 answers:
nirvana33 [79]3 years ago
8 0
Answer. Because electron mass is so insignificant compared to proton and neutron mass that it CAN be ignored.
Pavel [41]3 years ago
5 0

Answer:

Because electron mass is so insignificant compared to proton and neutron mass that it can be ignored.

Explanation:

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Natural sources include decomposition, ocean release and respiration. Human sources come from activities like cement production, deforestation as well as the burning of fossil fuels like coal, oil and natural gas.

Explanation:

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Ice melts to form water. And water freezes to form ice. Choose the TRUE statement about these changes.
Dmitrij [34]

Answer:

A. Both freezing and melting are physical changes.

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3 years ago
The formation constant for the reaction ag (aq) 2nh3(aq) ag(nh3)2 (aq) is kf = 1.7 × 107 at 25°c. what is δg° at this temperatur
anzhelika [568]

The value of ΔG° at this temperature is -18034.18 J/mol

Calculation,

Given information

formation constant (Kf)= 1.7 × 10^{7}

Universal gas constant (R) = 8.314 J/K• mol

Temperature = 25° C = 25 °C + 273 = 300 K

Formula used:

ΔG° = -RT㏑Kf

By putting the valur of R,T, Kf we get the value of ΔG°

ΔG° = - 8.314 J/K• mol×300K㏑ 1.7 × 10^{7}

ΔG° = -2494.2㏑ 1.7 × 10^{7} = -18034.18 J/mol

So, change in standard Gibbs's free energy is -18034.18 J/mol

Learn about formation constant

brainly.com/question/14011682

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