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HaileyAnn04
05.09.2019 •
Chemistry
How many coulombs of positive charge are there in 1.2 kg of carbon? twelve grams of carbon contain avogadro's number of atoms, with each atom having six protons and six electrons.
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Ответ:
5.78 × 10⁷ C
Explanation:
Given that:
The mass of the carbon = 1.2 kg
Also,
1 kg = 1000 g
So, mass = 1200 g
Molar mass of carbon = 12.0107 g/mol
Moles = Mass taken / Molar mass
So,
Moles = 1200 / 12.0107 moles = 99.91 moles
1 mole of carbon contains = 6.022 × 10²³ atoms
Also, 1 atom of carbon contains 6 positive charge (protons)
So,
99.91 moles of carbon contains = 6.022 × 10²³ × 99.91 × 6 protons
Charge on 1 proton = 1.6 × 10⁻¹⁹ C
So,
Charge of 1.2 kg carbon = 6.022 × 10²³ × 99.91 × 6 × 1.6 × 10⁻¹⁹ C = 5.78 × 10⁷ C
Ответ:
We could stop using gas and solar power instead and not hunt this precous and not litter
Explanation: