Question

How much positive charge is in 0.9 kg of carbon? The atomic weight (12.0107 g) of carbon contains Avogadro’s number of atoms, with each atom having 6 protons and 6 electrons. The elemental charge is 1.602 × 10−19 C and Avogadro’s number is 6.023 × 1023 . Answer in units of C.

Answer 1

Answer:

The positive charge in carbon is $=4338.11 \times 10^{4}$ C

Explanation:

Atomic weight: An atom consists of protons, neutrons and electrons. Atomic mass is the sum of the number of protons and neutrons. The average weight of mass is called atomic mass of that atom.

The positive charge of an atom is proton.

The atomic weight of carbon = 12.0107 g/mol

Avogadro's number = 6.023×10⁻²³ atom/ mol

Charge = 1.602×10⁻¹⁹ C

The weight of carbon = 0.9 kg = 900 gram

Number of protons in carbon = 6

The positive charge in carbon is

=No. mole× Avogadro's Number× No. proton × charge per proton

$=\frac {900g}{12.0107g/mol}\times( 6.023 \times10^{23} atom/mol) \times6 \times (1.602\times10^{-19}C)$

$=4338.11 \times 10^{4}$ C