Rachel has a sample containing 2 moles of carbon. how many atoms of carbon are in this sample? a. 2.044 × 1023 atoms b. 6.022 × 2023 atoms c. 1.204 × 1024 atoms d. 6.022 × 1046 atoms

Answer is: c. 1.204 × 10²⁴ atoms of carbon.

n(C) = 2 mol; amount of substance of carbon.

Na = 6.02·10²³ 1/mol; Avogadro constant (the number of constituent particles, in this example atoms, that are contained in the amount of substance given by one mole).

N(C) = n(C) · Na.

N(C) = 2 mol · 6.02·10²³ 1/mol.

N(C) = 12.04·10²³ = 1.204·10²⁴; number of carbon atoms in a sample.

Answer is C

Explanation:

Plato Users

it should be p1 v1 = p2 v2

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.