Answer is: there are 3.011·10²³ atoms of calcium.
n(Ca) = 0.50 mol; amount of substance(calcium).
Na = 6.022·10²³ 1/mol; Avogadro's constant or number.
N(Ca) = n(Ca) · Na.
N(Ca) = 0.50 mol · 6.022·10²³ 1/mol.
N(Ca) = 3.011·10²³; number of calcium atoms.
The mole is an SI unit which measures the number of particles in substance. One mole is equal to <span><span>6.022</span></span>·<span><span><span>10</span></span></span>²³<span> atoms.</span>
can you upload a clearer photo?
Answer:
There is 30.74% of carbon in dimethylsulfoxide
What happens to the water in the clouds is that he cloud gets heavy and let’s the rainfall out, aka rain
So your answer would pretty much be 2.80 x 10^24. The picture is just the explanation and how you would get that answer.
