The percent composition by mass for sodium (Na) in Sodium phosphate (Na₃PO₄) : 42.07%
<h3>Further explanation</h3>Given
Compound of Sodium phosphate (Na₃PO₄)
Required
The percent composition by mass for sodium (Na)
Solution
<em>The Comparative Law (Proust ) : compounds are formed from elements with the same Mass Comparison</em>
MW Na₃PO₄ = 163,94 g/mol
Ar Na=22,989769g/mol
Answer:
The answer is
<h2>0.59 g/cm³</h2>Explanation:
To find the density of the sphere we use the formula
<h2>To find the density in g/cm³ first convert the mass into grams and the volume into cm³
For the mass we have
155 lb = 70306.82 g
For the volume
4.2 ft³ = 118930.76 cm³
Substitute the values into the above formula
That's
<h2>We have the final answer as
<h3>Density = 0.59 g/cm³</h3>Hope this helps you