Question

calculate the number of moles present.
lets say there are:
2 h₂(g) + o₂(g) → 2 h₂o(g)
10 grams of hydrogen gas (h₂)
96 grams of oxygen gas (o₂)
10 g h₂ + 96 g o₂ → h₂o(g)
convert the following gram
values into mole values.
moles h₂?
moles o₂?
moles of (o₂)
molar masses
o₂ molar mass 32 g/mol
moles of (h₂)
h₂ molar mass 2 g/mol

Explanation:

Step1: Calculate moles of \(H_2\)

Use the formula \(n=\frac{m}{M}\), where \(n\) is moles, \(m\) is mass, and \(M\) is molar mass. For \(H_2\), \(m = 10\ g\) and \(M=2\ g/mol\).
\(n_{H_2}=\frac{10\ g}{2\ g/mol}\)

Step2: Calculate moles of \(O_2\)

For \(O_2\), \(m = 96\ g\) and \(M = 32\ g/mol\).
\(n_{O_2}=\frac{96\ g}{32\ g/mol}\)

Answer:

moles of \(H_2 = 5\ mol\), moles of \(O_2=3\ mol\)