Question

Consider the following reaction. 4Na(s) + O₂(g) —› 2Na₂O(s)

The mass relationship between sodium (Na) and oxygen (O₂) is: 91.96g Na/32.00g O₂
A) TRUE
B) FALSE

Answer 1

The mass relationship between sodium (Na) and oxygen (O₂) in the given reaction is TRUE.

Step-by-step explanation:

The mass relationship between sodium (Na) and oxygen (O₂) in the given reaction is TRUE. According to the balanced equation, 4 moles of Na react with 1 mole of O₂ to produce 2 moles of Na₂O. The molar masses of Na and O₂ are 22.99 g/mol and 32.00 g/mol, respectively. Therefore, the mass relationship can be calculated as follows:

91.96 g Na / 22.99 g/mol Na = 4 mol Na

4 mol Na / (1 mol O₂ / 32.00 g/mol O₂) = 128 g O₂

Since the mass of Na is 91.96 g and the mass of O₂ is 32.00 g, the mass relationship between Na and O₂ is 91.96 g Na / 32.00 g O₂, which confirms that the statement is TRUE.