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A sample of [tex]$HNO_3$[/tex] contains 1.01 g of [tex]H[/tex], 14.01 g of [tex]N[/tex], and 48.00 g of [tex]O[/tex]. What is the percent composition of [tex]O[/tex]?

[tex][?]\%[/tex] [tex]O[/tex]

Sagot :

GinnyAnsweridn
Let's solve the problem step-by-step to find the percent composition of oxygen (O) in a sample of [tex]\( \text{HNO}_3 \)[/tex] (Nitric Acid).

1. Identify the Masses of Each Element:
- The given mass of Hydrogen (H) is 1.01 g.
- The given mass of Nitrogen (N) is 14.01 g.
- The given mass of Oxygen (O) is 48.00 g.

2. Calculate the Total Mass of the Sample:
- Total mass = mass of Hydrogen + mass of Nitrogen + mass of Oxygen
- Total mass = 1.01 g + 14.01 g + 48.00 g
- Total mass = 63.02 g

3. Calculate the Percent Composition of Oxygen:
- Percent composition is calculated by dividing the mass of the element by the total mass of the sample, then multiplying by 100 to convert it to a percentage.
- Percent composition of Oxygen [tex]\(= \left( \frac{\text{mass of Oxygen}}{\text{total mass}} \right) \times 100\)[/tex]
- Percent composition of Oxygen [tex]\(= \left( \frac{48.00 \text{ g}}{63.02 \text{ g}} \right) \times 100\)[/tex]
- Percent composition of Oxygen [tex]\( \approx 76.17\%\)[/tex]

Therefore, the percent composition of oxygen (O) in the sample is approximately [tex]\( 76.17\% \)[/tex].
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