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A mixture weighing 6.200 grams is 28.0% silicon dioxide or sand (SiO2), 36.0% sodium chloride (NaCl), and the rest being sodium bicarbonate, NaHCO3. How many grams of baking soda are present in the sample?

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mickymike92

The mass of baking soda, NaHCO₃ present in the sample is 2.232 g

What is the percentage mass of a substance?

The percentage mass of a substance is the ratio of the mass of a substance a given mixture or compound to that of the total mass of the compound or mixture expressed as a percentage.

  • Percentage mass = mass of substance/ mass of mixture or compound * 100%

The percentage mass of baking soda, NaHCO₃ = 100 - ( 28 + 36)%

The percentage mass of baking soda, NaHCO₃ = 36%

mass of baking soda, NaHCO₃ = 36/100 * 6.200

mass of baking soda, NaHCO₃ = 2.232 g

In conclusion, the mass of baking soda, NaHCO₃ is obtained from the total mass of the mixture and the percentage mass of baking soda in the mixture.

Learn more about percentage mass at: https://brainly.com/question/26150306

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