A student is performing a chemical reaction. The mass of Reactant 1 is 33 grams. The mass of Reactant 2 is 57 grams. The reaction produces a solid and a gas. The mass of the solid is 26 grams. What is the mass of the gas?(1 point) Responses 26 grams 26 grams 90 grams 90 grams 116 grams 116 grams 64 grams

1 answer

To determine the mass of the gas produced in the reaction, we use the law of conservation of mass, which states that mass is neither created nor destroyed in a chemical reaction.

  1. First, we calculate the total mass of the reactants:

    • Mass of Reactant 1 = 33 grams
    • Mass of Reactant 2 = 57 grams
    • Total mass of reactants = 33 g + 57 g = 90 grams
  2. Next, we calculate the total mass of the products:

    • Mass of the solid produced = 26 grams
    • Let the mass of the gas produced be \( x \) grams.

    According to the conservation of mass: \[ \text{Total mass of reactants} = \text{Total mass of products} \]

    This can be expressed as: \[ 90 \text{ grams} = 26 \text{ grams} + x \]

  3. Solving for \( x \): \[ x = 90 \text{ grams} - 26 \text{ grams} = 64 \text{ grams} \]

Therefore, the mass of the gas produced is 64 grams.