A student heats 4.00 g of a blue compound, which reacts completely to produce 2.56 g of a white compound and an unknown amount of colorless gas. What is the mass of the gas?
Answer?_________
Work area:
Reactant (s) = Product (s)
To find the mass of the colorless gas, we can use the law of conservation of mass. According to this law, matter cannot be created or destroyed in a chemical reaction, only transformed from reactants to products.
Given:
Mass of blue compound (reactant) = 4.00 g
Mass of white compound (product) = 2.56 g
Since the reaction is complete, the total mass of the products must be equal to the total mass of the reactants. Therefore, we can determine the mass of the gas by subtracting the mass of the white compound from the mass of the reactant.
Mass of gas = Mass of reactant - Mass of white compound
Mass of gas = 4.00 g - 2.56 g
Now, we can calculate the mass of the gas:
Mass of gas = 1.44 g
Therefore, the mass of the gas is 1.44 g.