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 this gas?
subtract 4.oo-2.56
and the answer is 1.44
Assuming that the blue compound was decomposing (e.g., a pyrolysis reaction) and was not reacting with another compound, the 1.44 g of mass loss equals gas generated.
1.44 cause 4.00 subtract 2.56 is equal to 1.44.
dont help at all. thx alot
To determine the mass of the gas produced in the reaction, we need to use the law of conservation of mass. According to this law, the mass of the reactants must be equal to the mass of the products.
In this case, the student starts with 4.00 g of the blue compound and ends up with 2.56 g of the white compound. The mass difference between the reactant and the product can be attributed to the mass of the colorless gas produced.
To find the mass of the gas, we need to subtract the mass of the white compound from the initial mass of the blue compound:
Mass of the gas = Mass of the blue compound - Mass of the white compound
Mass of the gas = 4.00 g - 2.56 g
Mass of the gas = 1.44 g
Therefore, the mass of the colorless gas produced in the reaction is 1.44 g.