When an acid reacts with a metal why does the mass decrease?
One gram atomic mass of calcium reacts with two gram molecular masses of hydrochloric acid to form one gram formula mass of calcium chloride and one gram molecular mass of diatomic hydrogen gas.
a/c to balanced equation .... 1 mole H2SO4 produces 2 mole H2O98 g H2SO4 produces 2 x 18 g H2O50 g H2SO4 produces 2 x 18 x 50 / 98 g H2O50 g H2SO4 produces 18.37 g H2O
A home-using acetic acid solution is lesser than 10% w/w.
The molar mass of lauryl alcohol (C12H26O) is 186,34.
The formula for sulfuric acid is H₂SO₄. A mole of sulfuric acid would have a mass of approximately 98 grams.
When calcium carbonate reacts with hydrochloric acid, it forms calcium chloride, carbon dioxide, and water. The carbon dioxide gas is released into the atmosphere, causing a decrease in mass because it escapes as a gas rather than remaining in the solid form of calcium carbonate.
To determine the mass of strontium chloride that reacts with 300 g of sulfuric acid, you need to know the balanced chemical equation for the reaction between strontium chloride and sulfuric acid. From the equation, you can determine the mole ratio between strontium chloride and sulfuric acid. Then, you can use the molar mass of strontium chloride to calculate the mass that reacts with 300 g of sulfuric acid.
Total mass remains the same according to the law of conservation of mass.
The loss of mass from the start as time goes on
The total mass will remain the same. The Law of Mass Conservation that matter cannot be created or destroyed. So, as long as the acid and the base react in a closed system (none of the products escape measurement) the mass will remain the same. The only way the total mass could seem less then the original mass would be because some of the water, that is always created in the reaction of an acid or base, has evaporated. Or in the case of Sodium bicarbonate (baking soda) carbon dioxide is released when it reacts with an acid, so unless it reacts in a closed system, that mass will escape measure.
you increase or decrease mass by taking the mass out
One gram atomic mass of calcium reacts with two gram molecular masses of hydrochloric acid to form one gram formula mass of calcium chloride and one gram molecular mass of diatomic hydrogen gas.
Yes, when an egg is soaked in vinegar, the acidic vinegar reacts with the calcium carbonate in the eggshell, causing it to dissolve. This can lead to a decrease in the mass of the egg as the shell dissolves.
The mass of the carbonate used.
a/c to balanced equation .... 1 mole H2SO4 produces 2 mole H2O98 g H2SO4 produces 2 x 18 g H2O50 g H2SO4 produces 2 x 18 x 50 / 98 g H2O50 g H2SO4 produces 18.37 g H2O
If you decrease the mass while keeping the volume constant, the density of the object will decrease. Density is calculated by dividing mass by volume, so a decrease in mass with a constant volume will result in a lower density.
This depends on the nature of solution; when the sample react with an acid the mass decrease and the solution become colored.