# Law of conservation of matter lab report.The chemical reaction used to research is: AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq)

Chemistry Lab Report

Sukhjant Kaur

Law of Conservation of matter

Aim:

To design and perform a quick experiment to prove the Law of Conservation of matter.

Research question:

Does the mass of the reactants before the experiment is same as the mass of the product formed? Does the mass of the matter stays conserved during a chemical reaction as stated by the Law of Conservation of Mass?

Background theory:

Law of Conservation of matter states that matter can neither be created nor be destroyed.  According to this, there must be no loss in mass and particle of reactants after any physical or chemical reaction.

The chemical reaction used to research is:

AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq)

Hypothesis:

We hypothesis that the total mass of the reactants would be equal to the mass of products formed. This is because according to the Law of conservations of mass, there must be no loss in the mass of reactants in any reaction. Therefore, no loss in the total mass of reactants would prove the Law of Conservation of matter.

Variables:

The independent variable is the mass of the reactants. The dependent variable is the product produced and it’s mass. The controlled variables are the same reactants, same volumes and types of the containers (beakers or graduated funnel, etc), same analytical balance to weigh and the same concentration of the reactants.

Controlled Variables:

The reactants that are being used for all trials are Silver nitrate solution and Sodium chloride solution, and we are using same volumes and types of beakers so that there is no change in mass and same analytical balance with uncertainty of ±0.1. To keep the concentration of the reactants same, we will make the whole solution first so that there is no change in mass or reactivity.

Material:

• 5ml of Silver nitrate solution
• 5ml  of Sodium chloride solution
• Pipette of 10 ml
• 2 beakers of 50 ml.
• 2 Graduated cylinders of 100ml
• Analytical Balance to weigh the mass
• A small square piece of paper (4cm x 4cm) to weigh the solids
• 4ml of distilled water to make the solution
• A glass rod to stir

Some Safety Issues: