Snow-Globe Precipitation Lab Report

Chemistry 1st

Snow-Globe Precipitation Lab Report

Introduction

In the Snow Globe lab, there are many different elements that you have to figure out in order to reach a final product. You have to demonstrate how to find the equation, states of matter, how much of each reactant is going to be used, and what you should be able to recover as your end product in the lab. The purpose of the lab is to see if you can piece all the chapters learned about chemical reactions and to actually turn them into something you can understand. Copper (II) Sulfate and Lead (II) Nitrate were the two reactants and Copper (II) Nitrate and Lead (II) Sulfate are the products. Lead (II) Sulfate will be the precipitate and Copper (II) Nitrate will be the aqueous solution. Based on the calculations, it was hypothesized that after the reactants reacted, there would less than what is expected to recover of the precipitate.

Procedures

First, the reactants were measured and recorded. They were placed in a beaker with water and had to be dissolved completely before continuing. Then, the reactants were poured into the same beaker and observations were recorded. A piece of filter paper was placed in a funnel and was placed under water to create a seal. After that was completed, the reaction was poured through the funnel and into a different beaker. To assure that all of the precipitate was out of the first beaker, water was added and was poured into the funnel. Next, the filter paper was removed and placed on a window seal to dry completely overnight. The next day the mass was weighed and recorded.

Sketch 1

Data

In this lab, Copper (II) Sulfate and Lead (II) Nitrate were mixed together to create Copper (II) Nitrate and Lead (II) Sulfate. This would look like:

CuSO4 (aq) + Pb (NO3)2 (aq) Cu (NO3)2 (aq) + PbSO4 (s)

Once the Copper (II) Sulfate and Lead (II) Nitrate were added together, they started to react. It started to foam and was a blueish white color. The solid then started to...