During the epsom salt drying lab, you dried epsom salt (hydrated magnesium sulfate) using either a stove top or an oven. You were instructed to make sure continue heating until two masses after heating were the same. Let’s say you had measured the epsom salt mass to be 6.1 grams, heated for 5 more minutes and gotten a mass of 5.4 grams. You used this final mass to calculate the percent water of epsom salt to be 32.4% when the accepted value is 51.2%. What error likely occurred during the experiment and then analysis?

You add {x} grams of anhydrous magnesium sulfate to {y} grams of sodium carbonate. What is the theoretical yield of the solid precipitate product? Give your answer to 3 decimal places

May 1, 2026

You measure the final mass of a product as {x}. The theoretical yield was {y}. What is the percent yield of the product? Give your answer to 1 decimal place.

May 1, 2026

You add solid iron (a black color) to a light blue solution of copper nitrate. After a few minutes, the solution turns a brown color and the solid metal in the solution turns a orangish red. In this reaction _______ was reduced and  _______ was oxidized

May 1, 2026