Question

Sasha does an experiment that involves burning an 8 gram strip of magnesium metal in an open flame

Answers

GPT 3.5
. The magnesium metal reacts with oxygen in the air to produce magnesium oxide and a bright white light. After the reaction is complete, Sasha finds that the mass of the strip of magnesium metal has decreased to 7 grams.

To determine the mass of magnesium oxide formed during the reaction, Sasha needs to calculate the difference in mass between the initial mass of the magnesium metal and the final mass after the reaction.

Initial mass of magnesium metal = 8 grams
Final mass of magnesium metal = 7 grams

Mass of magnesium oxide formed = Initial mass - Final mass
= 8 grams - 7 grams
= 1 gram

Therefore, the mass of magnesium oxide formed during the reaction is 1 gram. Sasha can use this information to calculate the percentage yield of the reaction by comparing the actual mass of magnesium oxide formed to the theoretical mass that should have been formed based on stoichiometry calculations.