How many grams of MgBr2 are in 6.771022 molecules of magnesium bromide (MgBr2)? Mg=24.01g/mol Br=79.90g/mol Additional Information: - If needed, use the periodic chart values from the printable Periodic chart provided with this course. - If needed use 6.0221023 for Avogadro's number. Format your answer: - With three significant figures - Include the correct unit. Enter your answer in decimal form with 3 sig figs. Use the proper abbreviation for the units