Question 15 (1 point) Antifreeze is an aqueous solution of propylene glycol. What is the mole fraction of propylene glycol (C3H6(OH)2 MM = 76.09) in a 54.8% by mass antifreeze solution? (+6 points for submitted work) = Your Answer

Ethanol (c2h5oh) is produced from the fermentation of sucrose in the presence of enzymes. c12h22o11(aq) + h2o(g) 4 c2h5oh(l) + 4 co2(g) determine the theoretical yield and the percent yields of ethanol if 680. g sucrose undergoes fermentation and 326.5 g ethanol is obtained. theoretical _ g _ percent %

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?

Will mark brainliest how many electrons can be held in the energy level n = 4?