Answer:
I think it's A. I'm pretty sure.
Explanation:
The two volumes are taken as additive ( in actuality they will not be) , then Final volume = 39.5+215 = 254.5mL % v/v ethanol = 39.5/254.5*100 = 15.5%l
Answer:
No, they dont have enough and they'd need 1 more quart of milk
Explanation:
lets see, 2 pints in a quart, if they have 6 quarts so 12 pints, they'd need 1 more quart to make 14 milkshakes
for 20, 6 12 oz bottles is 72 oz, 1/2 a gallon is only 64 so the 6 bottles is 8 more oz of water, Hoshi boght more
Answer:
2.843 M
Explanation:
Molarity = moles / volume
<u>Milliliters to liters:</u>
500 mL <u>= .500 L</u>
<u>Grams to moles:</u>
MgO molar mass = 16.00 + 24.31 = 40.31 g/mol
57.3 g x 1 mol / 40.31 g = <u>1.421 mol</u>
<u>Molarity:</u>
1.421 mol / .500 L = 2.843 M