Determine the mass of glucose, C6H1206(s), needed to produce a 0.150 molality glucose solution in 50.0 mL of C2H5OH (l), density 0.789 g/mL.

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

hope this mark me brainliest