Question

how many molecules are in this bottle? (gas law question)

give: 500 mL

1/2 liquid of water

1/2 air

temp= 72 degrees F

pressure= 1 amt

Answer 1

Comment in case of any doubt.

ml = 13.89 mal noles to I mol шабл. Total 500mL of which water = $x 500=250 ml and remaining (500-250)= asome would be air 250 mL water = asomLx Lg = 250g 250g water = 250g - 13.80 H2O molar mass 18gmal = 13.89 mal x/6.022110 molecules & converting number of molecules of = 8.3639 x 1024 molecules Now coming to air: 1. pv=nRT (gas law) vis litres - n= pu= latmx 0.250L 70-082) ato.b)x1724293 295.3724 => n = 0.01031 mol = 0.01031 mol xf 6-022 xiomolecules ((72-32)ış. +373.15) al Inal converting moles °F to kelvin conversion of air to molecules of air = 0.062 08 x 1023 molecules = 6.208 x10 molecules Total molecules in the bottle = nuater thair = 8.3639x18 +6208810² = [8.37x10ps molecules / molot 23 73.15 022 XJÖ molecules = 0.01031 molxl