Some students used a variety of procedures to investigate four liquid samples. The students recorded the following information.
• When Sample W was cooled, solid particles settled out of the liquid.
• The mass and volume of Sample X were measured, and the density of Sample X was
calculated to be 1.6 g/mL.
• Sample Y was heated, and the temperature was recorded. All the liquid boiled away at
the same temperature and left no residue in the container.
• When a dilute acid was added to Sample Z, gas bubbles formed and rapidly rose to the
surface of the liquid.

the correct answer is option d

explanation:

i was wrong its d because they dont use cm when calculating square roots

i'm assuming that the correct answer is indeed the first one/ "a"..

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

where are the choice options?