A76.00 pound flask of mercury costs $145.00. the density of mercury is 13.534 g/cm3. find the price of one cubic inch of mercury by calculating intermediate values. what is the price of one pound of mercury?

1 cm³ of the mercury costs $ 0.0568

Cost of 1 pound of the mercury = $ 1.91

Explanation:

Given that:

The mass of mercury = 76.00 pound

Given that:

76.00 pound of the mercury costs $145.00

Or,

1 pound of the mercury costs $145.00 / 76.00

Cost of 1 pound of the mercury = $ 1.91

Also,

So,

of the mercury costs $

Cost of 1 gram of mercury = $ 0.0042

Given that:

The density of the mercury = 13.534 g/cm³

Mass = 1 gram

Considering,

Density = Mass / Volume

So,

Volume = Mass / Density = 1 gram / 13.534 g/cm³ = 0.0739 cm³

1 gram comprise of 0.0739 cm³ of the mercury

So,

0.0739 cm³ of the mercury costs $ 0.0042

1 cm³ of the mercury costs $ 0.0042 / 0.0739 = $ 0.0568

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.