the density of liquid co2 at room temperature is 0.8g/cm3.how large a cartridge of liquid co2 must be provided to inflate a life jacket of 4l capacity at stp

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Please find the solution to the asked query:

$$\begin{gathered} Molecular weight of C{O}_2 =12+(2\times 16) =44g/mol \\ 22.4L C{O}_2 at NTP weighs =g.mol.wt of C{O}_2 =44g \\ 5L C{O}_2 at NTP weighs =\frac{44g}{22.4L}\times 4L =7.86g \\ wt of C{O}_2 =7.86g \\ Density of C{O}_2= 0.8g/c{m}^3 \\ Volume of cartridge containing 9.82g CO2 \\ =\frac{mass}{density}=\frac{7.86g}{0.8g/c{m}^3}=9.8c{m}^3 \end{gathered}$$

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