An engineer wants to estimate the mass of gas that is present in a tank. She knows that 1. 00 mol of the gas occupies a volume of 24. 5 L at the set temperature and pressure. If the volume of the tank is 170. 0 L and the molecular weight of the gas is 32. 00 g/mol, what is the mass of gas in the tank? 130 g 222 g 784 g 5,440 g.

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answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.