Chemistry (from Egyptian kēme (chem), meaning "earth") is the science concerned with the composition, structure, and properties of matter, as well as the changes it undergoes during chemical reactions.
Measure out a volume of water using the volume markings on your glass ware; determine the mass of this water at known temperature; to then calculate the volume of the weighted water using the density of water given in your manual: volume = mass / density. Then compare the volume calculated from the mass of water with the volume
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In a laboratory experiment, 85.3 mL of a gas are collected at 24 °C and 733 mm Hg pressure. Find the volume at STP. What is the mass of 18.9 L of NH3 at 31.0 °C and 97.97 kPa? 0.279 moles of O2 in a 1.85 L cylinder exert a pressure of 3.68 atm. What is the temperature in the cylinder (in °C)?