A gas occupies a volume of 5dm3 at 2atm and 273 degree Celsius. Calculate the number of moles present in the gas

An aqueous solution of potassium hydroxide is standardized by titration with a 0.194 m solution of hydrobromic acid. if 25.2 ml of base are required to neutralize 24.2 ml of the acid, what is the molarity of the potassium hydroxide solution? m potassium hydroxide

The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .

Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?