What is the mass of 2.30 mol of oxygen gas, O2 ?

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons

How many moles of kci are produced from 2.50 moles k