This is, in fact, the definition of a mole. In order to have one mole of any molecular substance, you need to have #6.022 * 10^ (23)# molecules of that substance #-># this is known as Avogadro's constant.

Nov 5, 2016 · Thus, by definition, one mole of N a2CO3XH 2O will have a mass of 106 + 18X. Given that 107.25 g of the compound is equal to 0.375 mol, then 1 mole of the compound will have a mass …

Dec 24, 2017 · One "mole" of CO2 thus contains one "mole" of carbon, C, and one "mole" of oxygen, O2, or TWO "moles" of O (it's important to know how you are defining your elements). Let's use the …

You have 1 mole of AB_3 dissociating to produce 1 mole of A^ (3+) and color (red) (3) moles of B^ (-). You can use an ICE table to determine the value of the K_ (sp).

The 2:25 mole ratio that exists between the two reactants tells you that the reaction will consume 25 moles of oxygen gas for every 2 moles of octane that take part in the reaction.

"170 mL" Your strategy here will be to write a balanced chemical equation for this single replacement reaction use the molar volume of a gas at STP to find the number of moles of hydrogen gas present …

This implies that, at equilibrium, the solution contains #0.60# moles of hydronium cations and #0.60# moles of #"A"^ (-)# #-># this is the case because for every #1# mole of weak acid that dissociates, …

In order to find the equilibrium concentrations of the two reactants, use the fact that the reaction consumes equal numbers of moles of hydrogen gas and iodine gas and that you get #color (red) (2)# …

and contain 0.0025 moles of acetate ions, which were porduced by the neutralization reaction in accordance to the 1:1 mole ratio that exists between all the species involved.

The weak base reacts with the hydronium cations produced by the hydrochloric acid in a #1:1# mole ratio. This means that every mole of weak base that takes part in the reaction consumes one mole of …