The Mole- Revision Questions

the SI base unit to measure the amount of a substance.

the SI base unit to measure the amount of Atoms only.

the Unit to measure Mass.

the unit to measure Moles

because it is easy way to measure the Reactants Mass.

knowing how many representative particles are in a sample.

It allow Chemists to know the chemical formula

It allow chemists to know the substance

atoms , ions , molecules and formula units

atoms , ions , formula unit and molecules

ions , atoms , molecules and formula units

ions , atoms , formula units and molecules

$$\frac{6.00\ \times\ 10^{23}\ particles}{1\ mol}\$$  

$$\frac{6.00\ \times\ 10^{20}\ particles}{2\ mol}\$$  

$$\frac{3.60\ \times\ 10^{47}\ particles}{2\ mol}$$  

$$\frac{999.00\ \times\ 10^{9999}\ particles}{999999\ mol}$$  

$$Cu\ =\ 6.02\ \times\ 10^{23}$$   $$N2\ =\ 6.02\ \times\ 10^{23}$$  

$$Cu\ =\ 3.6\ \times\ 10^{47}$$   $$N2\ =\ 2.6\ \times\ 10^{22}$$  

$$7.20\times10^{24\ }moleculesof\ H20$$ $$1.08\times10^{25\ }\ Atoms\ of\ Ag$$  

$$1.08\times10^{25\ }\ Formula\ units\ of\ Ag\ \$$   $$7.20\times10^{24\ }moleculesof\ H20$$  

$$2.0\times1^{-9\ }mol$$  

$$2.0\times10^9mol$$  

$$6.02\times10^{23}mol$$  

$$6.02\times10^{-23}mol$$  

Xe is larger

Ne is larger

is the mass in grams of one mole of any pure substance

is the mass in grams of 6.00 moles of any pure substance

is the mass in grams of every 12 moles of any pure substance

is the mass in grams of Pure substance , it depends on the question