Calculate the number of moles in each of the following

Calculate the number of moles in each of the following quantities.

a) atoms of each element in 3.35 moles of aspirin(C9H8O4)

b) positive and negative ions in 1.75 moles of calcium fluoride(CaF2)

Predict whether a precipitate of mgf2 will form when 1000 : in a saturated solution of mgf2 at 18c the concentration of mg2 is 1.21 x 10-3 molar. the equilibrium is represented

A new semiconductor has nc 1019 cm3 and nv5 x 1018 and : a new semiconductor has nc 1019 cm3 and nv5 x 1018 and eg 2ev. if it is doped with 1017 donors fully ionized

To identify a diatomic gas x2 a researcher carried out the : to identify a diatomic gas x2 a researcher carried out the following experiement she weiged an empty 1.00l bulb then

What is the volume of a sample of helium that has a mass of : what is the volume of a sample of helium that has a mass of 6.36 times 10-3 g and a density of 0.17847 gl? answer in

Calculate the number of moles in each of the following : calculate the number of moles in each of the following quantities.a atoms of each element in 3.35 moles of

If a 180 mg piece of gold density 1932 is hammered into a : if a 180 mg piece of gold density 19.32 is hammered into a sheet measuring 2.41.0 what is the average thickness of the

A helical spring of stiffness k is cut into two halves and : a helical spring of stiffness k is cut into two halves and a mass m is connected to the twonbsphalves as shown below

Thomas poured 25 ml of 060 m hcl into a large bottle he : thomas poured 25 ml of 0.60 m hcl into a large bottle. he then added enough water so that the new diluted concentration

Given that the specific heat capacities of ice and steam : given that the specific heat capacities of ice and steam are 2.06 jgdegc and 2.03 jgdegc the molar heats of fusion and