To calculate the number of molecules of allicin in 2.60 mg, you first need to convert the mass to moles using the molar mass of allicin. Then, use Avogadro's number (6.022 x 10^23 molecules/mol) to convert moles to molecules.
The number of Avogadro states that 1 mole equals 6.02214179*10^23 mole. So if you have 1*10^19 HCl molecules, you have: 1*10^19 / 6.02214179*10^23 = 1.660538783*10^-5 mole of HCl. Which equals 0.0166053878 milimole.
There are about 6.24 x 1018 electrons in a coulomb. If we take 1.63 times that we get 1.02 x 1019 electrons. To "micro" that, we have to multiply it by 10-6, and that takes us to 1.02 x 1013 electrons. About.
To find the number of ammonium ions present in 10.7g of ammonium phosphate, you first need to determine the number of moles of ammonium phosphate using its molar mass. Then, recognizing that there are three ammonium ions in one molecule of ammonium phosphate, you can calculate the number of ammonium ions.
A US 1 cent piece prior to 1982 was made of copper and had a mass of about 3.1g. This is about 0.049 moles of copper, or around 2.9 x 1022 atoms. More recent pennies are mostly zinc (97.5%) and have a mass of about 2.5g. This works out to around 2.2 x 1022 zinc atoms and 5.9 x 1020 copper atoms, so overall around 2.3 x 1022 atoms.
They are 1 and 9.
997, 1009, 1013, 1019 . . .
1019, 1021
Three 1009 1013 1019
1019 = 1,019
The positive integer factors of 1019 are: 1, 1019
As in the question it is 1019
It is simply 1019/1 as an improper fraction
0.0206
1019 1021 1031 1033 and 1039. In fact those are the first 5 four digit primes.
Indeed, the number 1019 is prime - the number has no factors other than itself and 1.
1019