How many moles are in 300.1 g of ammonia, nh3? be sure to show all work (hint: this question will require you to change grams to moles using molar mass, but you also need to calculate molar mass of the compound)

17.62 g/mol

Explanation:

Data:

m = 300.1 g
compound: NH3 (the number 3 is a subscript)
n = ?

Formula:

n = mass in grams /  molar mass

Solution:

1) Calculate the molar mass

N: 14.007 g/mol
H: 3*1.008 g/mol
   
    14.007g/mol + 3*1.008g/mol = 17.031 g/mol

2) Calculate the number of moles

n = mass in grams / molar mass = 300.1 g / 17.031 g/mol = 17.62 mol

17.62 mol

Google it that might work

Mg-26 and mg-24 are pair of isotopes. isotopes are defined as atoms of the same element having same atomic number but different mass number. i hope that was .