How many moles of potassium bromide (KBr) are in 97.569 grams?

A2.5% (by mass) solution concentration signifies that there is a 2.5 % (by mass) solution concentration signifies that there is blank of solute in every 100 g of solution. of solute in every 100 g of solution

The ammonia molecule in the diagram has the observed bond orientation because

Neutral atoms of argon, atomic number 18, have the same number of electrons as each of the following items except: cl- s -2 k+ ca +2 ne