Answer: I think 82.46
Explanation: The atomic number for strontium, or Sr on the periodic table, is 38. With knowing the atomic number, I multiplied that by the number of moles given.
38 × 2.17 = 82.46
I hope this helps!!
Answer:
it can be increased by the number of atoms on each side
Answer:
neutrons should be added with the protons
Okay... what are the following
Answer:
The answer to your question is: 0.02
Explanation:
Data
Mass = 5.3 g of CaCl₂
Volume = 2.5 l
Molarity = ?
Formula
Molarity =
Process
1.- Calculate the molecular mass of CaCl₂
Molecular mass = mass of Calcium + mass of chlorine
Molecular mass = 40 + 2(35.5)
= 40 + 71
= 111 g
2.- Calculate the mles of CaCl₂
111 g of CaCl₂ ------------------ 1 mol
5.3 g ------------------- x
x = (5.3 x 1) / 111
x = 0.048 moles
3.- Calculate molarity
Molarity = 0.048 / 2.5
Molarity = 0.02