Chemistry, 28.08.2019 03:00 kaylyns134

What is the molarity of a 5.00 x 10^2ml solution containing 21.1g of potassium bromide? the molar mass of kbr is 119.0 g/mol

Answers

Volume of solution in liters:

5.00 x 10² mL / 1000 => 0.5 L

number of moles:

mass of solute / molar mass

21.1 / 119.0 => 0.1773 moles

Molarity = number of moles / volume

M = 0.1773 / 0.5

M = 0.355 mol/L

hope this helps!

Answer from: Quest

beta decay is the answer

Answer from: Quest

each column of the table is called a group. elements in a group share similar properties. groups are read from top to bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o. 2. 3. 4. 5. 6. 7. 8. 9. 2. beryllium. 9.012. 4. sodium. 22.990. 11. 3. magnesium. 24.305. 12. potassium. 39.098. 19. 4. calcium. 40.078. 20. i guess i

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