A Haversian canal is referred to as any minute tube, which
forms a network in a bone and also contains blood vessels. Blood vessels, nerve
fibers and lymphatics may pass through the Haversian canal. Haversian canals are
found surrounding blood vessels and nerve cells all over the bones and interacts
with bone cells from end to end networks known as canaliculi.
830 mL. A 2.3 mol/L solution of CaCl2 has a volume of 830 mL
I am guessing that the concentration of your solution is 2.3 mol/L.
a) Moles of CaCl2
MM of CaCl2 = 110.98 g/mol
Moles of CaCl2 = 212 g CaCl2 x (1 mol CaCl2/110.98 g CaCl2)
= 1.910 mol CaCl2
b) Volume of solution
V = 1.910 mol CaCl2 x (1 L solution/2.3 mol CaCl2) = 0.83 L solution
= 830 mL solution
The complete chemical reaction of aqueous Sodium sulfate and aqueous Barium nitrate is

The right side and the left side of the reaction have equal number of elements, therefore it is balanced.