PDF chapter test TRY NOW
1. How many nitrogen atoms are in o.25 mol of Ca(NO_3)_2?
2. 0.2 mol of HCl and 0.1 mol of barium chloride were dissolved in water to produce a 500 mL solution. The molarity of the Cl^- ions is
Answer variants:
4.0 × 10^2{^3}
3.0 × 10^2{^3}
0.90 M
0.80 M
Register for free to see more content