A0.185-g sample of the nickel salt was dissolved in 30.00 ml of 0.1013 n hcl. the excess hcl required 6.30 ml of 0.1262 n naoh to reach the end point. calculate the weight of the salt that contains one mole of nh3 (that is the equivalent weight of the salt). propose a molecular formula for the salt in 3 that is consistent with this experimental equivalent weight