1.
5.0 M x [215/750] = ?
2.
NaOH + HCl ==> NaCl + H2O
mols NaOH = M x L = ?
The equation is 1 mol HCl to 1 mol NaOH; therefore,
mols HCl = mols NaOH
Then M HCl = mols HCl/L HCl = ?
(I need help with these two questions. I don’t know how to solve it.)
1. A student takes 215mL of a 5.0M HCI solution and places it into a beaker. The students then adds enough water to the beaker to make 750mL. Calculator molarity of this new solution.
2. A student starts with a titration by placing 30.0mL of 0.25M NaOH into a flask with 3 drops of phenolphthalein. The student then titrated to the endpoint using 18.0mL of HCI. Calculator concentration (molarity) of the HCI that the student used
2 answers
1) 1.43?
I’m confused on number #2
I’m confused on number #2
2 answers