For each of the following experiments (1-4), calculate the ph at each titrant volume listed below (i-vii). when you are finished with this problem, you should have 28 ph values calculated. titrant volume: 0.0 ml 12.5 ml iii. 25 ml iv. 37.5 ml v. 50.0 ml vi. 75.0 ml vii. 100.0 ml experiment 1: 50.0 ml of 0.100 m hno3 titrated with 0.100 m naoh experiment 2: 50.0 ml of 0.100 m ch3cooh titrated with 0.100 m naoh experiment 3: 50 ml of 0.100 m naoh titrated with 0.100 hci experiment 4: 50 ml of 0.100 m nh3 titrated with 0.100 hci

How do i complete this electrolysis of water lab? i’m at home, so i don’t have the materials, and the lab didn’t properly work and was incomplete at school.

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)

In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding.i