Question

you decide to determine the effect of used cigarette butts on water from Morses Creek NJ and how it affects the water quality index. In the lab you set up 3 large tanks of water from morses creek for the control group and 3 large tanks for the experimental group. Explain how you should set up the control group tank and the experimental group tanks to measure dissolved oxygen levels, ph levels, and nitrogen levels

Answer 1

here 3 tanks are taken for normal water which is collected from morses creek, labelled it as 1A, 1B and 1C. for each control tank use 1A for oxygen level, 1B for pH level and 1C for nirogen level.

for experimental purpose dip cigarette butts in water and transfer it to 3 different tank with equal quantities. labelle it as 2A, 2B and 2C and set up as followed for control.

now dissolve oxygen level is measured with the help of oxygen meter for both tank 1A and 2A (hence controll as well as sample), note down the reading.

ph is measured by pH meter, first calibrtare pH meter than read the pH of control 1B and than sample 2B and note it down.

now measure nitrogen level with chemical experiment, or you can use nitrogen meter to determine the level of nitrogen in water. note down reading for both 1C and 2C.

by comparing the reading for both controll as well as sample (with cigarette butts), we can determine the effect of cigarette butts, wheter it influences oxygen level, pH level or notrogen level of water.