In order to analyze the waste water containing Co2+ from a manufactur- ing process, 1.0 L of water was evaporated to 10.0 mL and then placed in a spectrophotometer tube. The absorbance was found to be 0.30 A
(63% transmittance), Using your calibration curve, calculate the number
of milligrams of Co2 in 1.0 L of waste water,

The minerals found in bones are deposited by living cells called

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

The diagram below shows a cell placed in a solution. a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution. only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it. it will expand as water moves into it. it will shrink as water moves into it.