Answer:
i think the answer will be b. the point where the ph corresponds to a solution of the conjugate acid (bh+) in water;
Explanation:
Answer:
The cuvette will only fit into the spectrophotometer in one orientation.
Explanation:
There is an arrow always marked on the cuvette that indicates how to place it inside the spectrophotometer. The sides of the cuvette also have small edges that if light passes through them, spurious light can be detected due to poor positioning. The spurious light does not get through the entire sample, if we want to measure the absorbance. With a cuvette in the indicated position, the procedure is measured and its reference value is taken, and then compared with other cuvettes to be used.
Look the picture!
<span>The formula for nitrogen gas is N2<span>
your welcome!</span></span>
D. Metals
Elements that are shiny, solid, conducts electricity, has atomic mass of 108 is metal.