Answer:
For this experiment we are going to take plate 1 as the control plate, so, in it there will be just E. coli in LB/agar; in plate 2, we are going to put E. coli in LB/agar and some ampicillin. Then, we have to wait for the E. coli colonies to form. After a while, the E. coli growth can be compared on both plates and determine if ampicillin affects or not the E. coli colonies.
Explanation:
If the ampicillin affects negatively E. coli colonies, we are going to observe that in plate 1 (control plate) there are E. coli colonies growing, but in plate 2, there is no E. coli colonies or, at least, there is a fewer number of colonies on it. If ampicillin doesn't affect E.coli, plate 1 (control) and plate 2 (ampicillin experiment) are going to be similar in number of colonies.
Answer:
Approximately 206 grams.
Explanation:
How many moles of sulfuric acid
are there in this solution?
.
The unit for concentration "
" is equivalent to mole per liter. In other words,
. For this solution, the concentration of
is
.
.
What's the mass of that
of
?
Start by finding the molar mass
of
.
Relative atomic mass data from a modern periodic table:
- H: 1.008;
- S: 32.06;
- O: 15.999.
.
.
.
In other words, the chemist shall need approximately 206 grams of
to make this solution. As a side note, keep in mind that the 206 grams of
also take up considerable amount of space. Therefore it will take less than 5.00 L of water to make the 5.00 L solution.
Follow the formula.. there’s not enough in this question for me to solve
P = pressure, V = volume, T = absolute temperature k = constant.