I believe it is c
Answer :c
I remember take this class in 5 th grade
Answer : The mass of carbon required is, 309.4 grams.
Explanation : Given,
Mass of oxygen = 1100 g
Molar mass of oxygen = 16 g/mol
Molar mass of carbon = 12 g/mol
First we have to calculate the moles of oxygen.
Now we have to calculate the moles of carbon.
Moles of carbon =
Moles of carbon =
Now we have to calculate the mass of carbon.
Thus, the mass of carbon required is, 309.4 grams.
Answer:
The answer is attached below.
Explanation:
Answer:
This is due to the physical properties of the sample, since it affects the volume dispensed.
Explanation:
For example, in the case of very dense samples, selected samples to adhere to the surface of the tip, dispensing more slowly. In contrast, ethanol samples are less viscous and more volatile and are dispensed more rapidly. Some of the ways to minimize these inconveniences are the use of ultra low retention pipette tips, since they have a hydrophobic plastic additive that prevents the liquid from adhering to the inside of the tip.
Another way is to use the reverse pipetting.