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AlladinOne [14]
2 years ago
8

Which statements about the operation of an automated micropipettor are true? The volume dial has already been set, do not alter

it. The volume dial has not been set, adjust it to the desired setting. A new disposable plastic tip is required for each sample. The point of initial resistance is the level of depression that will fill the pipette with the desired volume of solution.
Chemistry
1 answer:
yanalaym [24]2 years ago
4 0

Answer:

The correct statement is that the point of initial resistance is the level of depression that will fill the pipette with the desired volume of solution.

Explanation:

The pipette can be otherwise stored vertically or horizontally, this has nothing to do with the operation, and before the operation, the dial needs to be set. Also, the plastic pipette tip should not be ejected at all, thus, no new disposable plastic tip is required for each sample.

The correct statement is that the point of initial resistance is the level of depression that will fill the pipette with the desired volume of solution.

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Answer:

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2 years ago
When carbon is burned in air, it reacts with oxygen to form carbon dioxide. when 18.0 g of carbon were burned in the presence of
zavuch27 [327]
C + O2 --> CO2

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3 years ago
1. How many grams would 8.1 x 1021 molecules of sucrose (C12H22011)<br> weigh?
Nimfa-mama [501]

Answer:

Mass = 4.6 g

Explanation:

Given data:

Number of molecules of sucrose = 8.1 ×10²¹ molecules

Mass of sucrose = ?

Solution:

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1 mole × 8.1 ×10²¹ molecules / 6.022×10²³ molecules

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Mass = 1.35 × 10⁻² mol ×342.3 g/mol

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Mass = 4.6 g

7 0
3 years ago
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Hey there! Let's get that problem solved! 

First: Let's define, "solution." 

Solution: <span>a liquid mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent).

Next: Ask yourself, "can a solution be taken apart?" 

In some cases, yes. It can. 

The solution of salt water for example, can be physically separated by evaporation. (place salt-water in a pot on a heated stove, place the cover to the pot on the opening, wait a few minutes, remove the top, and you can (and taste) the water without the salt!)  </span><span />
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2 years ago
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Answer:

C solution

Explanation:

i hope that i got it right im not very good with questions

8 0
2 years ago
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