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Explanation:
The number of B that will be needed to convert 5 moles of A into as many moles of C as possible is 20 moles
Explanation
3A + 12 B → 4 C
The moles of B is calculated using the mole ratio of A to B from equation above
that is the moles ratio of A:B = 3 : 12
Therefore the moles of B = 5 x12/3 = 20 moles
The physical state that best describes the scientist's sample is solid (option C).
<h3>What are the states of matter?</h3>
Matter refers to any substance that has mass and occupies space. The states of matter are as follows;
- Solids; a substance in the fundamental state of matter that retains its size and shape without need of a container.
- Gases; a matter in a state intermediate between liquid and plasma that can be contained only if it is fully surrounded by a solid
- Liquids; substance that is flowing such as water; Liquids readily change their relative position, and which therefore retains no definite shape, except that determined by the containing receptacle.
According to this question, a scientist observed a sample of an unknown material to have molecules that are packed closely together and have fixed positions in space relative to each other. It has resistance to deformation and change of volume.
This description best fits the solid state of matter.
Learn more about solids at: brainly.com/question/14237862
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The higher concentrated solution is 0.250 mole LiCl dissolved in 250 ml of solution
( B).0.250mole of LiCl diluted in 250ml solution
<u>Explanation:</u>
<u>Procedure to find the intensity of the solution:</u>
To find the intensity of the solution, we have to use the following formula
M1V1=M2V2
250mL of a 0.500 M aqueous solution of LiCl is diluted with water
250 ml of a 0.250M aqueous solution of LiCl is diluted with water
Thus the PH level of a solution increases from ascending order, Therefore the Solution with 62.5M is a higher concentration than that of the solution with 125M.
