Answer: -
2.5 mL
Explanation: -
Volume of final solution = 10 mL
Strength of final solution = 10 mg / mL
Amount of drug required = Volume of final solution x strength of final solution
= 10 mL x 10 mg/ mL
= 100 mg.
Strength of supplied drug = 40mg/ mL
Volume of supplied drug required = 
= 2.5 mL
Thus to make 10 ml of a 10 mg/ml solution. 2.5 mL will be needed.
Answer:
Remove exess water
Explanation:
The reaction involved is an esterification reaction. Esterification is a reaction in which alcohol and carboxylic acid reacts to yield an ester and water. It is analogous to the inorganic neutralization reaction.
According to Le Chatelier's principle , one method of driving the equilibrium towards the forward reaction is by removal of one of the products. In this case, if water is removed, the forward reaction is favoured.
Im pretty sure this answer is true
Hexane has a higher vapor pressure
The gases have no definite shape, low density, and are highly compressible while the liquids only have a definite volume but no definite shape.
<h3>What is a Matter?</h3>
Any substance which has mass and occupies space is called matter. Commonly, there are three states of matter that are:
- Solid - Solids have a rigid shape, definite volume, and high density.
- Liquid - Liquids have definite volume but no definite shape. They take the shape of the container in which they are placed.
- Gas - Gases have neither definite shape nor definite volume and have low density. They completely occupy the container in which they are placed.
There are other two states of matter that are Plasma and man-made Bose-Einstein condensates. They are not so common.
Plasma is commonly found in the universe. Stars are the superheated balls of the plasma.
Thus, gases have no definite shape, low density, and are highly compressible. On the other hand, the liquids only have a definite volume but no definite shape.
Learn more about states of matter:
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