Explanation:
The given data is as follows.
= 225.5 mL, 
= 45.00 mL
= 0.09988 M, 
= ?
Therefore, formula to calculate final concentration will be as follows.
= 
Putting the given values into the above formula as follows.
=
= 
= 0.5 M
Thus, we can conclude that the final concentration of the given solution is 0.5 M.
Answer:
The Two reasons are :-
1. Combustion efficiency
2. Standardization of test conditions as non-luminous flame.
Explanation:
A luminous flame isn't suitable for heating as it gives out soot (A black powdery or flaky substance consisting largely of amorphous carbon, produced by the incomplete burning of organic matter)
.86km is the correct answer
Answer: the following are essential factors to be considered when choosing a solvent for crystallization
1. The crystallization solvent should not dissolve the substance to be purified at room temperature, but it should dissolve it well at the solvent’s boiling point
2. The solvent should dissolve soluble impurities well at room temperature.
3. The solvent should not dissolve insoluble impurities even at the solvent’s boiling
point.
4. The solvent must not react with the substance to be purified .
Answer Chemical reaction quantitatively depend on the reactant and product molecule
