Explanation:
Solubility is determined by the principle , "like dissolves like" .
i.e. , if a compound is polar then it will dissolve in a polar compound only , and
if a compound is non - polar then it will dissolve in a non - polar compound only .
Hence , from the question ,
Water is a polar molecule , and hence it will dissolve only the polar molecule , i.e. , from the given options the polar molecule is , iii. K₂SO₄
Hexane , is a non - polar molecules , hence it will dissolve only the non polar molecule , i.e. , from the given options the non polar molecule is i. Butane .
The molar mass of NH3
N = 14
H3 = 3
total = 17
The fraction of nitrogen is 14/17
So 14/17 x 125 = 102.94g
The answer is sodium (Na)
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Answer and Explanation :
borax is a week base which is used as a primary standard solution to standardize the acid solution there is a very good property of borax that is does not decompose easily as we discussed above that it is a week base does not soluble in water easily, so it is very necessary to proper mixing of borax in water. If there is in proper mixing of borax then it will effect the not standardize the solution and error will be reflected as high alkaline concentration
Answer: Thus 24.0 g of 
would be needed.
Explanation:
To calculate the moles :
According to stoichiometry :
1 mole of 
require = 2 moles of
Thus 0.1875 moles of will require=
of
Mass of 
Thus 24.0 g of would be needed to completely react with 6.00 g of such that all reactants could be consumed.
