Answer:
A. Neopentane.
B. 2,2-dimethyl-propane.
Explanation:
Hello,
In this case, for the given compound we can spell out two possible names:
A. Neopentane: it is, because the molecule has five carbon atoms wherein there is a central one, bonded to the other four.
B. 2,2-dimethyl-propane: it is, because we find two methyl radicals at the second carbon.
Regards.
Answer:
%age Yield = 66.05 %
Explanation:
In order to check the efficiency of a reaction the %age is calculated so that it can be concluded that either the conditions provided for certain reactions are favourable or not because at large scales reactions with greater %age yields are favoured as it results in high product quantity and hence, greater economical advantages.
The percent yield is given as;
%age Yield = Actual Yield / Theoretical Yield × 100
Putting values,
%age Yield = 253 g / 383 g × 100
%age Yield = 66.05 %
Hence, for the given reaction the success of the reaction is only 65% hence, steps can be made to improve this yield by modifying the reaction conditions.
Answer: 1.375 atm
Explanation:
Given that,
Original volume V1 = 2.0 L
original pressure P1 = ?
New volume V2 = 5.5L
New pressure P2 = 0.5 atm
Since pressure and volume are involved while temperature is constant, apply Boyle's law
P1V1 = P2V2
P1 x 2.0 L = 0.5 atm x 5.5L
P1 x 2.0 L = 2.75 atmL
P1 = 2.75 atmL / 2.0 L
P1 = 1.375 atm
Thus, the original pressure of the hydrogen gas is 1.375 atm
Answer:
Metals have an important role in our daily life. The discovery of the metal is said to be the most important milestone in the history of human civilization. We cannot live without machines now. All machines are made up of metals. Machines reduce the work of man. Many modern facilities would not have been possible without metals. Most metals occur as their compounds in nature.
