Answer:
1. 374.69 K
Explanation:
Hello,
In this case, pure water's boiling point is 373.15 K, thus by considering the boiling point increase equation:
Whereas i=2 since two ionic species are formed,actually, the experimental value is 2.42 so better work with it, thus:
Thus, the required boiling point is:
Regards.
The correct answer is option B, that is, the pitch changes from low to high.
The Doppler shift or the Doppler Effect refers to the variation in the wavelength or frequency of a wave in association with an observer who is traveling comparative to the source of the wave. A prime illustration of Doppler shift is the modification of the pitch heard when a vehicle sounding a horn comes towards and move away from an observer.
In comparison to the frequency emitted, the obtained frequency is greater at the time of approach, similar at the instant of passing by, and lower at the time of recession.
Valence shell it contains the valence electrons e.g. the outermost electro
Answer:
Percent yield is 25%
Explanation:
Information given is
Actual yield is 25 g
But the yield should be 100 g
The percent yield is defined as the ratio of the actual yield and the predicted yield it means that out of the predicted yield what percentage of the actual yield is obtained
∴ Percent yield = (Actual yield ÷ Predicted yield) × 100
In case of the given problem the percent yield will be
(25÷100) × 100 = 25%
∴ Percent yield = 25%
Answer:
e. 327/227
Explanation:
This is the correct standard pressure.
