Answer: The molar mass of the hydrocarbon is 37 g/mol
Explanation:
Elevation in boiling point is given by:
= Elevation in boiling point
i= vant hoff factor =1 (for non electrolyte )
= boiling point constant = 
m= molality
Weight of solvent (acetone) = 95 g = 0.095 kg
Molar mass of solute = M g/mol
Mass of solute = 3.75 g
Thus the molar mass of the hydrocarbon is 37 g/mol
Answer:
0.32 V
Explanation:
N = 10, A = 0.23 m^2, B = 0.47 T, t = 0.34 s
The average induced emf is given by
e = - N dФ / dt
Where, dФ be the change in magnetic flux in time dt.
dФ / dt = d / dt (B A) = A dB/dt
So,
e = - 10 x 0.23 x 0.047 / 0.34 = - 0.32 V
The negative sign shows the direction of induced emf.
Answer:
Waves transfer energy, not matter
Explanation:
The answer is constructive interference. At the point when two waves meet such that their peaks line up together, then it's called productive obstruction. The subsequent wave has a higher adequacy. In dangerous obstruction, the peak of one wave meets the trough of another, and the outcome is a lower add up to adequacy.
