Answer:
can u retake the photo it does not show it all?
Answer:
Explanation:
Molal freezing point depression constant of butanol Kf = 8.37⁰C /m
ΔTf = Kf x m , m is no of moles of solute per kg of solvent .
mol weight of butanol = 70 g
235.1 g of butanol = 235.1 / 70 = 3.3585 moles
3.3585 moles of butanol dissolved in 4.14 kg of water .
ΔTf = 8.37 x 3.3585 / 4.14
= 6.79⁰C
Depression in freezing point = 6.79
freezing point of solution = - 6.79⁰C .
Answer:
11.009306 or 11.009
Explanation:
boron 11 has atomic mass of 11.009306
Question
Which one is more dangerous Ac or Dc how is it?
Answer
AC
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AC has the voltage alternates, it enter and exit from your body without a closed loop.
