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Oliga [24]
3 years ago
5

Calculate the number of moles of Cl atoms in 1.81×10^24 formula units of magnesium chloride,MgCl2

Chemistry
1 answer:
rosijanka [135]3 years ago
5 0
3.62*10^24 is the answer
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A fishing line sinker contains 0.650 moles of lead. How many atoms of lead are in the sinker? Show all of your work, including s
34kurt

Answer:

3.91x10²³ atoms of lead

Explanation:

In chemistry, a mole of a substance is defined as 6.022x10²³ particles that could be atoms, molecules, ions, etc.

As you can see, in the problem, you have 0.650moles of lead in a fishing line sinker, the present atoms are:

0.650mol Pb \frac{6.022x10^{23}atoms}{1mol} =<em> 3.91x10²³ atoms of lead</em>

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3 years ago
If the freezing point of an aqueous 0.10 m glucose solution is −x°c, what is the approximate freezing point of a 0.10 m nacl sol
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Answer is: the approximate freezing point of a 0.10 m NaCl solution is -2x°C.
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m -  molality, moles of solute per kilogram of solvent.
</span>Kf and molality for this two solutions are the same, but Van't Hoff factor for sodium chloride is twice bigger, so freezing point is twice bigger.
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3 years ago
Hey man forgets that he said his coffee cup on the top of his car he starts to drive in the coffee cup rolls off the car onto th
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marusya05 [52]

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ASAP someone help ASAP
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sunlimation is when a solid goes to a gas thats all i can awnser i havent got that far in chemistry yet.

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3 years ago
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