Answer:
Explanation:
It may not make any difference. The information missing is the radius of the planet.
However for the purposes of the question, let us assume that it is roughly the same diameter of the earth. Then the weight of anyone would increase if the mass is all that changes..
The formula governing your weight is F = G * m1 *m2 / r^2. If m1 is the mass of the planet and it increases a lot then m2 (you) should increase. The question is done by a proportion.
Where's the multiple choice for this
Answer:
1.20 M (3 s.f.)
Explanation:
In this question, we are trying to find the concentration of KCl after dilution. Note that the number of moles of KCl does not change.
![g \div \frac{g}{mol} = g \times \frac{mol}{g} = mol](https://tex.z-dn.net/?f=g%20%5Cdiv%20%20%5Cfrac%7Bg%7D%7Bmol%7D%20%20%3D%20g%20%5Ctimes%20%20%5Cfrac%7Bmol%7D%7Bg%7D%20%20%3D%20mol)
Number of moles of KCl
= 44.7 ÷74.55
= 0.59960 mol (5 s.f.)
New volume
= 500 mL
= (500 ÷1000) L
= 0.5 L
Concentration after dilution
= 0.59960 ÷0.5
= 1.1992 mol/L
= 1.20 M (3 s.f.)
* M is the symbol for Molarity, which is also equal to mol/L
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