The value of Triangle G is A) Less than 0.
Density = mass/V = MW P / RT
density = 64.1 g/mol X 1.2 atm / 0.0821 Latm/molK (271K) = 3.46 g/L
(1) Metal
All metals ionize easily, ex. Sodium forms Na+ easily as it has a very low first ionization energy, and all metals easily conduct electricity as they are very good at ionization and can thus move electrons from one atom to another.
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
It forms a slick on top of water because it is less dense.