Fusion............................................................................
Answer:
the state or quality of a material or membrane that causes it to allow liquids or gases to pass through it.
The answer is visible rays. For example, when a rain storm stops, the sun comes out and you are likely to see a rainbow. This is because the sun shines on water molecules in the air and the colors appear. These colors are called visible light. The only ray that a naked Human eye can see
Answer:
A, Vapor pressure is very high
Answer:
The correct answer is 399.8 ppm
Explanation:
A concentration in parts per million (ppm) is equal to:
![1 ppm = \frac{1 g solute}{10^{6}g solution}= \frac{1 mg solute}{1 kg solution}](https://tex.z-dn.net/?f=1%20ppm%20%3D%20%5Cfrac%7B1%20g%20solute%7D%7B10%5E%7B6%7Dg%20solution%7D%3D%20%5Cfrac%7B1%20mg%20solute%7D%7B1%20kg%20solution%7D)
Solute: Cd; Mass = 180 mg x (1 g/1000 mg) = 0.18 g
Solvent: Water ; Mass= 450.0 g x (1 kg/1000 g) = 0.45 kg
We have the following total mass of solution:
Mass of solution = Mass of solute + Mass of solvent = 0.18 g + 450 g = 450.18 g = 0.45018 kg
Finally, we divide the <u>mass of solute (in mg)</u> into the <u>mass of solution (in kg)</u> to obtain the ppm (in mg/Kg):
ppm = 180 mg/0.45018 kg = 399.8 mg/Kg = 399.8 ppm