It’s either a or b, but I’m not sure which one it really is, but I hoped I helped a little /:).
Answer:
1 L
Explanation:
ppm means parts per million. Generally the relationship between mass and litre is given as;
1 ppm = 1 mg/L
This means that 1 ppm is equivalent to 1 mg of a substance dissolved in 1 L of water.
Answer: Option (c) is the correct answer.
Explanation:
Boiling point is defined as the point at which vapor pressure of a liquid becomes equal to the atmospheric pressure.
Boiling point of water is .
Whereas when we heat one mole of a liquid at its boiling point without any change in temperature then the heat required to bring out change from liquid to vapor state is known as heat of vaporization.
Thus, we can conclude that the heat of vaporization of water is the amount of heat/energy required to convert 1 gram of liquid water at to 1 gram of steam at .
Answer:
The correct answer will be 15
The second one. Subscripts are always related to molecules, not atoms and only count the number of molecules of a single element unless in a form such as (CO3)2. In this case, there are 2 molecules of carbonate and 6 of oxygen
Let me know if you need further explanation
Hope this helps!