2. D) A solution that has more solute in it than it can hold is called a supersaturated solution. An easy way to know this is because super means that there is more.
3. I'm not sure about this one, but all I can tell you is that the gram formula mass of H2SO4 is 98 grams.
4. D) C2H6SO is the empirical formula. We know this because all of the subscripts are simplified as much as possible. You might try to simplify the C2 and H6 but take note that the S and O have no subscripts, so elements cannot be simplified anymore.
5. D) ethanoic acid (C2H4O2) has the same empirical formula as glucose. The empirical formula of glucose is CH2O. This is because the subscripts of 6/12/6 have a common factor of 6, so we divide them all by 6 to get subscripts of 1/2/1. Ethanoic acid has subscripts of 2/4/2. They have a common factor of 2, so when we divide them by 2, they will become 1/2/1.
To convert milliliters to liters, you should divide the milliliters by 1000. When we do that here, we will see that there are 0.0456 liters in 45.6 milliliters.
Explanation:
The nitrate anion is a univalent (-1 charge) polyatomic ion composed of a single nitrogen atom ionically bound to three oxygen atoms (Symbol: NO3) for a total formula weight of 62.05. Lead Nitrate is generally immediately available in most volumes.
A bohr model shows all electrons in an element :)
N=9.03 x 10^ 23/6.02 x 10^23
n= 1.5 Mol