There is 8oz for each cup
The molecules in gas are always trying to expand
W=0.360
p=1.18g/mL
pH=2.12
v=14.0 L
M(HCl)=36.46 g/mol
v₀-?
1) pH=-lg[H⁺]
[H⁺]=c(HCl)=10^(-pH)
n(HCl)=v[H⁺]=v*10^(-pH)
2) n(HCl)=m(HCl)/M(HCl)=wv₀p/M(HCl)
3) v*10^(-pH)=wv₀p/M(HCl)
v₀=v*10^(-pH)M(HCl)/(wp)
v₀=14.0*10^(2.12)*36.46/(0.360*1.18)=9.115 mL
Approximately 9.1 mL of concentrated solution required.
Answer:
C) It explains why mass is conserved
Explanation:
The experimental studies carried out by Antoine Laurent Lavoisier led him to conclude that in a chemical reaction, which takes place in a closed system, the sum of the masses of the reagents is equal to the sum of the masses of the products, as in the following scheme:
m (reagents) = m (products)
* Where m represents mass
Thus, for example, when 4 grams of hydrogen (H) react with 16 grams of oxygen (O), 20 grams of water (H₂O) are formed.
So also if 14 grams of carbon (C) react with 34 grams of oxygen, 48 grams of carbon dioxide (CO₂) are formed.
In short, the law of conservation explains that the proportion, by mass, of the elements that participate in the composition of a substance is always constant and does not depend on the chemical process by which the substance is obtained.
Answer:
i) Ca = [Ar] 4s2
ii) Ar = [Ne] 3s2 3p6
III) Si = [Ne] 3s2 3p2
Explanation:
The Moeller diagram or Diagonals Rule is used to remember the order of filling of the atomic orbitals. It is simply a mnemonic rule.
The way to construct this diagram is to write the atomic energy levels (from 1 to 7) and the corresponding sub-levels next to it. Then diagonal lines are drawn from top to bottom.
The objective of the electronic configuration is to be clear about the distribution and the energetic order of the atoms, specifically, the distribution of the different levels and sub-levels of energy.
Electronic configuration:
Ca (Z= 20)
Ca: 1s2 2s2 2p6 3s2 3p6 4s2
Ar (Z= 18)
Ar: 1s2 2s2 2p6 3s2 3p6
Si (Z= 14)
Si: 1s2 2s2 2p6 3s2 3p2
