First convert 0.163 grams of N2O to mol by dividing it with
the molecular weight. The molecular weight of N2O is 44 grams/mol. The answer
would be 3,79x10^-3. Then multiply it with 2 since there are 2 Nitrogen in one
mole of N2O. Therefore, there are 7.41x10^-3 moles of Nitrogen.
The answer is for this question is c
Answer/Explanation:
A) The independent(test) variable controls the dependent variable. A good way to think about this is that the independent variable has nothing that effects itself. The dependent variable is 'dependent' or reliant on the independent variable.
Answer: Option (b) is the correct answer.
Explanation:
The elements which have excess or deficiency of electrons will react readily.
Atomic number of Mn is 25 and electronic configuration of is [Ar]. This configuration is stable.
Atomic number of Cr is 24 and electronic configuration of is [Ar]. This configuration is not stable.
Atomic number of Fe is 26 and electronic configuration of is [Ar]. This configuration is stable.
Atomic number of Cu is 29 and electronic configuration of is [Ar]. This configuration is not stable.
Atomic number of Al is 13 and electronic configuration of Al is . This configuration is not stable.
Atomic number of Ba is 56 and electronic configuration of is [Kr]. This configuration is stable.
Atomic number of Mg is 12 and electronic configuration of is . This configuration is stable.
Atomic number of Sn is 50 and electronic configuration of Sn is [Kr]. This configuration is stable.
Thus, we can conclude that out of the given options, only Fe and reactants would lead to a spontaneous reaction as they have incomplete sub-shells. Therefore, in order to gain stability they will readily react.
Answer:
1.47 mol/L
Explanation:
Molarity is given as,
Molarity = Moles / Vol in L ------- (1)
Moles of CaCl₂,
Moles = Mass / M.Mass
Moles = 535 g / 110.98 g/mol
Moles = 4.82 mol
Now, putting values in eq. 1.
Molarity = 4.82 mol / 3.28 L
Molarity = 1.47 mol/L