Answer:
The molarity of the chromium(III) acetate solution 0.3982 M.
0.3982 M is the concentration of the chromium(III) cation.
1.1946 M is the concentration of the acetate anion.
Explanation:
![Molarity=\frac{\text{Mass of substance}}{\text{Molar mass of substance}\times \text{Volume of solution(L)}}](https://tex.z-dn.net/?f=Molarity%3D%5Cfrac%7B%5Ctext%7BMass%20of%20substance%7D%7D%7B%5Ctext%7BMolar%20mass%20of%20substance%7D%5Ctimes%20%5Ctext%7BVolume%20of%20solution%28L%29%7D%7D)
Mass of chromium(III) acetate = 22.8 g
Molar mass of chromium(III) acetate = 229 g/mol
Total volume of the solution of chromium(III) acetate = V = 250 mL = 0.250 L
1 mL = 0.001 L
The molarity of the chromium(III) acetate solution :
![[Cr(CH_3COO)_3]=\frac{22.8 g}{229 g/mol\times 0.250 L}=0.3982 M](https://tex.z-dn.net/?f=%5BCr%28CH_3COO%29_3%5D%3D%5Cfrac%7B22.8%20g%7D%7B229%20g%2Fmol%5Ctimes%200.250%20L%7D%3D0.3982%20M)
The molarity of the chromium(III) acetate solution 0.3982 M.
![Cr(CH_3COO)_3\rightarrow Cr^{3+}+3CH_3COO^-](https://tex.z-dn.net/?f=Cr%28CH_3COO%29_3%5Crightarrow%20Cr%5E%7B3%2B%7D%2B3CH_3COO%5E-)
According to reaction, 1 mole of chromium(III) acetate gives 1 mole of chromium(III) ions and 3 moles of acetate ions.
So ![[Cr^{3+}]=[Cr(CH_3COO)_3]=0.3982 M](https://tex.z-dn.net/?f=%5BCr%5E%7B3%2B%7D%5D%3D%5BCr%28CH_3COO%29_3%5D%3D0.3982%20M)
![[CH_3COO^-]=3\times [Cr(CH_3COO)_3]=3\times 0.3892 M=1.1946 M](https://tex.z-dn.net/?f=%5BCH_3COO%5E-%5D%3D3%5Ctimes%20%5BCr%28CH_3COO%29_3%5D%3D3%5Ctimes%200.3892%20M%3D1.1946%20M)
0.3982 M is the concentration of the chromium(III) cation.
1.1946 M is the concentration of the acetate anion.
The question is incomplete, the complete question is shown in the image attached to this answer
Answer:
2,3,3-trimethylhexane
Explanation:
IUPAC nomenclature provides a universally acceptable method of naming organic compounds from its structure.
According to this system of nomenclature;
A comma is used to separate two numbers.
A hyphen is used to separate a number from a letter.
Applying these rules, the name of the compound shown in the question should be written as 2,3,3-trimethylhexane.
Answer:
A) The acceleration due to gravity for any object, including 1 washer on the string, is always assumed to be 10 m/s2.
B) The mass of 3 washers, when converted to kg, is 0.0147 kg.
C) The applied force of 3 washers will increase the applied force on the car to 0.147 N.
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Answer: Noble gas configuration is the ionisation of valence electrons using the octet rules.
Explanation:
Noble gases are the halogen, iodine etc. they form molecules using anion valence electrons in order build octet structures.