If you use 19 mL of 0.100 M KMnO4, how many moles have you used? The answer has to be in four decimal places (do not forget the leading zero). No scientific notation.How much 5.0 M H2SO4 needs to be used to make 152 mL of 1.0 M? Round answer to nearest whole number and omit units.
Answers
Volume = 19 / 1000 = 0.019 L
n = M * V
n = 0.100 * 0.019
n = 0.0019 moles
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2)
M₁ * V₁ = M₂* V₂
5.0 * V₁ = 1.0 * 152
5.0 V₁ = 152
V₁ = 152 / 5.0
V₁ = 30.4 mL
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hope this helps!
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Which of the following metal atoms would have the highest conductivity?A.the atom with the smallest radius and the fewest valence electrons B.the atom with the smallest radius and the most valence electrons C.the atom with the largest radius and the fewest valence electrons D.the atom with the largest radius and the most valence electrons
Answers
Answer: (1) H+ ions in aqueous solution
Answers
Answer: D. all the empirical evidence available.
Explanation:
Answer:
D
Explanation:
(2) ethanol (4) water
Answers
Answer:
1) Ethanol
Explanation:
If we will have interactions we will need more energy to break them in order to go from liquid to gas. If we need more energy, therefore, the temperature will be higher.
In this case, we can discard the propanone because this molecule don't have the ability to form hydrogen bonds. (Let's remember that to have hydrogen bonds we need to have a hydrogen bond to a heteroatom, O, N, P or S).
Then we have to analyze the hydrogen bonds formed in the other molecules. For ethanol, we will have only 1 hydrogen bond. For water and ethanoic acid, we will have 2 hydrogen bonds, therefore, we can discard the ethanol.
For ethanoic acid, we have 2 intramolecular hydrogen bonds. For water we have 2 intermolecular hydrogen bonds, therefore, the strongest interaction will be in the ethanoic acid.
The closer boiling point to the 75ºC is the ethanol (boiling point of 78.8 ºC) therefore these molecules would have enough energy to break the hydrogen bonds and to past from liquid to gas.
Final answer:
Among Ethanoic Acid, Ethanol, Propanone, and Water, Propanone has the highest vapor pressure at 75°C because it has the weakest intermolecular forces, making it more likely to vaporize.
Explanation:
The vapor pressure of a substance is determined by how easily particles can escape from the liquid phase and become a gas. In general, the higher the temperature, the higher the vapor pressure.
The four liquids provided in your question are Ethanoic Acid, Ethanol, Propanone, and Water. At 75°C, Propanone is known to have the highest vapor pressure among the listed substances. This is because Propanone, also known as acetone, has weaker intermolecular forces and thus more readily vaporizes.
Learn more about Vapor Pressure here:
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b. 4
c. 8
d. 10
e. 13
Answers
12x+6 Solve for x
Answers
Answer:
x = 7
Explanation:
Simplifying
11x + 13 = 12x + 6
Reorder the terms:
13 + 11x = 12x + 6
Reorder the terms:
13 + 11x = 6 + 12x
Solving
13 + 11x = 6 + 12x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-12x' to each side of the equation.
13 + 11x + -12x = 6 + 12x + -12x
Combine like terms: 11x + -12x = -1x
13 + -1x = 6 + 12x + -12x
Combine like terms: 12x + -12x = 0
13 + -1x = 6 + 0
13 + -1x = 6
Add '-13' to each side of the equation.
13 + -13 + -1x = 6 + -13
Combine like terms: 13 + -13 = 0
0 + -1x = 6 + -13
-1x = 6 + -13
Combine like terms: 6 + -13 = -7
-1x = -7
Divide each side by '-1'.
x = 7
Simplifying
x = 7
Answer:Simple and best practice solution for 11x+13=12x+6 equation. ... + 6 Reorder the terms: 13 + 11x = 6 + 12x Solving 13 + 11x = 6 + 12x Solving for variable 'x'.
Explanation:
667 m
667 m/s
96,000 m
96,000 m/s
Answers
s = 8000 / 12
s = 667 m/s
In short, Your Answer would be Option B
Hope this helps!