17.85 mL of 3.0 M stock solution of nitric acid is needed to make a 150 mL 0.357 M nitric acid.
The dilution of a stock solution can be solved by using the formula below, which indicates that the concentration of the solution changes but the number of moles of the solute remains the same.
(concentration of stock solution)(volume of stock solution) = (concentration of diluted solution)(volume of diluted solution)
Given:
- Stock solution: 3.0 M nitric acid
- Diluted solution: 150 mL of 0.357 M nitric acid
(3.0 M)(volume of stock solution)=(0.357 M)(150 mL)
volume of stock solution = [(0.357 M)(150 mL)] / (3.0 M)
volume of stock solution = 17.85 mL
To learn more about the dilution process, please refer to brainly.com/question/27097060.
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Answer:
Sublimate
Explanation:
The solid obtained at the neck of a funnel in sublimation is called the sublimate.
This substance is a solid.
- Sublimation process is a phase change.
- In this process, a solid is directly changed to gas or gas changed to solid.
- Heat must be added to change the solid to gas and heat removed for the reverse process.
- Not all substances have this capability.
~Hello there!
Your question: <span>The element of which group in the periodic table absorb the most energy when gaining an electron?
Your answer: Group 7A is the group in the periodic table that absorbs rge most energy when gaining an electron.
Any queries?
Happy Studying!
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Ionic, because it has a metal in it
Answer:
80 mL
Explanation:
Step 1: Given data
- Initial pressure of hydrogen (P₁): 360 mmHg
- Initial volume of hydrogen (V₁): 240 mL
- Final pressure of hydrogen (P₂): 1080 mmHg
- Final volume of hydrogen (V₂): ?
Step 2: Calculate the final volume of hydrogen
If we assume ideal behavior and constant temperature, we can calculate the final volume occupied by hydrogen using Boyle's law.
P₁ × V₁ = P₂ × V₂
V₂ = P₁ × V₁/P₂
V₂ = 360 mmHg × 240 mL/1080 mmHg = 80 mL