Answer:
24.9mL of the stock solution are required
Explanation:
To solve this question we have to find, as first, the moles of HCl that we need to prepare the desire solution. These moles are taken from the stock solution as follows:
<em>Moles diluted solution:</em>
500.0mL = 0.5000L * (0.613mol / L) = 0.3065 moles HCl
As these moles comes from the 12.3M HCl solution, the volume that we need of the stock solution is:
<em>Volume stock solution:</em>
0.3065 moles HCl * (1L / 12.3moles) = 0.0249L 12.3M HCl =
<h3>24.9mL of the stock solution are required</h3>
Answer : The mass of potassium phosphate needed will be 3.98 grams.
Explanation : Given,
Molarity of potassium phosphate = 0.75 M = 0.75 mole/L
Molar mass of potassium phosphate = 212.27 g/mole
Volume of solution = 25.0 mL = 0.025 L (conversion used : 1 L = 1000 mL)
Molarity : It is defined as the number of moles of solute present in one liter of solution.
In this problem solute is, potassium phosphate.
Formula used :
Now put all the given values in this formula, we get:
Therefore, the mass of potassium phosphate needed will be 3.98 grams.
Answer:
A glucose molecule is made up of 6 Carbon atoms, 12 Hydrogen atoms, and 6 Oxygen atoms. This is a 1:2:1 ratio. Hopefully, this helps!
Explanation:
<u>Answer:</u> The rate law for the reaction is
<u>Explanation:</u>
In a mechanism of the reaction, the slow step in the mechanism always determines the rate of the reaction.
For the given chemical reaction:
The intermediate reaction of the mechanism follows:
<u>Step 1:</u>
<u>Step 2:</u>
As, step 1 is the slow step. It is the rate determining step
Rate law for the reaction follows:
Hence, the rate law for the reaction is
Answer:
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Explanation: