Ask question

Ask question

All categories

3 years ago

13

Calculate the mass in grams of 24.5 mL of diethyl ether, an anesthetic that has a density of 0.713 g/mL. Round your answer to th

e tenth's place.

1 answer:

Contact [7]3 years ago

6 0

Answer:

17.48

Explanation:

mass=density×volume

= 0.713g/ml × 24.5 ml

= 17.4685

≈ 17.47

You might be interested in

1- What is temperature?

Katen [24]

Answer:

the sum of average kinetic molecules of the body is called temperature..

5 0

3 years ago

Following the instructions in your lab manual, you have titrated a 25.00 mL sample of 0.0100 M KIO3 with a solution of Na2S2O3 o

vivado [14]

<u>Answer:</u>

<u>For 1:</u> The amount of potassium iodate that were titrated is $2.5\times 10^{-4}$ moles

<u>For 2:</u> The amount of sodium thiosulfate required is $1.25\times 10^{-4}$ moles

<u>Explanation:</u>

<u>For 1:</u>

To calculate the number of moles for given molarity, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}\times 1000}{\text{Volume of solution (in L)}}$

Molarity of $KIO_3$ solution = 0.0100 M

Volume of solution = 25 mL

Putting values in above equation, we get:

$0.0100M=\frac{\text{Moles of }KIO_3\times 1000}{25}\\\\\text{Moles of }KIO_3=\frac{0.0100\times 25}{1000}=0.00025mol$

Hence, the amount of potassium iodate that were titrated is $2.5\times 10^{-4}$ moles

<u>For 2:</u>

The chemical equation for the reaction of potassium iodate and sodium thiosulfate follows:

$2KIO_3+Na_2S_2O_3\rightarrow K_2S_2O_3+2NaIO_3$

By Stoichiometry of the reaction:

2 moles of potassium iodate reacts with 1 mole of sodium thiosulfate

So, 0.00025 moles of potassium iodate will react with = $\frac{1}{2}\times 0.00025=0.000125mol$ of sodium thiosulfate

Hence, the amount of sodium thiosulfate required is $1.25\times 10^{-4}$ moles

6 0

3 years ago

What is the most striking part of this simulation?

oee [108]

None of the alpha particles fired at the foil are being repelled back, like they were in the Rutherford atom simulation.I hope this correct.

3 0

3 years ago

MC is admitted with pyelonephritis. She has chills, and her temperature is 101 F. She is complaining of flank pain, frequency, a

aleksandr82 [10.1K]

Answer:

i think its B

Explanation:

8 0

3 years ago

I will go to the app and give you brainly Est if u answer correctly ASAPPPPP

zhuklara [117]

Answer:

C

Explanation:

I think it is C

4 0

3 years ago