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Deffense [45]
3 years ago
15

Is it necessary to prepare sodium extract to detect nitrogen in urea ?​

Chemistry
1 answer:
Vilka [71]3 years ago
7 0

Answer:

I think No

Explanation:

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Consider the following precipitation reaction: 2Na3PO4(aq)+3CuCl2(aq)→ Cu3(PO4)2(s)+6NaCl(aq)
Troyanec [42]

Answer:

V= 37.0 mL

Explanation:

First find the moles of the known substance (CuCl2)

n= cv

where

n is moles

c is concentration

v is volume ( in litres)

n= 0.108 × 0.0946

n=0.0102168

Using the mole ratio in the balanced reaction, we can find the moles of Na3PO4

n (Na3PO4)= n (CuCl2) × 2/3

=0.0102168 × 2/3

=0.0068112

Now we have all the necessary values to calculate the volume

v=n/c

v= 0.0068112/0.184

v= 0.0370173913 L

v= 37.0 mL

6 0
4 years ago
Which statements describe surface waves? Check all that apply.
neonofarm [45]

Answer:

The correct answers are "They travel slower than P waves", "They result in much ground motion" and " They are produced by P and S waves".

Explanation:

A surface wave can travel through the existing interface between Earth and air, as well as between Earth and water. A clear example of this type of waves are Love and Rayleigh waves. They travel slower than primary waves, produce large movements in the ground and are produced by primary and secondary waves.

Have a nice day!

3 0
3 years ago
A measure of peak separation in a chromatographic method that equals the difference in retention time for two components divided
Mademuasel [1]

A measure of peak separation in a chromatographic method that equals the difference in retention time for two components divided by the average of their peak widths is the definition of resolution.

Retention time can be referred to as the amount of time a solute spends in the stationary and mobile phases of a column.

The analyte's interaction with the stationary phase determines the longer retention period.

The duration of retention will increase as the interaction becomes more strong.

Resolution is defined as the peak separation in a chromatographic procedure that is equal to the difference in retention time for two components divided by the average of their peak widths.

Learn more about resolution

brainly.com/question/14300434

#SPJ4

7 0
2 years ago
Sugar is stirred into water to form a solution. In this case, what names do we give to the sugar and water? A. sugar is the solu
Deffense [45]
C. Sugar is the solute and water is the solvent since sugar is the one dissolving and water is what the sugar is dissolving in.
3 0
3 years ago
Read 2 more answers
Bhumi meri dost ban gai
Aloiza [94]

Answer:

congratulations☺☺☺

7 0
3 years ago
Read 2 more answers
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