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wel
3 years ago
9

Tandem mass spectrometry is used to obtain _____.

Chemistry
2 answers:
elena-14-01-66 [18.8K]3 years ago
5 0
Tandem mass spectrometry (MS/MS) and Edman degradation are the two most widely used techniques for obtaining sequence information from proteins.
cluponka [151]3 years ago
5 0

Answer:

DNA fingerprints

Explanation:

Tandem mass spectrometry is used to obtain DNA fingerprints as it is used for sequencing of both DNA and RNA.

It involves multiple fragmentation.

In this mass spectrometry, the substrate is first converted to ions and then the ions are separated based on mass to charge ratio. Now these ions separated are further processed for fragmentation producing daughter or product ions. These are again separated and analyzed based on mass to charge ratio.

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Which is the correct formula for the compound made when aqueous solutions containing a dissolved magnesium compound and a dissol
jenyasd209 [6]
It would be MgCl₂ ~ Magnesium Chloride. 
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Which of the following is an example of a physical change?(1 point)
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Dissolving sugar in water
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What changes chemical energy to something you can use
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based on the law of conservation of energy its it atoms hold by strong chemical bonds

6 0
3 years ago
The following initial rate data are for the reaction of hypochlorite ion with iodide ion in 1M aqueous hydroxide solution: OCI+r
Vinil7 [7]

Answer:

Rate = k [OCl] [I]

Explanation:

OCI+r → or +CI

Experiment [OCI] M I(-M) Rate (M/s)2

1 3.48 x 10-3 5.05 x 10-3 1.34 x 10-3

2 3.48 x 10-3 1.01 x 10-2 2.68 x 10-3

3 6.97 x 10-3 5.05 x 10-3 2.68 x 10-3

4 6.97 x 10-3 1.01 x 10-2 5.36 x 10-3

The table above able shows how the rate of the reaction is affected by changes in concentrations of the reactants.

In experiments 1 and 3, the conc of iodine is constant, however the rate is doubled and so is the conc of OCl. This means that the reaction is in first order with OCl.

In experiments 3 and 4, the conc of OCl is constant, however the rate is doubled and so is the conc of lodine. This means that the reaction is in first order with I.

The rate law is given as;

Rate = k [OCl] [I]

5 0
3 years ago
A galvanic (voltaic) cell consists of an electrode composed of nickel in a 1.0 M nickel(II) ion solution and another electrode c
Andre45 [30]

<u>Answer:</u> The standard potential of the cell is 0.77 V

<u>Explanation:</u>

We know that:

E^o_{Ni^{2+}/Ni}=-0.25V\\E^o_{Cu^{+}/Cu}=0.52V

The substance having highest positive E^o reduction potential will always get reduced and will undergo reduction reaction.

The half reaction follows:

<u>Oxidation half reaction:</u> Ni(s)\rightarrow Ni^{2+}(aq)+2e^-

<u>Reduction half reaction:</u> Cu^{+}(aq)+e^-\rightarrow Cu(s)       ( × 2)

To calculate the E^o_{cell} of the reaction, we use the equation:

E^o_{cell}=E^o_{cathode}-E^o_{anode}

Substance getting oxidized always act as anode and the one getting reduced always act as cathode.

Putting values in above equation follows:

E^o_{cell}=0.52-(-0.25)=0.77V

Hence, the standard potential of the cell is 0.77 V

5 0
3 years ago
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