1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MariettaO [177]
3 years ago
12

Which of the following statements are true regarding the effect of flame temperature on atomic absorbance and atomic emission sp

ectroscopy?
I. Varying the flame temperature by 10 K hardly affects the ground-state population of the analyte and would not noticeably affect the analyte signal in atomic absorption.
II. Varying the flame temperature by 10 K hardly affects the excited-state population of the analyte and would not noticeably affect the analyte signal in atomic emission.
III. Varying the flame temperature by 10 K affects the ground-state population of the analyte and will noticeably affect the analyte signal in atomic absorption.
IV. Varying the flame temperature by 10 K affects the excited-state population of the analyte and will noticeably affect the analyte signal in atomic emission.
Select one:

a. I and II
b. III and IV
c. I and IV
d. II and IV
e. II and III
Chemistry
1 answer:
creativ13 [48]3 years ago
7 0

Answer:

the correct option is option c, I and IV

Explanation:

Atomic emission spectroscopy is used to determine quantity of element in a sample.

Atomic emission spectroscopy based on occurring of atomic emission when a valence electron from higher energy orbital comes back to lower energy orbital.

Light intensity emitted by a flame, plasma, arc of particular wavelength are used to excite the valence electron.

The intensity of atomic emission lines are proportional to number of atoms present in the excited state.

Emission intensity is affected by temperature of the excitation source and the efficiency of atomization.

Increase in temperature does not affect the ground state population.

Therefore, statements I and IV are correct.

So, the correct option is c.

You might be interested in
It’s about the periodic table of elements
Pie
Yes what the other person said can I plz get an thanks
3 0
2 years ago
Which term describes this reactions?
Salsk061 [2.6K]

Answer:

Elimination

Explanation:

Since they are removing water from the solution, it is called elimination.

5 0
3 years ago
Read 2 more answers
Which of the following molecules have the weakest attraction to each other?<br> F2<br> Cl2<br> Br2
bija089 [108]

Answer:

Explanation:

F2 have the weakest attraction to each other because of higher electronegativity when they are brought close to each other they repel each other

5 0
3 years ago
PLEASE ANSWER QUICK 20 PTS AND ILL MARK YOU BRAINLIEST
Arisa [49]
Sodium is Highly reactive. It reacts with like everything
6 0
3 years ago
How many total atoms are in PoCI
maks197457 [2]
There is a total of 2 atoms in PoCl. One Cl (chlorine) and one Po ( Polonium) 
7 0
3 years ago
Other questions:
  • How many significant figures are in the measurement, 0.005890 g?
    9·1 answer
  • Please Help! 30 PTS. for correct answer and best explanation!
    13·2 answers
  • Brainiest if answered in the next 5m.
    10·1 answer
  • Which would be expected to have the higher boiling point, t-butyl alcohol (2-methyl-2-propanol) or n-butyl alcohol (1-butanol)?
    11·1 answer
  • When the water level of a stream or river exceeds its natural banks, it has reached its
    8·2 answers
  • What would be the MOLARITY (M) of the NaBr in the same buffer solution, if its concentration is now 0.9% (w/v)?
    7·1 answer
  • How many pairs are shared between the nitrogen atoms for hydrazine
    7·1 answer
  • What is the balanced equation for the reaction of aqueous cesium sulfate and aqueous barium perchlorate?
    15·1 answer
  • _____ are two or more elements that have been chemically combined. mixtures compounds atoms colloids
    7·2 answers
  • What mass in grams of nitric acid is required to react with 750 g C7H8?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!