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
g100num [7]
3 years ago
14

15. Explain the advantage of using spectral analysis in the identification of an elemental

Chemistry
1 answer:
I am Lyosha [343]3 years ago
4 0

Answer:

to identify the element by using flame tests

You might be interested in
At what distance from Earth are weather maps drawn?
-Dominant- [34]

Answer:

10^5 meters

Explanation:

4 0
3 years ago
Given that a chlorine-oxygen bond has an enthalpy of 243 kJ/mol , an oxygen-oxygen bond has an enthalpy of 498 kJ/mol , and the
Alecsey [184]

Explanation:

The chemical equation is as follows.

      \frac{1}{2}Cl_{2}(g) + \frac{1}{2}O_{2}(g) \rightarrow ClO(g)

And, the given enthalpy is as follows.

    \frac{1}{2}Cl_{2}(g) + O_{2}(g) \rightarrow ClO_{2}(g);  \Delta H = 102.5 kJ

    Cl-Cl = 243 kJ/mol,      O=O = 498 kJ/mol

Since, the bond enthalpy of Cl-Cl is not given so at first, we will calculate the value of Cl-Cl as follows.

   \Delta H = \sum \text{bond broken in reactants} - \sum \text{bond broken in products}

    102.5 = [(\frac{1}{2})x + 498] - [(2)(243)]

    102.5 = (\frac{1}{2})x + 498 - 486

     102.5 - 12 = \frac{x}{2}

           x = 181 kJ

Now, total bond enthalpy of per mole of ClO is calculated as follows.

       \Delta H = \sum E(\text{bond broken in reactants}) - \sum (\text{bond broken in products})

              x = [(\frac{1}{2})181 + (\frac{1}{2})498] - 243

                 = 339.5 - 243

                 = 96.5 kJ

Thus, we can conclude that the value for the enthalpy of formation per mole of ClO(g) is 96.5 kJ.

8 0
3 years ago
Select the correct answer.
timofeeve [1]

Answer:

D

Explanation:

4 0
3 years ago
Read 2 more answers
Calculate the molar mass of CH4 gas at STP when 5.46Lof the gas weighs 4g??​
meriva

Answer:

About 16.42 grams

Explanation:

PV=nRT \\\\(1)(5.46L)=n(0.0821)(273) \\\\n\approx 0.2436 \\\\4g/0.2436\approx 16.42

Hope this helps!

6 0
3 years ago
Ayye yoo who want to answer this question ill give brainlist :)
frez [133]

Answer:

noble-gas notation

Explanation:

5 0
2 years ago
Other questions:
  • How do you find the percent composition of CuBr2
    13·1 answer
  • Which chemical is least likely to undergo a chemical reaction
    9·1 answer
  • (3 points) Which physical properties are characteristics of metals? Choose all that apply.
    7·1 answer
  • 1. Is an egg being cooked a psychical or chemical change?
    9·2 answers
  • An electron returns from an excited state to its ground state, emitting a photon at λ = 500 nm. What would be the magnitude of t
    5·1 answer
  • Find the empirical and the molecular formula of acetylene gas composed of 92.26 percent carbon and 7.74 percent hydrogen
    10·1 answer
  • Which of these scenarios involve a reaction that is at equilibrium?
    7·2 answers
  • For each part below, use the data below to calculate ΔG at 215 K for each of the following reactions. Then use the data in the c
    9·1 answer
  • In order to prove that the Law of Conservation Mass is obeyed, what are the coefficients
    10·1 answer
  • Answer the following Question Down Below...
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!