All categories

4 years ago

What is the total number of sp2-hybridized carbon atoms present in the fluorophore used in the experiments

Chemistry

1 answer:

Mandarinka [93]4 years ago

3 0

Answer:

Explanation:

The structure of fluorophore used in the experiments has been drawn in the attachment. And from the drawing counting we can say that there are 9 sp2-hybridized carbon atoms present. Fiuorophores are a fluorescent chemical compound that can re-emit light upon light excitation. Normally used to produce absorbance and emission spectra.

You might be interested in

If you had excess chlorine, how many moles of of aluminum chloride could be produced from 25.0 g of aluminum? Express your answe

m_a_m_a [10]

Answer:

A. From 25,0 g of aluminium you will produce 0,927 moles of aluminium chloride

B. From 30,0 g of chlorine gas you will produce: 0,282 moles of aluminium chloride

Explanation:

a. The reaction that you have in this problem is:

3 Cl₂ + 2 Al → 2 AlCl₃

25,0 g of aluminium are:

25,0 ₓ $\frac{1mole}{26,98g}$ = 0,927 moles

As Al:AlCl₃ ratio is 1, from 25,0 g of aluminium you will produce: 0,927 moles of aluminium chloride

b. 30,0 g of chlorine gas are:

30,0 ₓ $\frac{1mole}{70,90g}$ = 0,423 moles of Cl₂

As Cl₂:AlCl₃ ratio is ³/₂:

0,423 moles of Cl₂ ₓ $\frac{2 molesAlCl_3}{3 molesCl_2}$ = 0,282 moles of aluminium chloride

Thus, from 30,0 g of chlorine gas you will produce: 0,282 moles of aluminium chloride

I hope it helps!

5 0

4 years ago

What other element had the same number of electrons as potassium??

sergiy2304 [10]

Answer:

Potassium is the only element with 19 electrons.

Explanation:

4 0

3 years ago

Compound X has the same molecular formula as butane but has a different boiling point and melting point. What can be concluded a

Alecsey [184]

Answer:

Explanation:

6 0

3 years ago

(45 pts) In which reaction is carbon reduced?

Sidana [21]

Answer:

Reductio is gain of electrons, while oxdation is loss. The oxidtion states of carbon in the reaction will show either of oxidation or reduction occurrence.

$C_{2} H_{2}(g) +H_{2} (g)$ → $C_{2} H_{4}(g)$

Explanation:

Electrons displacement is explained for each reaction below:

+2 to +4 = loss of 2 more lectrons-------oxidation
+4 throughout reaction----no exchange of electrons
-4 to +4 = loss of 4 electrons-----oxidation
0 to -2 = gain of 2 electrons-----reduction

5 0

3 years ago

Question 4 (1 point)

Diano4ka-milaya [45]

In an endothermic reaction products are HIGHER than reactants in potential energy and LESS stable.

Explanation:

Energy is input into the reaction in an endothermic reaction. This means the products are of a higher energy level than the reactants. Therefore the reaction increases Gibb's free energy and reduces entropy. Remember in thermodynamic stability involves an increase in entropy and a decrease in Gibbs free energy. Therefore the products are less stable than the reactants. This is why endothermic reactions do not occur spontaneously like exothermic reactions.

6 0

3 years ago