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ludmilkaskok [199]
3 years ago
13

How many molecules in 9.18 moles of C11H12O22

Chemistry
1 answer:
Setler [38]3 years ago
5 0

Answer:

55.3 × 10²³ molecules

Explanation:

Given data:

Number of moles of C₁₁H₁₂O₂₂ = 9.18 mol

Number of molecules = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

For example,

18 g of water = 1 mole = 6.022 × 10²³ molecules of water

For given data:

9.18 mol × 6.022 × 10²³ molecules /1 mol

55.3 × 10²³ molecules

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When salt is in water it creates electrolytes which are able to conduct electricity
7 0
3 years ago
Explain the difference, with sketches, between the titration curves of monoprotic acid and a triprotic acid.
kvasek [131]

Answer:

A monoprotic acid has only one equivalence point in a titration curve while a triprotic acid has three equivalence points.

Explanation:

Monoprotic acids, HA, are acids that are able to donate one proton per molecule during the process of ionization or dissociation as shown below:

HA ----> H⁺ + A⁻

A triprotic acid is a polyproprotic acid, that is acids that can donate more than one proton per molecule during ionization. a triprotic acid can donate three protons per molecule during the process of ionization. The dissociation of a triprotic acid is shown below;

H₃A -----> H₂A⁻ + H⁺

H₂A⁻ ----> HA²⁻ + H⁺

HA²⁻ -----> A³⁻ + H⁺

The value Ka, is known as the acid dissociation constant. It is found by looking at the equilibrium constant for the dissociation of the acid. The higher the Ka, the more the acid dissociates

A titration curve is the plot of the pH of the analyte solution versus the volume of the titrant added as the titration progresses.

In a titration curve in which base is added to acid, the pH rises slowly until the equivalent point at which point the pH remains constant before it begins to rise again on the addition of more base.

In a titration curve of a monoprotic acid, there is only one region in which the equivalence point is obtained corresponding to the point of acid of dissociation of all its protons.

In the titration curve of a triproprotic acid, three equivalent points are obtained corresponding to the point of dissociation of each of three protons of the triprotic acid.

The titration curves are shown below

6 0
2 years ago
A piece of balsa wood has a mass of 15.196 g and a volume of 0.1266 L. What is the density in g/mL?
Nataliya [291]
Density = mass / volume

Since the answer must be in g/ml
Convert volume to ml
0.1266 x 1000 = 126.6 ml

15.196 / 126.6

= 0.126 g/ml
4 0
3 years ago
Chemistry Help? If emission lines are created in a spectrum when an electron falls from an excited state to a relaxed state, how
Sauron [17]
Well an absorbtion line is a dark line in an absorption spectrum
thats all i can give you right now i didnt quite understand the question but hope it helps
4 0
3 years ago
Using what you have learned about the three forms of writing chemical equations, classify each of the presented equations as eit
suter [353]

Explanation:

Molecular equation: Chemical equation in which molecular formula of reactants and products are written

Complete ionic equation:Chemical equation in which ionic from if reactants reactants and products are written along with spectator ions (ions present on both sides of equation).

Net ionic equation :Chemical equation in which only ions of those reactant are written which giving product without  spectator ions (ions present on both sides of equation).

(a) Ca^{2+}(aq) + SO_4^{2-}(aq)\rightarrow CaSO_4(s)

net ionic equation.

(b) CuSO_4(aq) + 2KOH(aq)\rightarrow Cu(OH))_2(s) + K_2SO_4(aq)

Molecular equation

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Complete ionic equation

3 0
3 years ago
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