CHEMISTRY HIGH SCHOOL

The formula for one molecule of sucrose is shown below.C12H22011
How many atoms in all are in one molecule of sucrose?

Answers

Answer 1
Answer:

Answer:

45

Explanation:

There are 12 Carbons

There are 22 Hydrogens

There are 11 Oxygens.

I think the answer is either 0 or 45. But the wording is very sloppy. It is not really atoms that are present. There are ions.

Go with 45 but hold your nose when writing your answer.

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The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlorine. Cl2 ⇌ 2Cl (fast, reversible) Cl + CHCl3 → HCl + CCl3 (slow) Cl + CCl3 → CCl4 (fast) What rate law does this mechanism predict? (Choose from the list below and enter your answers in alphabetical order, e.g. ABC ).

Answers

Answer:

Explanation:

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Q&A Library

The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlorine.Cl2 ⇌ 2Cl (fast, reversible) Cl + CHCl3 → HCl + CCl3 (slow) Cl + CCl3 → CCl4 (fast) What rate law does this mechanism predict?A)kG) [CHCl3]1/2M) [CCl3]2B) [Cl2]H) [CCl3]1/2N) [HCl]2C) [Cl]I) [HCl]1/2O) [Cl2]2D) [CHCl3]J) [Cl2]1/2P) [Cl]2E) [CCl3]K) [Cl]1/2 F) [HCl]L) [CHCl3]2

The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlorine.Cl2 ⇌ 2Cl (fast, reversible) Cl + CHCl3 → HCl + CCl3 (slow) Cl + CCl3 → CCl4 (fast) What rate law does this mechanism predict?A)kG) [CHCl3]1/2M) [CCl3]2B) [Cl2]H) [CCl3]1/2N) [HCl]2C) [Cl]I) [HCl]1/2O) [Cl2]2D) [CHCl3]J) [Cl2]1/2P) [Cl]2E) [CCl3]K) [Cl]1/2 F) [HCl]L) [CHCl3]2

Question

Asked Oct 30, 2019

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The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlorine.

Cl2 ⇌ 2Cl (fast, reversible)

Cl + CHCl3 → HCl + CCl3 (slow)

Cl + CCl3 → CCl4 (fast)

What rate law does this mechanism predict?

A)k G) [CHCl3]1/2 M) [CCl3]2

B) [Cl2] H) [CCl3]1/2 N) [HCl]2

C) [Cl] I) [HCl]1/2 O) [Cl2]2

D) [CHCl3] J) [Cl2]1/2 P) [Cl]2

E) [CCl3] K) [Cl]1/2

F) [HCl] L) [CHCl3]2

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Expert Answer

Step 1

The three step mechanism of the given reaction is,

CL2 dissociate to give chorine a fast and reverse reaction.

React with CHCL3 to give HCL and CCL3 a slow reaction

React with CL to give CCL4.

Step 2

Add equation (1), (2), and (3) to get the overall reaction.

The overall reaction is expressed as,

CL2 dissociate to give chorine a fast and reverse reaction.

React with CHCL3 to give HCL and CCL3 a slow reaction

React with CL to give CCL4.

Step 3

The chlorine atom produced in equation (1) is consumed in equation (3) and CCl3 a molecule is produced in equation (2) is consumed in equation (3).

CL react with CHCL3 to give a reversible reaction of HCL and CCL4.

An atom that has 14 protons and 17 neutrons is an isotope of which element?

Answers

This is an isotope of silicon since it has 14 protons.  for an element, you can have different numbers of neutrons, however, if you change the number of protons the identity of the element changes.

for example, carbon 14 and carbon 12 both have 6 protons.  The only thing that changed was the number of neutrons which went from 6 to 8.

Large cities often have a visible haze hanging in the air high above them. What most likely causes this haze? a. many women's aerosol hairsprays

Answers

Haze is caused by particulate matter from incomplete combustion of car, truck, bus, burning of gasoline and diesel. This could also be caused by the buning of wood, coal, and heating oils from industry, electical generation plants that do not collect some of the pollutants at the smoke stack or exhaust points.

The fuel used in many disposable lighters is liquid butane, C4H10. Butane has a molecular weight of 58.1 grams in one mole. How many carbon atoms are in 4.00 g of butane?

Answers

Matter is made of very tiny particles. One mole of a substance contains a given amount of particles. This number is constant for all particles- 6.022×10^23 , and is called Avogadro's constant. To get the number of particles in 4g of butane, we need to calculate the number of moles represented by 4 g, then multiply by the Avogadro's constant (Since each mole has particles equivalent to the Avogadro's constant) 
Therefore, if 1 mole = 58.1g
                how many moles will be equal to 4g?
                we cross multiply  (4x1) divide by 58.1
                equals 0.068847moles
multiply by Avogadro constant = 4.1466 x 10^molecules
But remember the question is not about the number of molecules in butane, its about the number of carbon atoms. 
Since there are four carbons in butane, and each has  4.1466 x 10^22 atoms
to get the number of atoms, we multiply by four
equals 1.6586 x 10^atoms

\boxed{1.657 * {\text{1}}{{\text{0}}^{{\text{23}}}}{\text{ atoms}}} of carbon is present in 4.00 g of butane.

Further Explanation:

The number of atoms or molecules that can be present in one mole of any substance is determined by a number, known as Avogadro’s number. The numerical value of Avogadro’s number is {\text{6}}{\text{.022}} * {\text{1}}{{\text{0}}^{{\text{23}}}}\;{\text{units}}. Such units can either be atoms or molecules.

The formula to calculate the moles of {{\text{C}}_{\text{4}}}{{\text{H}}_{{\text{10}}}} is as follows:

{\text{Moles of }}{{\text{C}}_{\text{4}}}{{\text{H}}_{{\text{10}}}} = \frac{{{\text{Given mass of }}{{\text{C}}_{\text{4}}}{{\text{H}}_{{\text{10}}}}}}{{{\text{Molar mass of }}{{\text{C}}_{\text{4}}}{{\text{H}}_{{\text{10}}}}}}                                                       …… (1)

The given mass of butane is 4.00 g.

The molar mass of butane is 58.1 \text{g/mol}.

Incorporate these values in equation (1).

 \begin{aligned}{\text{Moles of }}{{\text{C}}_{\text{4}}}{{\text{H}}_{{\text{10}}}} &= \left( {{\text{4}}{\text{.00 g}}} \right)\left( {\frac{{{\text{1 mol}}}}{{{\text{58}}{\text{.1 g}}}}} \right)\n&= {\text{0}}{\text{.0688 mol}}\n\end{aligned}

The number of molecules present in one mole of butane is {\text{6}}{\text{.022}} * {\text{1}}{{\text{0}}^{{\text{23}}}}\;{\text{molecules}}. So the expression to calculate the number of molecules of butane is as follows:

{\text{Molecules of butane}} = \left( {{\text{Moles of butane}}} \right)\left( {{\text{Avogadro's Number}}} \right)                …… (2)                

The number of moles of butane is 0.0688 mol.

The value of Avogadro’s number is {\text{6}}{\text{.022}} * {\text{1}}{{\text{0}}^{{\text{23}}}}\;{\text{molecules}}.

Incorporate these values in equation (2).

\begin{aligned}{\text{Molecules of butane}}{\mathbf{ }}&=\left( {0.0688{\text{ mol}}} \right)\left( {\frac{{{\text{6}}{\text{.022}} * {\text{1}}{{\text{0}}^{{\text{23}}}}{\text{ molecules}}}}{{{\text{1 mol}}}}} \right)\n&= 4.143 * {\text{1}}{{\text{0}}^{{\text{22}}}}{\text{ molecules}}\n\end{aligned}  

A molecule of butane consists of four carbon atoms in it. So the number of carbon atoms can be calculated as follows:

 \begin{aligned}{\text{Atoms of carbon}}&= \left( {4.143 * {\text{1}}{{\text{0}}^{{\text{22}}}}{\text{ molecules}}} \right)\left( {\frac{{{\text{4 C atoms}}}}{{{\text{1 molecule of butane}}}}} \right)\n&= 1.657 * {\text{1}}{{\text{0}}^{{\text{23}}}}{\text{ C atoms}}\n\end{aligned}

Learn more:

  1. How many grams of potassium were in the fertilizer? brainly.com/question/5105904
  2. Determine how many moles of water produce: brainly.com/question/1405182

Answer details:

Grade: Senior School

Chapter: Mole concept

Subject: Chemistry

Keywords:4.00 \text{g}, 58.1 \text{g/mol}, butane, C4H10, Avogadro’s number, 1.657*10^22C atoms, moles, one mole, chemical formula, carbon atoms, molar mass of C4H10, given mass of C4H10.

How can states of matter be helpful in life?

Answers

you will know that there is a long period where the temperature stays the same before any change in state of matter, and will not appear stupid in conversations

States of matter is useful in life because without solids we would have no cups shoes or tables and without liquids we wont be able to survive because we need water aka LIQUID to survive and without gases we wouldnt be able to breathe.

What is the solute and the solvent in a carbonated drink?

Answers

The solvent is water. The solutes may include fruit juice, natural and artificial flavors, natural and artificial colorings, preservatives, carbon dioxide, and lots and lots of sugar.
The solvent is: Water 
The solute is : sugar any sweetener in the drink 
:P
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