Enter the molecular formula for butane, C4H10.
express in a chemical formula

Answers

Answer 1

Answer: Answer: the molecular formula is C₄H₁₀

You can also express it as: CH₃ - CH₂ - CH₂ - CH₃.

Explanation:

1) The molecular formula is the chemical formula for a covalent compound. It shows the elements present in one molecule of the compound: type of atoms and the number of each.

The number of each type of atoms is indicated by the subscript to the right of the symbol.

2) Butane is the alkane with 4 carbon atoms.

3) The general formula for the alkanes is CₓH₂ₓ₊₂, meaning thar for x atoms of C there are 2x+2 atoms of H. Therefore, for 4 C atoms there are 2(4)+2 = 8 + 2 = 10 H atoms.

That is why the molecular formula of butane is C₄H₁₀, meaning that each molecule of this alkane has 4 atoms of carbon and 10 atoms of hydrogen.

The other expression: CH₃ - CH₂ - CH₂ - CH₃, shows that this compounds is a chain, in which each C has 4 bonds, one with other C atom to the right, one with other C atom to the right and the difference (2 or 3) with H atoms.

Answer 2

Answer:

The molecular formula of butane is $\boxed{{{\text{C}}_{\text{4}}}{{\text{H}}_{{\text{10}}}}}$ .

Further explanation:

The molecular formula is a chemical formula that depicts the total number and kinds of atoms present in a molecule. For example, molecular formula of carbon dioxide is ${\text{C}}{{\text{O}}_2}$ .

Hydrocarbon is a term for the organic compounds that consist of hydrogen and carbon only.

Types of hydrocarbons:

1. Saturated hydrocarbons

The simplest hydrocarbons that are composed of only single bonds are called saturated hydrocarbons. These hydrocarbons have the general formula of ${{\text{C}}_n}{{\text{H}}_(2n + 2)}$ , where n is the number of carbon atoms. These hydrocarbons have suffix “ane” in their names. Examples of such hydrocarbons are methane, hexane, and propane.

2. Unsaturated hydrocarbons

These have one or more multiple bonds in them. These hydrocarbons have suffix “ene” or “yne”, depending on whether there is a double or triple bond between them. Hydrocarbons comprising of double bonds are called alkenes and those having triple bonds are called alkynes.

The name of butane includes the suffix “ane”. This implies it is a saturated hydrocarbon and contains only single bonds in it. The prefix “but” indicates the presence of four carbon atoms in this molecule.

Substitute 4 for n in the general formula of alkane $\left( {{{\text{C}}_n}{{\text{H}}_(2n + 2)}} \right)$ to find out the formula of butane.

$\begin{aligned}{\text{Molecular formula of butane}} &= {{\text{C}}_{\text{4}}}{{\text{H}}_{\left( {{\text{2}}\left( {\text{4}} \right){\text{ + 2}}} \right)}}\n&= {{\text{C}}_4}{{\text{H}}_(10)}\n\end{aligned}$

Learn more:

Calculate the moles of ions in the solution: brainly.com/question/5950133
Calculate the moles of chlorine in 8 moles of carbon tetrachloride: brainly.com/question/3064603

Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Stoichiometry of formulas and equations

Keywords: molecular formula, butane, C4H10, 4, ane, ene, yne, alkane, alkyne, alkene, saturated hydrocarbon, unsaturated hydrocarbon.

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What makes up the compound H2O?

Answers

The compound H2O (water) can be made up of two hydrogen atoms and one oxygen atom.

Answer:

2 hydrogen atoms bonded with 1 oxygen atom

Explanation:

In the compound $H_(2) O$ , the number 2 after the H means that there are two atoms in the preceding letter (element), and since there are no numbers ofter the O, that means there is only 1 atom.

In a closed container, the vapor pressure of 10 mL of ethanol at 20 degrees C is 5.85 kPa. What is the vapor pressure of 20 mL of ethanol at the same temperature?

Answers

Answer:

${P_2}=2.925\ kPa$

Explanation:

At same temperature and same number of moles, Using Boyle's law

${P_1}* {V_1}={P_2}* {V_2}$

Given ,

V₁ = 10 mL

V₂ = 20 mL

P₁ = 5.85 kPa

P₂ = ?

Using above equation as:

${P_1}* {V_1}={P_2}* {V_2}$

${5.85\ kPa}* {10\ mL}={P_2}* {20\ mL}$

${P_2}=\frac{{5.85}* {10}}{20}\ kPa$

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Please answer me ASAPA technique that uses a porous barrier (separation with pores) to separate heterogeneous mixtures is _______.

a. distillation

b. chromatography

c. filtration

d. crystallization

Answers

Answer:

c.filtration is the answer

Which type of stoichiometric calculation does not require the use of the molar mass?

Answers

The choices can be found elsewhere and as follows:

a. mass-mass problems
b. mass-volume problems
c. mass-particle problems
d. volume-volume problems

I believe the correct answer is option D. It is volume-volume problems that does not require the use of molar mass. Here you are dealing with molarities and volumes to determine concentrations. Molar mass is not part of any calculations.

Final answer:

The type of stoichiometric calculation that does not require the use of the molar mass is a calculation involving molar or stoichiometric ratios which are derived directly from the coefficients in a balanced chemical equation.

Explanation:

In stoichiometry, there are several types of calculations that can be performed. However, the type of stoichiometric calculation that does not require the use of the molar mass is the calculation involving the molar ratio, or stoichiometric ratio. This refers to the ratio of coefficients in a balanced chemical equation, which we use to determine the relative amounts of each substance involved in a chemical reaction.

An example of this is a balanced equation for the formation of water: H2 + 0.5O2 -> H2O. In this equation, the molar or stoichiometric ratio of hydrogen (H2) to oxygen (O2) to water (H2O) is 2:1:2. If we are given the number of moles of one substance, we can use this molar ratio to find the number of moles of any other substance in the equation, without needing to know their molar masses. This constitutes a stoichiometric calculation without the need for molar mass.

Learn more about Stoichiometric Calculations here:

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Bromine, a liquid at room temperature, has a boiling point of 58° C and a melting point of -7.2° C bromine can be classified as a Compound, impure substance, mixture, or pure substance

Answers

The answer to the chemistry question above would be pure substance. Bromine is classified as a pure substance because only the element is present and there are no other substances added or mixed with it. It is also not a compound because it does not come with another element.

Answer:

pure substance

Explanation:

i just did on edgen

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Answers

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