Table of Contents
What is the formula for the compound methane?
CH₄
Methane/Formula
What is the relationship between the strength of the intermolecular forces and the number of carbon atoms in the different hydrocarbon molecules?
The number of carbon atoms present in an alkane has no limit. Greater numbers of atoms in the molecules will lead to stronger intermolecular attractions (dispersion forces) and correspondingly different physical properties of the molecules.
What is the hydrocarbon formula?
They are composed entirely of single bonds and are saturated with hydrogen. The formula for acyclic saturated hydrocarbons (i.e., alkanes) is CnH2n+2. The most general form of saturated hydrocarbons is CnH2n+2(1-r), where r is the number of rings. Those with exactly one ring are the cycloalkanes.
Why is bromine written as Br2?
a) Why is bromine written as Br2 on the right side? Bromine is a diatomic molecule and always needs to be bonded to something; even bonding to itself works. The Br is already bonded to something else (the Li). If it were written LiBr2 it would not be a neutral compound.
What is the charge of bromine?
1-
Table of Common Element Charges
| Number | Element | Charge |
|---|---|---|
| 35 | bromine | 1-, 1+, 5+ |
| 36 | krypton | 0 |
| 37 | rubidium | 1+ |
| 38 | strontium | 2+ |
What is the name CH4?
Methane
Methane/IUPAC ID
Why are bond line structures zigzag?
Bond-Line (a.k.a. zig-zag) Formulas This formula is full of bonds and lines, and because of the typical (more stable) bonds that atoms tend to make in molecules, they often end up looking like zig-zag lines. This is done because it is not always clear if the non-carbon atom is surrounded by lone pairs or hydrogens.
What does the reaction between an organic acid and an alcohol produce?
Description: When a carboxylic acid is treated with an alcohol and an acid catalyst, an ester is formed (along with water). This reaction is called the Fischer esterification. Notes: The reaction is actually an equilibrium. The alcohol is generally used as solvent so is present in large excess.
Why are hydrocarbons so flammable?
Hydrocarbons are flammable because the carbon in their structure is in the most reduced form. Hydrocarbons are a class of organic compounds that contain just carbon and hydrogen. As a matter of fact, flammability is a property of hydrocarbons, and the reaction is called a combustion reaction.
How many atoms are in mono?
3.2: Molecules and Chemical Nomenclature
| The Number of Atoms of an Element | Prefix |
|---|---|
| 1 | mono- |
| 2 | di- |
| 3 | tri- |
| 4 | tetra- |
How do you calculate CFH from BTU?
The equation explains that one cubic foot per hour, or CFH, is equal to 1,000 BTU of natural gas or 2,500 BTU of liquid propane when exposed to the environment. Multiply the BTU number that needs to be converted by the correct factor from the equation, depending on whether natural gas or liquid propane is being used.
What is the function of CfH in the complement system?
The CFH gene provides instructions for making a protein called complement factor H. The complement system is a group of proteins that work together to destroy foreign invaders (such as bacteria and viruses), trigger an inflammatory response, and remove debris from cells and tissues. What is CFH in gas flow rate?
How to calculate CfH in gas flow rate?
A therm’s worth of natural gas contains 96.7 cubic feet/therm, or about100 cubic feet/therm. To calculate the CFM (ft3/min) or CFH (ft3/hr) for 500,000 BTUs per hour of Methane we have: 500,000 BTU/hr ÷ 100,000 BTU/therm = 5 therms/hr. Is CFM a mass flow rate?
How many CFH are in one atmosphere per hour?
The BTU’s per hour unit number 2.72 Btu/h converts to 1 atm cfh, one atmosphere cubic foot per hour. In this manner, what is CFH in natural gas? A therm’s worth of natural gas contains 96.7 cubic feet/therm, or about100 cubic feet/therm.