Organic Chemistry

When installing a new liquid propane gas cylinder, the pressure relief valve should point away from any ignition sources, buildings, or high-traffic areas. It should be positioned in a safe direction where any released gas will not cause harm or damage.

THE QUESTION !!!

A student wanted to find the mass of calcium carbonate in an indigestion tablet. She crushed up a tablet and added an excess of HCL acid (25cm3 of 1.00 mol/dm3). She the titrated the excess against 0.5 mol/dm3 of NaOH requiring 25.8cm3 of the NaOH. Calculate the mass off calcium carbonate in the tablet.

No. Acetic acid (CH3COOH) is a weak acid, however, sodium acetate (CH3COONa) is a salt or ionic compound formed in a neutralisation reaction (proton transfer reaction, or simply put: reaction between an acid and a base). For example: CH3COOH (aq) + NaOH (aq) --> CH3COONa (aq) + H2O (l)

Since the sodium acetate is in aqueous solution (dissolved in water), it will actually have a pH that is slightly basic (ie: less than 7). This is due to the pH of salt solutions of some salts being other than neutral (pH of 7) but that is another question entirely.

Hope that this helps.

When urea is added to soda lime and heated, it produces ammonia gas which has a pungent odor similar to strong household cleaning products. It is important to ensure proper ventilation when working with these substances to avoid inhaling the fumes.

Well, honey, using scrap iron to get copper is economical because iron is cheaper than copper, so it's a cost-effective way to get your hands on some shiny copper without breaking the bank. Plus, recycling scrap iron is good for the environment, so you can feel like a frugal eco-warrior while you're at it. Just make sure you know what you're doing so you don't end up with a hot mess instead of a copper treasure.

Colloids and suspensions are both heterogeneous mixtures where particles are dispersed within a medium. However, colloids have smaller particles that do not settle out over time due to Brownian motion, while suspensions have larger particles that settle out due to gravity. Both colloids and suspensions can scatter light, making their solutions appear cloudy or opaque.

Alcohols ; usually shown as R - CH2OH

As 'R--Oh' it could be an hydroxy functional group, on a much larger molecule./

Functional Group

ALKANES ; C-C

ALKENES ; C=C

ALKYNES ; C///C ( Triple Bond)

ALCOHOLS ; R-=CH2OH

ALDEHYDES ; R-CHO

CARBOXYLIC ACIDS ; R-COOH

AMINES ; R-CH2NH2

NITRILES ; R-CN

These are just some of the simpler functional groups, and there chemical formula shorthand representation.

N2O3 is a pale blue solid. Above its melting point of -100 0C it dissociates

N2O3 <-> NO + NO2

At low temperatures the liquid is quite an intense blue but fades to a greenish colur due to the presence of NO2.

Brown monomeric NO2 is in equilibrium with its dimeric form colourless N2O4

Root Beer and Dr Pepper float when placed in water because they are less dense than water. The carbonation in these drinks creates bubbles, increasing buoyancy and causing them to float. Additionally, the sugars and other ingredients in the drinks contribute to their overall density, making them less dense than water.

Formaldehyde has a specific density of 812.14 kilograms per cubic meter; this converts to 6.7776368 pounds per US gallonFormaldehyde has a density of 1.08 - 1.09 g/ml at 20 degree centigrate.

Nicotine can be synthesized in a laboratory setting and is also found in small amounts in other plants, such as tomatoes, potatoes, and eggplants. However, the amount of nicotine present in these sources is significantly lower than in tobacco.

No, formic acid (HCOOH) does not undergo the Fehling's test because it does not contain an aldehyde or ketone group necessary for the reaction to occur. The Fehling's test is specifically used to detect the presence of reducing sugars that possess an aldehyde or ketone functional group.

Not all esters are derivatives of carboxilic acid, they could also be derivatives of phosphoric, sulphuric or carbonic (etc.) acids. However, they are called derivatives of 'X' acid because they are formed by reacting an oxoacid ('X') with a hydroxyl compound (alcohol or phenol).

See the related link and related question for more information about how esters are synthesized.

The property of gases being compressible allows them to be densely packed into small volumes, such as cylinders. This means that gas particles can be squeezed close together, reducing the overall size of the gas. This compressibility allows for the storage of large volumes of gases in relatively small containers.

An example of an organic gas used in anesthesia is desflurane. Desflurane is an inhalation anesthetic that is commonly used for general anesthesia during surgery. It is known for its rapid onset and recovery time.

In organic chemistry, the anomeric effect or Edward-Lemieux effect is a stereoelectronic effect that describes the tendency of heteroatomic substituents adjacent to a heteroatom within a cyclohexane ring to prefer the axial orientation instead of the less hindered equatorial orientation that would be expected from steric considerations.

This effect was originally observed in pyranose rings by J. T. Edward in 1955; at that time, N.-J. Chii and R. U. Lemieux began to study the anomerization equilibria of the fully acetylated derivatives of several aldohexopyranoses. The term "anomeric effect" was introduced in 1958.

The anomeric effect received its name from the term used to designate the C-1 carbon of a pyranose, the anomeric carbon. Isomers that differ only in the configuration at the anomeric carbon are called anomers.

Compound lipids are a type of lipid that consist of a combination of fatty acids, alcohol, and other molecules like phosphate or sugars. They include phospholipids and glycolipids, which are essential components of cell membranes and are involved in various cellular functions.

No, chemical engineering and MSc in Chemistry are different fields. Chemical engineering involves the design and operation of processes for producing chemicals and materials, while MSc in Chemistry focuses on the study of the composition, structure, properties, and reactions of substances. Chemical engineering often involves more process and application-oriented studies, while chemistry focuses more on theoretical and experimental aspects of the discipline.

Glucose is a Chiral molecule having 4 chiral carbons.

Markonikov's rule is related to addition reactions so its reverse should be related to elimination reaction so it may be Saytzef's rule which states that during elimination reaction hydrogen is removed from that carbon atom which has the lesser no of hydrogen atoms.

Saturated aliphatic compounds have single bonds because all carbon atoms in the molecule are connected by single covalent bonds, resulting in each carbon atom having four single bonds and being saturated with hydrogen atoms. The lack of double or triple bonds between the carbon atoms allows the molecule to be more stable and less reactive compared to unsaturated compounds.

Petrol and kerosene can be separated by a process called fractional distillation. Since there is a 25-degree Celsius difference in their boiling points, they can be heated, and the component with the lower boiling point (in this case petrol) will vaporize first and can be collected separately, leaving kerosene behind.