Conversion Factors
Conversion Factors - Related Videos
02:08
Gene Conversion
0 Views •
2020
Other than maintaining genome stability via DNA repair, homologous recombination plays an important role in diversifying the genome. In fact, the recombination of sequences forms the molecular basis of genomic evolution. Random and non-random permutations of genomic sequences create a library of new amalgamated sequences. These newly formed genomes can determine the fitness and survival of cells. In bacteria, homologous and non-homologous types of recombination lead to the evolution of new...
02:08
Gene Conversion
0 Views •
2023
Other than maintaining genome stability via DNA repair, homologous recombination plays an important role in diversifying the genome. In fact, the recombination of sequences forms the molecular basis of genomic evolution. Random and non-random permutations of genomic sequences create a library of new amalgamated sequences. These newly formed genomes can determine the fitness and survival of cells. In bacteria, homologous and non-homologous types of recombination lead to the evolution of new...
01:36
Conversion of Units
0 Views •
2023
Sometimes, there is a need to convert from one unit to another one. For instance, reading a cookbook in which quantities are expressed in units of liters or ounces may require conversion of quantities to cups. Or, when looking up directions on how to get to a location, we may be interested to know how many miles we are going to walk. In this case, we would have to convert units of feet or meters to miles. The first step in the unit conversion is to list the given units and the units required...
13:58
Derivation of Adult Human Fibroblasts and their Direct Conversion into Expandable Neural Progenitor Cells
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Cited by 38 •
2015
Generation of induced pluripotent stem cells provides fascinating prospects for the derivation of autologous transplants. However, progression through a pluripotent state and laborious re-differentiation still hinders clinical translation. Here we describe the derivation of adult human fibroblasts and their direct conversion into induced neural progenitor cells and the subsequent differentiation into neural lineages.
04:01
Factors Affecting Solubility
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2020
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide: This solubility equilibrium may be shifted left by the addition of either silver or iodide ions, resulting in...
FAQs
The ratio must be oriented so the starting unit appears opposite the same unit in the measured quantity. Those units cancel algebraically, while the remaining unit identifies the requested result. Reversing the ratio produces an incompatible unit or an incorrect numerical value, so unit cancellation provides an immediate check on the calculation setup.
A calculation can link multiple relationships in sequence, with each factor converting the unit produced by the preceding step. For example, a quantity may pass through metric units, mass, amount of substance, and molecular-scale units. Writing the entire chain before calculating shows whether every intermediate unit cancels and whether the final unit matches the intended quantity.
In stoichiometry, conversion factors connect measured quantities through chemical relationships, allowing a calculation to move between amounts of substances involved in a reaction. They can be used alongside molar mass or other unit relationships, but the reaction relationship supplies the connection between substances. This makes it possible to interpret a measurement in terms of another chemically related quantity.
Begin by writing the known quantity with its unit and identify the desired final unit. Select a ratio that represents an equivalent relationship, place it so the unwanted unit cancels, and add further factors only when needed. After simplifying units, evaluate the numbers and inspect the remaining unit to confirm that the result answers the original question.
Molar mass provides a conversion between mass and amount of substance, while Avogadro’s number connects amount of substance with the number of particles at the molecular scale. Placing these relationships in a conversion chain lets chemists translate a measured mass into a particle count, or reverse the process, while preserving a clear unit trail.
Density can connect mass and volume, whereas concentration relates the amount of dissolved substance to a solution quantity. Including either relationship in a correctly oriented chain supports solution preparation and interpretation of measured samples. The same unit-based approach also helps compare experimental data and maintain consistent measurements when calculations move between laboratory and industrial settings.