The correct IUPAC name of the following structure CH2=CH2-CH-CH3 is But - 1 - ene
IUPAC rules for alkene nomenclatureThe parent alkene is picked because it has the longest carbon chain with the double bond between carbon atoms.The suffix "ane" of the alkane is transformed to "ene."Depending on whether a double bond appears twice or three times in the parent chain, an alkene is referred to as a diene or triene.the positions of double bonds or side chains, indicated by the numerals 1, 2, 3, etc.Because it is the longest chain and is numbered from that end, the carbon atom in the double bond, which is written just before the suffix "ene," has the lowest number.The carbon chain is numbered so that the substituent receives the lowest number if both sides of a double bond receive the same number.Hence the structure CH2=CH-CH2-CH3 is named on the basis of the above rule as but - 1 - ene.
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Oliver and Mike put some ice into a container and heat it .
Answer:
See below
Explanation:
From the graph: initial temp = -10 ° C
melting occurs at 0 ° C (constant temp process)
at '2' the ice is melting.....going from a solid to a liquid at a constant temperature
In the reaction between CO and Fe3O4 , the theoretical yield in an experiment is calculated to be 47.2 g Fe.
When a chemistry student carries out the experiment, their actual yield is 34.1 g Fe.
Calculate the percent yield (% yield) of Fe
Answer:
Explanation:
34.1 / 47.2 x 100% = 0.07%
The percent yield (% yield) of Fe in a reaction with CO if the theoretical yield in the experiment is calculated to be 47.2 g Fe is 72.25%.
How to calculate percent yield?The percent yield is the percent ratio of the weight of the product obtained to the theoretical yield.
The percent yield can be calculated by dividing the experimental yield by the theoretical yield and multiplying the result by 100 then express the final answer in %.
According to this question, the experimental yield is 34.1g and the theoretical yield is 47.2g. The percent yield can be calculated as follows:
Percent yield = 34.1/47.2 × 100
Percent yield = 72.25%
Therefore, the percent yield (% yield) of Fe in a reaction with CO if the theoretical yield in the experiment is calculated to be 47.2 g Fe is 72.25%.
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Given similar concentrations, the stronger acid corresponds to the lower pH. Comment on the relative strengths of the acids H3PO4, H2PO4^– and H2PO4^2–
Answer:
H3PO4 is stronger than H2PO4- because
H3PO4 dissociation constant is 6.9×10^-3
H2PO4^- dissociation constant is 6.2×10^-8