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If 15.4 g of CO2 was produced from the thermal decomposition of 39.37 g of CaCO3 then what is the percentage yield of the reaction?
To find the percentage yield, you first need to calculate the theoretical yield of CO2 that would be obtained from the given mass of CaCO3. Then divide the actual yield of CO2 (15.4 g) by the theoretical yield, and multiply by 100 to get the percentage yield. The percentage yield is calculated as (actual yield / theoretical yield) * 100.
What happens when ethanol is mixed with vinegar?
Probably nothing since vinegar is a dilute concentration of acetic acid...However if you had pure acetic acid & ethanol the two would react to form an ester called ethyl acetate at room temperature: CH3CH2OH (ethanol) + CH3COOH (acetic acid) <==> CH3COOCH2CH3 (ethyl acetate) + H2O However since it is an equilibrium reaction you'd have a mixture of the products & reactants & would need to separate the mixture. Under the presence of an acid catalyst (such as sulfuric acid) & continuously removing the water you can increase the yield of ethyl acetate.
If a student used 1.34 g of silver to produce silver nitrate and the actual yield was 2.01 g how do you calculate the percentage yield show the steps?
Percentage yield = (actual yield / theoretical yield) x 100. Theoretical yield of silver nitrate can be calculated using stoichiometry based on the reaction involved. In this case, divide the actual yield (2.01 g) by the theoretical yield (calculated from the balanced chemical equation) and multiply by 100 to get the percentage yield.
Calculate the percent yield of chlorine gas in the decomposition of hydrochloric acid if 25.8 grams of hydrochloric acid produces 13.6 grams of chlorine gas?
Percent yield can be calculated using the formula: (actual yield / theoretical yield) x 100. First, determine the theoretical yield of chlorine gas by finding the molar ratio between hydrochloric acid and chlorine gas. Once you have calculated the theoretical yield, plug the values into the formula to find the percent yield.
What is the percent yield for the reaction if 65.0 g of iron lll oxide produces 15.0g of iron?
Percent yield is calculated by dividing the actual yield by the theoretical yield and multiplying by 100. The theoretical yield can be calculated by stoichiometry. In this case, the theoretical yield of iron would be 43.3g. Therefore, the percent yield would be (15.0g / 43.3g) x 100 = 34.6%.
Can meloxicam yield a positive result on ANA testing?
can taking meloxicam yield a positive result on antinuclear antibody (ANA) test
All amino acid having an aromatic ring give a positive xanthoproteic test under identical condition?
No, not all amino acids with an aromatic ring give a positive xanthoproteic test. The xanthoproteic test is mainly positive for amino acids containing aromatic rings with phenolic groups such as tyrosine and phenylalanine. Aromatic amino acids like tryptophan do not give a positive xanthoproteic test under identical conditions.
What color develops when ninhydrin react with amino acids?
These are the amino acids that will yield positive result to the ninhydrin test: Non-polar amino acids: Glycine, Alanine, Valine, Leucine, Isoleucine, Phenylalanine, Methionine, Tryptophan Polar Neutral Amino acids: Serine, Cysteine, Threonine, Asparagine, Glutamine, Tyrosine Polar Acidic Amino Acids: Aspartic acid and Glutamic acid Polar Basic Amino Acids: Histidine, Lysine, Arginine
What amino acid will yield a positive result with millon's test?
Tyrosine. Millon's Reagent-a solution that is usually made by dissolving mercury in concentrated nitric acid and diluting with water and that when heated with phenolic compounds gives a red coloration used as a test especially for tyrosine and proteins containing tyrosine. (from merriam-webster's medical dicitonary) i hope this will help you.
What samples did not give a positive test with xanthoproteic test why?
The xanthoproteic test is used to detect the presence of aromatic amino acids, particularly tyrosine and tryptophan, by turning yellow upon reaction with nitric acid. Samples that do not contain these amino acids, such as certain non-aromatic amino acids (e.g., glycine, alanine) or peptides and proteins lacking these residues, will not yield a positive test. Additionally, any substances that do not contain proteins or peptides, such as carbohydrates or lipids, will also not give a positive result. Thus, the absence of aromatic amino acids or proteins in the sample is the reason for a negative xanthoproteic test.
When your multiplying a positive and a negative with the answer be a positive?
When you multiply a positive number by a negative number, the result is always negative, not positive. This is because multiplication can be thought of as repeated addition, and adding a negative value reduces the total. Therefore, the product of a positive and a negative number will never yield a positive result; it will always be negative.
What does hydrolysis of a simple protein yield?
Amino acids.
What is the result of hydrolysis of a dipeptide?
Hydrolysis of a dipeptide results in the breaking of the peptide bond between the two amino acids in the dipeptide to yield two separate amino acids. This process requires the addition of water to break the bond, resulting in the separation of the amino acid components.
How do you convert c6h5nh2 to c6h5ococh3?
To convert aniline (C6H5NH2) to phenyl acetate (C6H5OCOCH3), you can follow these steps: First, acetylate aniline using acetic anhydride or acetyl chloride, which will replace the amino group with an acetyl group, forming acetanilide (C6H5NHCOCH3). Next, you can hydrolyze the acetanilide with an acid or base to yield phenyl acetate. This process involves replacing the amine group with an ester group, ultimately giving you C6H5OCOCH3.
What is x divided by negative nine?
X divided by negative nine is expressed mathematically as ( \frac{x}{-9} ) or ( -\frac{x}{9} ). This represents a value that is the result of taking ( x ) and dividing it by negative nine, which will yield a negative result if ( x ) is positive, and a positive result if ( x ) is negative.
What is the product of four negative integers?
The product of four negative integers is always positive. This is because multiplying two negative integers results in a positive integer, and when you multiply two positive integers, the result remains positive. Therefore, the product of four negative integers will yield a positive value.
How do you prepare ethyl methyl ketone from calcium acetate?
Ethyl methyl ketone can be prepared from calcium acetate by reacting it with barium hydroxide to form barium acetate, which can then be treated with sulfuric acid to yield ethyl methyl ketone. The ketone can be further purified by distillation.
