what precautions should be taken while performing the carbon residue test?
1. what precautions should be taken while performing the carbon residue test?
Answer:
Conradson carbon residue, commonly known as "Concarbon" or "CCR" is a laboratory test used to provide an indication of the coke-forming tendencies of an oil. Quantitatively, the test measures the amount of carbonaceous residue remaining after the oil's evaporation and pyrolysis.[1][2][3] In general, the test is applicable to petroleum products which are relatively non-volatile, and which decompose on distillation at atmospheric pressure.[4] The phrase "Conradson carbon residue" and its common names can refer to either the test or the numerical value obtained from it.
Explanation:
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2. Put Sugar in a frying pan, in some time you'll see a black residue. This black residue is: Carbon, Coal, None of the above
Answer:
None of the above
Explanation:
it helps
Explanation:
none of the above
thank you
3. Discuss the gun powder residue test
Gunshot Residue Tests
Gunshot Residue TestsDetection of GSR has two primary objectives: (1) determining if an individual fired or handled a recently discharged firearm or if a surface was in close proximity to a weapon during discharge; and (2) analyzing the pattern of GSR for the purpose of determining the muzzle-to-target distance.
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#CARRY ON LEARNING4. A substance “X” is heated in a dry test tube. It was observed that reddish brown fumes of “Y” were evolved and a residue of “Z” was left out in the test tube. Identify what are X, Y, Z and what is the colour of residue?
Answer:
The residue that is left behind that is PbO, is yellow in colour.
Explanation:hope it help for you:)
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Answer:
The residue that is left behind that is PbO, is yellow in colour.
Explanation:hope it help for you:)
5. Which of the following characteristics fits a nucleoprotein? A. Abundance of basic amino acid residues B. Abundance of acidic amino acid residues C. Nonpolar amino acid residues are inward rather than outward D. Abundance of polar amino acid residues E. Balance of acidic, neutral and basic residues
Answer:
E.Balancr of acidec, neutral and basic residues
6. Differentiate residue or distillate
As nouns the difference between distillate and residue is that
distillate is the liquid that has been condensed from vapour during distillation; normally a purified form or a fraction of an original liquid
while residue is whatever remains after something else has been removed.
7. A client needs a test to determine the amount of residual urine the nurse realizes that this assessment is used to
Answer:
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Explanation:
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8. in a chemical reaction 300 g baking soda mixture containing sodium bicarbonate and vinegar on heating gives 174 g of carbon dioxide gas .what mas of solid residue will left in food?
Answer:
According to law of conservation of mass, total mass of reactants is equal to total mass of products. Here baking soda mixture on heating gives solid residue and carbon dioxide.
Hence the mass of solid residue is 100g−43g=
57
The answer is 57g
Explanation:
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9. Halimbawa ng residuals
Answer:
yan po Tama po ba yan pa BRAINLIEST
Into what hes not not me
Explanation:
husto
10. How to separate filtrate and residue in a mixture?* Boil the mixture. Sieve the mixture. Use filter paper or cloth to separate filtrate and residue Use magnet to separate the filtrate and the residue in a mixture.
Answer:
In science, using a sieve is called filtering. Filtering is the same process as sieving: it separates particles in a mixture according to their size and the size of the holes in the sieve. The filtrate passes through the filter and the residue is left behind in the filter.
Explanation:
I hope it makes sense
11. residue analysis if needed
Answer:
GSRs for Shooting Incident Investigations
GSR analysis can be of great value in helping determine who may have been involved in the shooting and approximate muzzle-to-target distances. However, GSR can be easily lost if not properly collected and protected. In most cases it is advisable to swab the hands of the victim and any potential shooter for the presence of GSR as soon as possible. GSR can be collected by swabbing with 5% nitric acid solution and/or collected on SEM collection disks. See Figure 7.25 for collection of GSR. Collection should be done as soon as possible as GSR will dissipate over a relatively short period of time.
12. Which test to identify a mineral looks at the color of the residue left over afyer the mineral is rubbed on porcelain plate?
Answer:
streak test
The streak test is done by scraping a specimen of the mineral across a piece of unglazed porcelain known as a “streak plate.” This can produce a small amount of powdered mineral on the surface of the plate. The powder color of that mineral known as its “streak.”
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13. What is residual waste
Answer:
Residual waste is nonhazardous industrial waste.
Explanation:
it includes waste material (solid, liquid or gas) produced by industrial, mining and agricultural operations.
14. A molecule of palmitic acid attached to carbon 1 of glycerol moiety of a triacylglycerol is ingested and digested. which of the following molecular complexes in the blood carries the palmitate residue from the lumen of the gut to the surface of the gut epithelial cell
Answer:
A molecule of palmitic acid attached to carbon 1 of glycerol moiety of a triacylglycerol is ingested and digested. which of the following molecular complexes in the blood carries the palmitate residue from the lumen of the gut to the surface of the gut epithelial cell
Explanation:
15. 1. A 50.0-ml sample of sodium carbonate solution was found to have a mass of 50.225 g. When the solution was evaporated to dryness, the mass of the Na2CO3 residue was 2.799 g. Calculate the (a) mass/mass percent concentration, and (b) molar concentration of the solution
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16. the economic resources of the business is 180% of it's residual interest and it's residual interest is 125% of it's economic obligations.How much are the total economic resources and residual interest of the business if it's economic obligations is 320,000?
Answer:
To solve this problem, we can use algebra. Let X be the total economic resources and Y be the residual interest. We can translate the given information into equations:
X = 1.8Y (the economic resources are 180% of the residual interest)
Y = 1.25(320,000) (the residual interest is 125% of the economic obligations)
Simplifying the second equation:
Y = 400,000
Substituting Y into the first equation:
X = 1.8(400,000)
X = 720,000
Therefore, the total economic resources of the business are 720,000 and the residual interest is 400,000.
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17. what is residual heat
(rɪˈzɪdjʊəl hiːt) heat that remains or lingers after something has been hot or heated up. Turn the hotplate off and allow the residual heat to keep the mixture simmering.
Answer:
dominated in shutdown mode. to understand the processes that are reactor
shutdown
18. Example of Residual
Answer:
Residual is something like a left over after other things have been used, subtracted or removed. An example of residual is the paint.
19. Put a little of the HCI and sodium carbonate solution in an evaporating dish. With the use of crucible tongs, hold the dish over a burner flame. Evaporate the solution. Then taste the residue when it is no longer hot. What is the taste?
Answer:Methods of acid-base titration based on a sample dissolution exceeding normal acid, followed by back titration with a standard base is characterised in this experiment. Using bromophenol blue as an indicator, hydrochloric acid solutions were standardised against pure sodium carbonate. Here, we will study the titration of HCl and sodium carbonate in detail.
Aim
Determination of the strength of the diluted hydrochloric acid solution by titrating it against the normal sodium carbonate solution (M/10).
Theory
The hydrochloric acid solution can be titrated using a methyl orange indicator against the sodium carbonate solution. If a slightly acidic solution is titrated with a weak base, the endpoint is slightly acidic. The solution is slightly basic if a weak acid is titrated with a strong base since the salt produced is to a certain degree hydrolyzed. The reaction of sodium carbonate with HCl is given below.
Na2CO3(aq) + 2HCl(aq) → 2NaCl(aq) + CO2(g) + H2O(l)
CO32-(aq) + 2H+(aq) → CO2(g) + H2O(l)
These are the hydrochloric acid and sodium carbonate equations.
In acid-base titrations, the amount of the acid becomes chemically equivalent to the amount of base present. The solution becomes neutral in the event of a strong acid and a strong base titration of the solution.
Materials Required
Burette
Pipette
Conical flask
Burette stand
Funnel
Stirrer
White glazed tile
Measuring flask
Hydrochloric acid
Sodium carbonate
Methyl orange
Watch glass
CLICK THIS LINK TO LEARN MORE:https://www.vedantu.com/chemistry/titration-of-hydrochloric-acid-against-standard-sodium-carbonate
20. What is residue in science??
In chemistry residue is whatever remains or acts as a contaminant after a given class of events.
Residue may be the material remaining after a process of preparation, separation, or purification, such as distillation, evaporation, or filtration. It may also denote the undesired by-products of a chemical reaction.
Residue may refer to an atom or a group of atoms that forms part of a molecule, such as a methyl group.
21. the economic resources of the business is 180% of it's residual interest and it's residual interest is 125% of it's economic obligations. how much are the total economic resources and residual interest of the business if it's economic obligations is 320,000?
Answer:
Here is your answer!
Step-by-step explanation:
Let's solve the problem step by step:
Given:
- Residual interest = 125% of economic obligations
- Economic resources = 180% of residual interest
- Economic obligations = Php 320,000
To find:
- Total economic resources and residual interest of the business
First, let's find the residual interest:
Residual interest = 125% of economic obligations
Residual interest = 125% x Php 320,000
Residual interest = Php 400,000
Next, let's find the economic resources:
Economic resources = 180% of residual interest
Economic resources = 180% x Php 400,000
Economic resources = Php 720,000
Therefore, the total economic resources and residual interest of the business are Php 720,000 and Php 400,000, respectively, when its economic obligations is Php 320,000.
22. example of incinerator residue
Answer:
Ash
Explanation:
residue from fires used for cooking and heating and from on site incineration.
23. Explain the importance of soil biota to phosphorus availability from plant residues, manures, and other organic residues.
↓THE FINAL ANSWER!↓
In a similar vein, one might see the ‘biological universe' in a single gram of fertile soil, approximately a teaspoon in size, containing all the domains (Bacteria, Archaea ) and elements of life! The majority of life on Earth is dependent upon six critical elements: hydrogen (H), carbon (C), nitrogen (N), phosphorus (P), oxygen (O), and sulfur (S) that pass through, and are transformed by, soil organisms (the soil biota). The process of biogeochemical cycling is defined as the transformation and cycling of elements between non-living (abiotic) and living (biotic) matter across land, air, and water interfaces (Madsen 2008). Biogeochemical processes are dependent upon the biota in the soil or pedosphere, the outermost layer of the Earth that is composed of soil and subject to soil formation processes. It exists at the interface of the lithosphere (rock), atmosphere (air), hydrosphere (water), and biosphere (living matter). This article addresses the role of soil biota in the pedosphere using ecological principles that link soil organisms and plants to biogeochemical processes occurring within the soil in natural and managed ecosystems.
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24. 9. The diagram shows the apparatus for separating soil and water. What are the labelled parts?A. A=distillate B=filtrateB. A=filtrate B=residueC. A=residue B=filtrateD. A=residue B=distillate
Answer:
A=residue B=filtrate Or Letter C.
Explanation:
No explanation, that's the correct answer..
#carryOnlearning!!25. Explain the importance of soil biota to nitrogen availability from plant residues, manures, and other organic residues.
sorry po yan lang nakaya ng brainly, I hope it helps, pa brainliest nalang po, THANK YOU!
26. what is meaning of residual
Answer:
residual is something left over after other things have been used, subtract or removed27. What is the taste of the residue?
if the process done is evaporation or distillation of salty water, the residue will be salty since water has evaporated leaving the salt in the evaporating dish or in the distilling flask
28. incenarator residue
Answer:
di ko po alam eh kasi po wala namn po yan dito sa sinasagutan kong papel eh
29. When is a Paraffin Test and Gunshot Residue needed ?
Answer:
A forensic test to indicate whether a person has recently fired a gun, in which the person's hand is coated in hot paraffin wax which cools and sets and is peeled off and tested for the presence of residue from the gun.
Its needed in crime when gunfight is involved.
30. What kind of material was left behind when mixture was heated? A. solid residue B. liquid residue C. gas residue
Answer:
B. liquid residue
Explanation:
say if I wrong
What kind of material was left behind when mixture was heated?
A. solid residue
B. liquid residueC. gas residue
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