What is the empirical formula of the compound?

What is the empirical formula of the compound? Topic: What is the empirical formula of the compound?
September 20, 2019 / By Alisha
Question: When a 0.860 g sample of an organic compound containing C, H, and O was burned completely in oxygen, 1.64 g of CO2 and 1.01 g of H2O were produced. What is the empirical formula of the compound?
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Best Answers: What is the empirical formula of the compound?

Uni Uni | 7 days ago
combustion reaction occurs as follows organic compound + O2 --> H2O + CO2 therefore, you need to eleminate the oxygen mass from CO2 and H2O and then calculate the ratios. The reason for this is because the oxygen in H2O and CO2 is not entirely from the compound, but also from combustion O2 to approach this problem, we need to calculate the number of moles of each element in the compound and then figure out their ratio moles of CO2 = mass / molar mass = 1.64g / 44.01g/mol = 0.0372moles one mole CO2 contains one mole carbon moles carbon = (0.0372mol) * 1 = 0.0372........ (1) mass carbon in sample = mass CO2 - mass O = 1.64g - 1.19g = 0.45g repeat the same process for hydrogen in H2O moles H2O = mass / molar mass = 1.01g / 18.0g/mole = 0.0561moles one mole H2O contains two moles hydrogen atoms moles H in sample = 2 * (0.0561moles) = 0.112moles..... (2) mass of oxygen in sample = mass sample - (mass C + mass H) = mass sample - (molar mass*#moles C + molar mass*#moles H) = 0.860g - (12.0*0.0372 + 1.00*0.112) = 0.122g number of moles of O in sample = mass / molar mass = 0.122g / 16.0g/mol = 0.00762moles..... (3) moles C : moles H : moles O 0.0372 : 0.112 : 0.00762 3.72 : 1.12 : 0.762 approximately: 10 : 3 : 2 empirical formula C10H3O2
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Uni Originally Answered: What does an organic compound contain?.HELP PLEASE?
An organic compound is any member of a large class of chemical compounds whose molecules contain carbon and hydrogen; therefore, carbides, carbonates, carbon oxides and elementary carbon are not organic (see below for more on the definition controversy for this word). The study of organic compounds is termed organic chemistry, and since it is a vast collection of chemicals (over half of all known chemical compounds), systems have been devised to classify organic compounds. A few of the compound classes based on the functional groups they carry are as follows: Acid anhydrides Acyl halides Alcohols Aldehydes Alkanes Alkenes Amides Amines Aromatics Azo compounds Carboxylic acids Esters Ethers Haloalkanes Imines Ketones Nitriles Nitro compounds Organometallic compounds Phenols Polymers, including all plastics Thiols many organic compounds are also of prime importance in biochemistry: Many organic compounds are also of prime importance in biochemistry: Antigens Polysaccharides, carbohydrates and sugars Enzymes Hormones Lipids and fatty acids Neurotransmitters Nucleic acids Proteins, peptides and amino acids Vitamins Are enough?Vitamins ,Proteins, peptides and amino acids ,Enzymes ,Hormones ,Lipids and fatty acids .........
Uni Originally Answered: What does an organic compound contain?.HELP PLEASE?
Homework, isn't it? Organic compounds consist basically of carbon and hidrogen links that encase other atomic elements, giving way to molecules much more complex and bigger than those of inorganic componds. The're called 'organic' because they require to exist of induced energy only available in living things; chemical processes alone can't generate such complex substances. One of these are the amoino-acids that constitute your DNA.

Ritchie Ritchie
This is a logical procedure based on the following assumptions: all of the C in the CO2 came from the original sample, and all of the H in the H2O came from the original sample. The difference in mass that these account for is due to the O in the original sample. First calculate the number of moles of CO2 in 1.64g. This is also the number of moles of C in the original sample. Now do the same calculation for H2O in 1.01g. This is the number of moles of H in the original sample. Now use the at wt of C and of H to determine the weight of O and of H in the original sample. The difference is the weight due to O in the original sample. Use the at wt of O to determine how many moles that is. You now have the relative molar proportions of C, H, and O in the original sample. To determine the empirical formula, pick the element representing the lowest molar quantity, and divide each one by that number and finish up by rounding these relative values to their nearest whole number ratios.
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Methuselah Methuselah
An empirical formulation shows a chemical equation utilising the smallest entire form ratios. that's no longer in many circumstances the surely chemical equation. in case you determine the atomic mass of the empirical formulation and the atomic mass of the compound that's ordinary to locate the molecular formulation. If the empirical formulation is C2H5 all of us know the burden of that's 17amu. If all of us know the the compound has an atomic mass of fifty 8, then we are able to divide fifty 8 by potential of the empirical amu, which might bypass away us with 2. this suggests we ought to multiply the empirical formulation by potential of two to get the molecular formulation. subsequently the molecular formulation would be C4H10. you could verify the respond by potential of determining the molecular weight of this compound.
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Methuselah Originally Answered: Is it better to mix baby formula with milk or water? Or should I opt for liquid formula?
I hope that breastfeeding works out for you. However, to answer your original question... For the first 3 months the risks for a fairly rare bacteria is higher. It's a rare bacteria, but if a newborn gets it, they can get very sick and die or be hospitalized. So there are recommendations that you should either use ready-to-feed, concentrated mixed with sterile water, or powder added to HOT water so as to kill the bacteria. It is impossible for powder formula to be sterile, but concentrated and ready-to-feed is normal. However if you make it with hot water then it kills the probiotics and degrades some of the nutrients/vitamins. It's sort of a problem as no one is quite sure which is more important. These prebiotics have been shown to help a formula fed babies gut to be more like a breastfed baby's, and to increase their immunity to diseases. When mixing formula you follow the instructions on the can. It should never be mixed with cow's milk since cow's milk has proteins that are too complex for a baby to digest and can cause anemia. And while cereal can be added for some disorders (some babies have problems like GERD that make doctors recommend adding cereal to the formula, follow your doctor's advice), for most people they shouldn't feed cereals except by spoon starting between 4-6 months. Take 'risks of formula' with a grain of salt. It's politically correct right now to shame and make anyone who feeds any formula feel bad about that choice, and saying "there's risks to all formula" or overplaying risks is one of the ways people do that. Some believe in a pseudoscience called 'open gut theory' that if a baby is fed anything but breastmilk then they don't have a 'virgin gut' and that this can lead to all sorts of problems with allergies and weight, but it's been disproven since babies who were exclusively breastfed to 6 months actually had an increase of allergy risks and weight gain has been shown to be more connected to bottles and bottle feeding habits than what's in the bottle. A recent study showed that the use of formula may help mothers continue to breastfeed if they're having difficulty, but you'd want to use something like a syringe and use a specific plan and a limited amount given after each breastfeeding session, something you can't figure out and use if you plug your ears and close your eyes and pretend that formula doesn't exist! See second link about it. You're not an idiot. My niece exclusively breastfeeds and has breastfed all 4 of her children without having her milk fail, but she also had formula and bottles for those times when she might not get home in time, or something else interfered. She kept her eyes on the prize and she didn't use the formula unless it was an actual emergency and it didn't hurt her breastfeeding. It's like people who say that if you are dieting then you can't have chocolate in the house. My opinion is if you're that weak in your self discipline then you have bigger problems. Breastmilk is the most complete and best food for newborns and babies. However formula is not poison and shouldn't be something you pretend doesn't exist and avoid like it's going to hurt your baby! With every 'risk' someone gives you, do research and read the counter, usually the first link is about the only jumping off place you can find since google is weighted against both sides since it's usually believed that if you don't think formula is going to hurt a baby you're more likely to use it. Still she connects to research you can jump and read and figure it out. Congrats on your baby, and I hope everything goes well. I do hope you have no problems breastfeeding, but if you need to mix formula then I hope this answered questions. And if you make more than enough, see about donating some of it to a milk bank to help out those who can't. :)

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