what is the percent by mass of oxygen in citric acid? (MM=192.12 g/mol)

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Q: ÇH,CH, CH, CH,CH,CCH,CH,CHCHCH,CH,CH, CH,CH, CH,CH, d. CH,CH,C(CH,CHaCH(CH)CH(CH,CH,CHa2

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Q: A sample of neon initially has a volume of 2.50 L at 10. "C What final temperature, in degrees Celsi...

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Q: Suppose you mix 100.0 g of water at 25.0 °C with 75.0 g of water at 71.1 °C. What will be the final ...

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Q: If 100 ml of a solution contain a mixture of 0.158 g KMnO4 and 0.490 g of K2Cr2O7,  a. What is the n...

A: Given that 100 ml of a solution contain a mixture of 0.158 g KMnO4 and 0.490 g of K2Cr2O7. Molecular...

Q: What is the photon energy of light with a wavelength of 959 nm?

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Q: ce the reagents below in the correct order necessary to accomplish the transformation shown in the b...

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Q: 1. (a) Briefly explain the scintillation methods for radiation detection and counting. h) Discuss th...

A: This Question is based upon Nuclear Chemistry.

Q: A reaction has a ∆Horx = −70 kJmol and an equilibrium constant K =2.4 × 102 at 500 K. What is ∆Sorx...

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Q: A About the Program | College of X e Minors for Nol A www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNs...

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Q: 1 ΔΙΝΟ] A[02]_ 1 A[NO2] rate = 2 Δt At At

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Q: Part A For the reaction A +B+C-→D+E, the initial reaction rate was measured for various initial conc...

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Q: The first table is for masses after heating. We are doing loss on ignition. I want the calculation f...

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Q: Explain why 1-ethylpropene is the incorrect name for the following molecule. Provide the correct nam...

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Q: If you have a solution with 1 mole of acetic acid HC2H3O2, which of the following can be added to ma...

A: We have to predict the chemical added to make a buffer solution.  

Q: How many calories would be required to melt 45g of water?

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Q: 4. What mass of HCI(g) must be dissolved in 1.50 Lof a NaOH solution having a pH of 11.176 to produc...

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Q: Consider the following data on some weak acids and weak bases: acid base K. K, name formula name for...

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Q: A jet airplane reaches 887. km/h on a certain flight. How long does it take to cover 454. m? Set the...

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Q: Synthesize pyrrolidin-2-yl-methanol from pyrrole. For this you need 4 reactions (A, B, C and D). Wri...

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Q: standard deviation

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Q: symmetry elements Point group Lewis structures NHCI CO SiFs F

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Q: In the lab, a student generates 0.450 g of a product in an experiment. The student then calculates t...

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Q: What mass of H2SO4 would be required to prepare 750. mL of a 0.150 M H2SO4 solution?

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Q: In order to prepare 150.00 mL of 0.04% bromthymol blue (BB) solution from a 2.00% stock BB solution,...

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Q: A blood sample contains 9.2 mM of glucose. If the molar mass of glucose is 180 g/mol, what is the bl...

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Q: buffer is prepared by adding 20.0g of sodium acetate to 500mL of a 0.150 M acetic acid solution.  D...

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Q: A 25.00 ml solution of 0.1000 M HF, hydrofluoric acid (Ka 6.8 x 104) is added to 12.50 mL solution o...

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Q: Be sure to answer all parts. The thermal decomposition of phosphine (PH,) into phosphorus and molecu...

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Q: In the combustion of methane, how many moles of O, are required if 6.75 mol of CH, is to be complete...

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Q: How do soaps made from vegetable oils differ from soaps made from animal fat? 79

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Q: Problem #1 Provide full IUPAC names for each of the following molecules: a) H3C. b) H3C. H. ČH3 ČH3

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Q: 1. A solution containing 1.0% (w/v) MgCl2 has a lower concentration compared to a 1.5M MgCl2 solutio...

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Q: 9. Show the dipole moment of each bond and then predict the overall molecule as either being polar o...

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Q: Twist: 1H Draw the twist form of cyclohexane PART TWO: CHLOROCYCLOHEXANE 2A Draw the model of chloro...

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Q: What's the stablest conformation Newmann projection for this molecule looking down the C3-C4 bond?

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Q: The activation energy of a certain reaction is 36.3 kJ/mol. At 22 °C, the rate constant is 0.0180s. ...

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.