What is the percent composition of H in C9H20? Record your answer to 2 decimal spaces.

Q: phosphoric acid reacts

A: 3Cu + 2H3PO4>>>>Cu3(PO4)2 + 3H2

Q: QUESTION 5 An unhealthy by-product of combustion is carbon monoxide which occurs in incomplete combu...

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly repos...

Q: forensic chemist is given an unknown substance for analysis. It is suspected that the unknown substa...

A: Given :   Mass of unknown substance = 0.5 g  Mass of benzene = 8.0 g  Freezing point of solution (Tf...

Q: If a 0.59 M solution of a monoprotic acid HA has a pH of 4.57, what is the Ka value of the acid HA?

A: Concentration of Acid HA = 0.59 M pH = 4.57     ICE Table:                                          ...

Q: Rep

A: Y=mx+c where m= slope and C= intercept on y axis ie. m=∆H/R    and C=∆S/R

Q: A 6.785- g sample contain only one volatile substance, MgCO3, was heated in a nitrogen atmosphere fo...

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Q: [Review Toplcs] [References Use the References to access important values if needed for ti Draw the ...

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Q: Calculate the pH of a 0.30 mol/L ammonium nitrate (NH4NO3) solution.

A: Given, pH of the ammonium nitrate (NH4NO3)  solution = ? Concentration of ammonium nitrate (NH4NO3) ...

Q: The rate of a certain reaction is given by the following rate law: rate = k[H,][1.] Use this informa...

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Q: The Ksp value for Cu(OH)2 is 1.6x10‑19 at 25oC, what will the equilibrium concentration of [Cu2+] in...

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Q: Under certain conditions the rate of this reaction zero order in dinitrogen monoxide with a rate con...

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Q: What is the name of the compound below?

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Q: Chloroform liniment contains 30% (v/v) of chloroform. How many mL of chloroform liniment can be prep...

A: Chloroform liniment contains 30% (v/v) of chloroform. 1 lb = 454g

Q: What is the outcome of the reaction sequence shown in the box? 1. Base 2. Allylbromide H3CO 3. НСІ, ...

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Q: 22. What is the coefficient of O2 after the following equation has been properly balanced? C12H26(1)...

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Q: 3. A 5.000 g sample of an organic compound containing C, H, and O atoms was combusted and produced 1...

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Q: by the tube for trapping H20 shows a 13.7-mg increase. A second sample of 121.8 mg is treated with c...

A: Here by applying principle of conservation of atom ,we can determine the percentage of each element ...

Q: Acetic acid has been mixed with isoamyl alcohol to produce isoamyl acetate giving off a banana smell...

A: When acetic acid reacts with isoamyl alcohol produces an ester called as isoamyl acetate. 

Q: Be sure to answer all parts. The reaction of peroxydisulfate ion (S203-) with iodide ion (I ) is S,0...

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Q: What is the compound name of the skeletal structure below?

A:

Q: 5. Solve the Q given the following : 200-g sample of an unknown substance changed, temp from 40°C to...

A:   Given : Mass = m = 200 gram  Final temperature  =  T1 =  25°c Initial temperature =  T2  = 40°c   ...

Q: 3. Find the specific heat of a steel that has a mass of 1.57 kg absorbs net thermal energy of 2.5\ti...

A: Answer:- We can determined specific heat of  steel by using q=mc∆T ...

Q: Br

A: -->Functional group is ketone.  

Q: The thermal efficiency of an ideal Rankine cycle is: a) always less than the thermal efficiency of a...

A:  Carnot cycle : It is a theoretical cycle operating between two reservoir (hot reservoir at T1 and c...

Q: For the reactions below write out the overall reaction and the equilibrium constant expressions for ...

A: Chemical equilibrium is defined as the stage at which both reactant and product are in equilibrium. 

Q: CH3CH2CH2CH2CH2CH2COH  CH3CH2CH2CH2CH2COOH CH3CH2CH2CH2CH2CH2CHCH2 CH3CH2CH2CH2CH2CH2CH2OH a) Whi...

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Q: Draw out the full mechanism between anthracene-9-methanol and n-methylmaleimide

A: We have to predict the mechanism for given reaction.  

Q: 14. 15. Ha PO 16. Br Br (BuONa (2 equiv) t-BUOH heat 17. HO 312 NO2 O2N

A:

Q: Answer questions below showing calculations. 1. Knowing that one mole of KHP, C8H5O4K, reacts with ...

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Q: Q 1. At 291 K, the equivalent conductivities at infinite dilution of HCI NaCl and CH3COONA are 369.3...

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Q: The protein content of the unknown samples were determined using BSA as standard. The absorbance val...

A: Given data for standard:

Q: What is the pH of the solution obtained by mixing 65.00 mL of 0.220 MM HCl and 60.00 mL of 0.125 ...

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Q: Use both the ideal gas equation and the van der Waals equation to calculate the pressure exerted by...

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Q: Solve it asap

A: Suppose a solution contains 0.28 M Pb2+ and 0.50 M Al3+ . Calculate the pH range that would allow Al...

Q: Enter your answer in the provided box. A sheet of gold weighing 9.6 g and at a temperature of 13.6°C...

A: Given,  Mass of Gold, mAu = 9.6 g  Temperature, TAu = 13.6 °C  Mass of iron, mFe = 18.0 g  Temperatu...

Q: An iron ore was analyzed by dissolving a 2.9912-g sample in concentrated HCl. The resulting solution...

A: The mass of the pure Fe2O3 is given as 159.69 g/mol The atomic mass of Iron is 55.847 g/mol The perc...

Q: 4. Calculate the molar concentration of oxygen in water at 25°C for a partial pressure of 0.22 atm. ...

A: The formula used is:-  C = KH P  Where C = concentration  KH = Henry's constant P = pressure 

Q: Ellie Mint is trying to determine the reaction mechanism for the following reaction: 2 H2 + 2 NO—>N2...

A: The rate law of a reaction is determined by the slowest step of reaction. The sum of molecularity of...

Q: Does the effect of intermolecular attraction on the properties of a gas become more significant or l...

A: Gases have negligible intermolecular attractions. The order of intermolecular attractions are in the...

Q: 1. Predict whether the following solutions are acidic, basic, or neutral. Provide explanations to su...

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Q: A 10.0 g of calcium chloride dihydrate, CaCl2•2H2O, in enough water to make exactly 500.0 mL of solu...

A: Given  Mass of solute( CaCl2.2H2O) = 10.0 g Volume of solution = 500.0 mL    = (500/1000) L We know ...

Q: An iron ore was analyzed by dissolving a 1.957-g sample in concentrated HCl. The resulting solution ...

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Q: at rate

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Q: catalytic hydrogenation.

A:

Q: Calculate the mass of 0.11 moles of Cu(NO3)2. grams Give your answer to 2 decimal spaces.

A: Given that , No. Of moles of Cu(NO3)2 = 0.11 moles   

Q: OH

A: The given reaction shows that there is removal of -OH group and introduction of a double bond. This ...

Q: write the nuclear balanced reaction for I-131 undergo a,a,ß,positron emission, y. And determine the ...

A: Write nuclear balanced reaction for I-131 undergo different emissions--

Q: Using the table of standard formation enthalpies that you'll find under the ALEKS Data tab, calculat...

A: Solution -

Q: 7. Identify the element Xwhich forms a polyatomic ion with the following Lewis Structure? [:CI-X-Cl:...

A: Lewis’s structure: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a simpl...

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.