What weight of pyrite ore (impure FeS2) should be taken for analysis that the no. of centigram of precipitated BaSO4 will be twice the percentage of FeS2?

Q: A(n) 8.40-mol sample of carbon monoxide was stored in a 30.0-L container at 52.0°C. What is the pres...

A:   Given :  n = 8.40 mole  V = 30.0 L  T = 52 .0°c   T= 52.0 + 273.15 k   T = 325.15 k  R = 0.082 atm...

Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 3....

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Q: 4b. monosubstituted benzene NO2

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Q: Para formaldehy de Di ethyl amine EtoH, 70c Mechanism?

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Q: 10. Write the Bohr Representation, the electron configuration (s,p,d,f) and the atomic box configura...

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Q: Balance the following equations. 1. Fe+ Cl2 ---→ FeCl3 2. Fe+ 02 ---→ Fe203 3. FeBr3 + H2S04 --→ Fe2...

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Q: 9. Given 2Als) + 3/2 O2(g) → Al2O3(s) AH = -1670 kJ What is AH for the reaction? 2Al2O3(s) → 4Al(s) ...

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Q: 10. Draw the following compounds. Make sure to describe the hybridization, the shape, whether it is ...

A: Hybridization is determined with the help of number of sigma bonds formed by atom and number of lone...

Q: HO.

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Q: A student determines the value of the equilibrium constant to be 7.69x10-37 for the following reacti...

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Q: Exercise 4. Write the IUPAC names of the following aromatic compounds. 4a. polyaromatic

A: The naming of an organic compound can be done with help of rules of international union of pure and ...

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Q: Ammonium phosphate ((NH) PO, is an important ingredient in many fertilizers. It can be made by react...

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Q: 5. Calculate the heat of neutralization for limewater, Ca(OH)2(aq), and hydrochloric acid, HCl: Ca(O...

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Q: Part A lodine atoms will combine to form I2 in liquid hexane solvent with a rate constant of 1.5 x 1...

A: Given data : 

Q: The equilibrium constant, Kc, for the following reaction is 1.20×102 at 500 K. PCI5(g) PCI3(g) + Cl2...

A: We have to calculate the equilibrium concentration of different species.  

Q: Draw tructu f he ajor rganic roduct f he ollowing reaction. CH2 1. Hg(OAc)2, H20 2. NaBH4 CH3 • In c...

A: Hg(OAc)2 along with water and followed by NaBH4 are used to oxidize an alkene to alcohol. 

Q: The equilibrium constant Kp for the interconversion of phosphorous pentachloride and phosphorous tri...

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Q: Please calculate the molar solubility of HgBr2 (K sp = 6.20 x 10-20 ) in a 2.58 molar FeBr3 solution...

A: Given :: Ksp of HgBr2 = 6.20×10-20  [FeBr3] = 2.58 M molar solubility of HgBr2 = ?

Q: Write the net ionic equation for when aluminum nitrate and sodium hydroxide are mixed in aqueous sol...

A: Given; name of compound

Q: Predict the products of the reaction below. That is, complete the right-hand side of the chemical eq...

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Q: I need help calculating the percent deviation please. reaction equation - 2 MnO4− + 5 C2O42− + 16 H+...

A: We would use formula of percent deviation to calculate percent deviation in Molarity of KMnO4. 

Q: 7. 235U + on 951 42Mo + 2 n 8. Li + on He + 19. Li + H Be + 20. 1sb + on 122, 51Sb + -> 21. Pb je + ...

A: "To get remaining sub-parts solved please repost the complete question and mention the sub-parts to ...

Q: For the redox reaction given below complete the following: FeCl2 + H2O2 + H* → FeCl3 + H2O (a) What ...

A: Given : We have to write the species which undergo oxidation , reduction.

Q: What is the possible identity of the amino acid? [Select] What is the isoelectric point of AA? [Sele...

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Q: How is Polycarbonate made? What is the structure of the Monomer? What is the structure of the polyme...

A: Polycarbonate is a type of polyester made by condensation of carbonic acid  or carbonyl chloride and...

Q: 1. Iodyrite: AgNO3 (aq) + NaI (aq) Names: and Colors: and Species Initially Present: Evidence of Rea...

A: In the net ionic equation, we remove all the spectator ions and only write the ions participating in...

Q: Questions 6a, b, c, d is finked to one another and focus on the molecule shown belc H. ба) Before we...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: When KNO3 is dissolved in water, the resulting solution is significantly colder than the water was o...

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Q: Consider the reaction below which is the oxidation of sulfur dioxide to sulfur trioxide.  This react...

A: 2SO2(g) + O2(g) ---> 2SO3(g) Reaction is exothermic.  

Q: Please sort the following ionic salts from most to least soluble Most Soluble | CoS CoS Ksp = 3 x 10...

A: Ksp or solubility product gives a measure of the degree to which a sparingly soluble salt dissociate...

Q: Hexane has several isomers. Which of the following condensed formulas is not an isomer of hexane? O ...

A: Isomers: Chemical compounds that have identical chemical formulae but differ in properties and the a...

Q: 4. Draw 3 resonance structures for each framework, indicate all formal charges, and circle preferred...

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Q: HiIhe the Kumber of electrons in each energy shell. If there are no electrons in an energy shell, en...

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Q: 4) Would you expect cis-1,2-dimethylcyclohexane and trans-1,2-dimethylcyclohexane to have a good sep...

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Q: Beaker # Volume of 0.25 M HC,H302 (mL) Volume of 0.25 M NaC H302 (mL) 40.00 0.00 32.00 8.00 24.00 16...

A: Since you have posted a question with multiple sub-parts with multiple questions, we will solve the ...

Q: Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer...

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Q: Chapter 4 - Chair and Boat conformations of cyclohexane, mono-, di- and tri- substituted cyclohexane...

A: Conformation- Shape adopted by the molecules caused by rotation around one or more single bond is kn...

Q: The equilibrium constant, Kc, for the following reaction is 1.80x10-2 at 698 K. Calculate Kp for thi...

A:   Relation between Kp and Kc is  Kp = Kc (RT)∆ng   where  ∆ng  = No.of moles of gaseous products - N...

Q: СООН 12 2 1

A: Answer of this question :- 

Q: Inside a closed container the pressure of a gas sample is 37.8 atm with a volume of 0.2 L. Upon open...

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Q: A sample of neon is at 75°C and 115 kPa. If the pressure changes to 127 kPa and the volume remains c...

A: Given :-  initial temperature = 75°C  initial pressure = 115 kPa  final pressure = 127 kPa  To find ...

Q: How many atoms of Pb are present in 254 grams Pb?

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Q: An aqueous solution at 25 °C has a OH concentration of 3. x 10 M. Calculate the H,0' concentration. ...

A: To find out H3O+ concentration, use the formula which contains Kw, H3O+ and OH- in it and solve for ...

Q: (Q6) If the equilibrium pH of an aqueous solution is 1.72 and the solution is 0.382 M in formic acid...

A: Given ; pH = 1.72

Q: Oxidation number of C in H½CO3 is Answer:

A: Given : We have to tell oxidation number of C in H2CO3.

Q: ) Draw structures for these compounds: (i) 1,4-dichlorobenzene (p-dichlorobenzene) (iii) trans-1,3-d...

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Q: The total pressure exerted by three gases (oxygen, hydrogen, and argon) inside a closed container is...

A: Total pressure P total =  103 atm Poxygen  = 67 atm P hydrogen = 8.9 atm Pargon = to find. 

Q: A student ran the following reaction in the laboratory at 1152 K: 2502(g) + 02(g) = 2s03(g) When she...

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Q: Exercise 3. Write the IUPAC names of the following cyclic compounds. Br

A: