The nitrogen content of (NH 4 ) 2 SO 4 is: O a. 10.6 % N b.21.2 % N O c. 30.2 % N O d.4.2 % N

Q: Part A Propose a mechanism for the following reaction CH CH

A: The mechanism can be shown as:  

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A: According to Kohlrauschs law  molar conductivity of an electrolyte at infinite dilution is equal to ...

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A: Entropy is the measure of randomness and thus gases have the highest entropy among the solids, liqui...

Q: calculate the concentration of the unknown KMnO4 solution in ppm

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Q: 03 CN What acid-base theory is involved here? The conjugate base of which acid is relatively more st...

A: This question is abased on the Bronsted lowry concept. According to which if a compound guves H+ it ...

Q: What is the purpose of the salt bridge in an electrochemical cell?     To maintain electroneutrali...

A: Below attached file showing the details answer. All the best.   

Q: Consider the following reaction. cat. ACOH el H2N-NH2 Toluene (reflux, remove H2O) a. Draw a reasona...

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Q: Consider the reaction: 2 Co(g) + 02(g) = 2 CO2(g) What will be the shift in equilibrium if some O2 i...

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Q: (SPM10-29] Which equations represent double decomposition reactions that form a precipitate? Na So. ...

A: Given reactions are : I. CuSO4 + Na2CO3 -------> CuCO3 + Na2SO4  II. CuSO4 + Mg(NO3)2 ------->...

Q: 3. Rank the following in order of increasing acid strength (1-weakest acid, 15 strongest; add rank n...

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

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Q: Define Le Chatlier’s Principle.

A: Since you have posted multiple questions, we are entitled to answer the first only.    

Q: Which is NOT true about stock solutions? A Must be rarely touched during experiments B Cannot be con...

A: Stock solution is a concentrated solution that is prepared well in advance. It is then used to prepa...

Q: It is possible to ignite diethyl ether at temperatures lower than +35 degrees Celsius. True or Fals...

A: Complete solution is given below in next step   

Q: Question 17 The amount of substance formed or consumed at the electrodes is proportional to the quan...

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Q: Answer the expression below with the appropriate number of significant figures. 2.4 x 10-4 + 3.1 x ...

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Q: A 4.50-mol sample of HI is placed in a 1.00-L vessel at 460°C, and the reaction system is allowed to...

A: Given,  Initially moles of HI = 4.50  And volume= 1.00L  At equilibrium moles of H2 and I2 = 0.343

Q: 5. Determine the concentration in mol/L (M) of a solution of 18.25 g of HCl in 250.0 mL of water and...

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Q: The reaction between selenous acid and the iodide ion in acid solution is H2SEO3(aq) + 61 (aq) + 4H*...

A: Answer: To find out the effect of change in concentration of iodide ion on rate of reaction, we need...

Q: An analyst obtained the following data for the percent compound Z in triplicates (n-3) of an insecti...

A: Solution                       Given that          Z in triplicattes (n) = 3 Hence option( D) is co...

Q: formula for a compound is given as C₂H₁₂O₆. This is a (an)

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Q: About 50% of ucunary.calaulikidncystones).consist of calcium phouphale, Ca(PD.) The nomal mid-cange ...

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Q: 4. What is the molarity of K* in a solution that contains 63.3 ppm of K3Fe(CN)6(329.3 g/mol)?

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Q: Draw the resonance interaction that lessens the electrophilicity of the carbonyl using the structure...

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Q: 1. I. Press Tare II. Weigh container and sample II. Weigh container A) II, II, I B I, II, II c II, ,...

A: First  put  weigh container  on the balance then press tare button after that we will weigh both  co...

Q: WHICH OF THE FOLLOWNG PHYSICAL PROCESSES IS EXOTHERMIC? A. BOILING OF WATER B. MELTING OF ICE C.E...

A:   WHICH OF THE FOLLOWNG PHYSICAL PROCESSES IS EXOTHERMIC? BOILING OF WATER, MELTING OF ICE EVAPORATI...

Q: Answer highlighted questions please) A 50.050.0 mL solution of 0.1390.139 M KOHKOH is titrated with...

A: Volume of KOH = 50.0mL or 0.050L Molarity of KOH = 0.139M Number of moles of KOH = 0.050 × 0.139  = ...

Q: Which is the correct mass percentage of hydrogen in acetamide, C₂H₅NO?

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Q: Gaseous ethane (CH, CH,) will react with gaseous oxygen (O,2) to produce gaseous carbon dioxide (CO,...

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Q: Consider the reaction: N204(g) 2 NO2(g). What is AS° at 25 °C? AHf, KJ mol-1 AGf, kJ mol-1 NO2 33.85...

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Q: An element has three isotopes with the following masses and percent natural abundances. Determine th...

A: Given that,

Q: Consider the titration of 80.0 mL of 0.100 M Ba (OH), by 0.400M HCl. Calculate the pH of the resulti...

A: We have to find the pH for the given solution.,  

Q: alt A solution was prepared by dissolving 1.058 g of NAOH pellets with 100 mL of distilled water and...

A: Here 1.058 gram of NaOH pellets was dissolved in 100 ml distilled water and then transferred to 250m...

Q: 3. Find the molar absorptivity Concentration Measured coefficient, the R? assuming that the path len...

A: To find out molar absorptivity, first draw the graph for given data and then solve all the questions...

Q: Create 3 different lewis structures that are not resonance structures for a compound. Note that the ...

A: The three Lewis structures fulfilling all the requirements are drawn in the following step. 

Q: How do we express the independent variable in Kolrausch plot? Reciprocal concentration Square root o...

A: Dr

Q: Which of the following is the best option for transferring 20 mL of a solution? A Use a 5mL serologi...

A: The transfer of liquids and solution uses various types of apparatus and instruments depending on th...

Q: How many grams of CuCl2 (MW = 134.45 g/mol) is needed to prepare 100.0 mL of 0.2418 M CuCl2?

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Q: When Compound A and Compound B are reacted with NBS both undergo substitution reactions to yield bro...

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Q: It is often possible to change a hydrate into an anhydrous compound by heating it to drive off the w...

A: Given: Mass of KF hydrate i.e. KF·nH2O = 31.43 g. And the mass of anhydrous KF after heating = 19.40...

Q: At a certain temperature, the equilibrium constant K for the following reaction is 3.11 × 10¯°: H,(g...

A: We have to predict the equilibrium composition , equilibrium constant value.  

Q: Which of the following statement/s is/are TRUE?  I. The 9-V battery drives the non-spontaneous reac...

A: Given statements are : I. The 9-V battery drives the non-spontaneous reaction to occur. II. The Gibb...

Q: d) If the reaction is carried out at 0°C, what would be the major product? c) The reaction is then c...

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Q: Write an equation for the removal of an electron from a sodium atom

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Q: Question 3 What is the amount of heat produced by combustion of 125 g of methanol under standard sta...

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Q: Consider the reaction: N204(g) 2 NO2(g). What is AS° at 25 °C? AHP, KJ mol-1 AGf, KJ mol-1 NO2 33.85...

A: T = 25 0C = 298.15 K (Temperature in K = Temperature in 0C + 273.15 )   For NO2 : ∆Gf° = ∆Hf° - T∆S°...

Q: Question 9 The pressure of the atmosphere on the surface of the planet Venus is about 88.8 atm. How ...

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

Q: Which of the following is/are expected to affect the rate of a chemical reaction? 1. Increasing the ...

A: The rate of a chemical reaction depends upon:  1. Temperature: Generally Reactions speeds up with in...

Q: Which of the following statements is true? A Liquids can be weighed using a weighing paper. B In wei...

A: Find out the true sentence from given four sentence and explain why it is correct while others are n...

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".