If 0. 274 moles of a substance weighs 62.5 g, what is the molar mass of the substance, in units of g/mol? O 2 28 x102 g/mol O 1.71 x10' gmol O 4.38 x103 g/mol x102 gimol 2.17

Q: NaCN 1. LIAIH4 (f) Br A B 2. Н2о 1. LIAIH4 (g) 2. Н2о (h) `NH2 HCI ZI

A: ->LiAlH4 is reducing agent which can reduce cyanide to amine and amide to amine.  

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Q: The combustion of 1.876 g of propanol (C,H,OH) increases the temperature of a bomb calorimeter from ...

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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...

Q: Consider the following table of ionization energies in kJ/mole. 2nd 3rd 4th Element Na 1 st 496 5th ...

A: Ionisation energy increases across the period and decreases down the group in the periodic table.  I...

Q: Please draw a curved arrow mechanism for the posted aldol reaction: H,C CH3

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Q: (molecular equation)

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Q: 1. Observing pH Changes in Water and Buffer Solutions upon Addition of HCI and NAOH Solutions soluti...

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Q: 3. A 0.997-gram sample of chromium combines with 0.179 grams of nitrogen to form a binary nitride co...

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Q: Consider the structure of Vitamin C to answer the following questions. OH HO но OH Vitamin C 31. Com...

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Q: Read each description in the first column of the table below. If any chemical element with atomic nu...

A: Given :  Chemical element with atomic Number 92 or less 

Q: The internuclear distance between two closest Kr atoms in solid krypton is about 4.0 Å. The polariza...

A: We have find out boiling point of Krypton.

Q: How does a rate constant differ from an equilibrium constant for a reaction?

A: For a general reaction : aA + bB ⇌cC + dD  Rate of forward reaction = kf[A][B]  ---(1) Rate of backw...

Q: moles of ga

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Q: In a 0.55 mM aqueous solution of butanoic acid (C,H,CO,H), what is the percentage of butanoic acid t...

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Q: Identify which of the graphs represent the given titration experiments best. Graph A Graph B 12 12 1...

A: Titration is a process in which amount of solute in a solution of unknown concentration is determine...

Q: 16 CH3CI(g) + 8 Cl2(g) → 16 CH2CI2(g) + 8 H2(g) K - CH,Cl,] [H] [CH2 CI] [Cl,] CH,Cl]" [H," K = 16 (...

A: Choose the corect option for Kc expression ---

Q: Question 14 Which of the following are meso compounds? Check all that apply. (a) CH, (b) (c) H H CH,...

A: Meso compounds are compound which has either plane of symmetry or center of symmetry or both.  

Q: Which of the following phosphate salts are insoluble in water? A) (NH4)3PO4 B) Li¿PO4 C) Na3PO4 D) K...

A: Which of the following phosphate salts are insoluble in water.

Q: mL

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Q: In the reaction of Cl2 with ethane and UV light, which of the following reactions would be an initia...

A: When ethane reacts with chlorine in presence of UV light, it will undergo substitution reaction. The...

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

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Q: A. What is the pH of a 0.33 M solution of H2SO4? (The Ka of the second deprotonation is 1.3 x 102)

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Q: łow many C atoms are in 5.50 g of C? O 2.76 x 1023 c atoms 5.01 x 1022 C atoms 3.31 x 1024 C atoms 6...

A: Given, mass of C = 5.50 g Molar mass of C = 12 g.mol-1  

Q: What molar ratio of salt to acid would be required to prepare a buffer solution with a pH of 5.9? Th...

A: Since you have asked multiple question, as per our company guidelines we are supposed to answer the ...

Q: ich of the following is the reaction quotient expression for the ionization of NH, in water? The equ...

A: Reaction quotient expression for ammonia in water:

Q: Consider the following reaction at equilibrium. What effect will increasing the temperature have on ...

A: Fe3O4(s) + CO(g) ---> 3FeO(s) + CO2(g) ∆H° =+  35.9 kj Yes, your answer is correct.  

Q: Calculate the density, in grams per liter, of ammonia gas at STP. Express your answer with the appro...

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Q: e quantity of

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Q: Consider the following reaction at equilibrium. What effect will adding more SO3 have on the system?...

A: Choose the correct option of the following--

Q: HCI. Calculate the pH of the solution after the addition of 6.95 mL of 0.277 M HCI. pH = Calculate t...

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Q: How many grams of lodine should be used in preparing 5000 mL of 1:20 solution?

A: 1:20 means 1 g of Iodine is dissolved in 20 ml. So we have, 20 ml dissolves 1 g Therefore,  1 ml dis...

Q: pH

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Q: Astaxanthin, the molecule shown below in the green box, is a natural product responsible for the pin...

A: Calculate number of chiral centre in the given compound ----

Q: .3 Solubility What is a solution? Describe the two medium of a solution. Describe how a substono

A: As per our guidelines we can only solve first question. Please resubmit the other questions as next ...

Q: Radium-221 has a half of 30 sec. How long will it take for 82% of a sample to decay?(Round your answ...

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Q: One mole of iron None of the other choices is correct. is heavier than one mole of lead (Pb). O is 7...

A: To solve this problem we have to know about one mole of iron and one mole of lead .

Q: (c) Under the conditions described in (b), the half-life of the reaction has been estimated to be 6....

A: Given: Conditions in part b) Initial concentration of NO =1.9 ppm Half life =6.7 x 103 min To calcul...

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Q: 7. For the complete redox reactions given here, (i) break down each reaction into its half-reactions...

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Q: A 50.0 milliliter sample of 3.00×10–3 molar FeSO4 solution is added to 50.0 milliliters of 4.00×10-6...

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Q: What is the oxidation number (ON) of Cl in the following compound? Cl2O5 What is the oxidation num...

A: Given :-  Chemical formula of compounds :  Cl2O5  N2O7  To find :- oxidation no. of Cl in Cl2O5 an...

Q: A 500.0 mL sample of water is placed in a large container with pure N2 (g) at a pressure of 782 mmHg...

A: Answer:-  Given :- volume of water is 500.0 mL                pressure of N2 gas is 782 mmHg        ...

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

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Q: How long would it take for the amount of u-235 to reach 1/8 of its initial amount? One of the nuclid...

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Q: e coordination number for

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Q: Calculate the number of grams of HI that are at equilibrium with 1.25 mol of H, and 63.5 g of I at 4...

A: The amount of HI can be calculated as follows

Q: Consider an analyte solution of 50.0mL of 0.050M hydrochloric acid, HCl, titrated against 0.10 M so...

A: First we write a chemical reaction between HCl and NaOH .  Then calculate moles of both HCl and NaOH...

Q: 22. (a) The one-pot synthesis of a spirodiindenopyridine-indoline catalyzed by p- toluenesulfonic ac...

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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".