A compound has the empirical formula C6H7N and a formula mass of 186.24 g/mol. What is the molecular formula of the compound? At. wt. g/mol: C=12.0 , H=1.0, N = 14 O C18H21N3 O GGH;N O C30H35N5 O C12H14N2 O C24H28N4

Q: 1. 2 mol CgH5MgBr `OC2H5 2. Hзо" 1. NaOH (aq ) HOʻ 2. CH3CH2B

A: i)this is based on addition elimination reaction followed by acidic hydrolysis. ii) this is…

Q: Крand Kc the sanme?* А. 2 СО(g) + 0-(g) B. PCI5(g) → PC13(g) + Cl2(g) С. N2(g) + 3 H-(g) —> 2 NH3(g)…

A: Kp = Kc(RT)∆n ∆n = number of moles of gaseous product - number of moles of gaseous reactants

Q: CS2 (1) +2 O2 (g) CO2 (g) +2 SO2 (g) Given: AH, CO2 (g) = - 393.5 kJ/mol; AH SO2 = -296.8 kJ/mol; AH…

A: Heat of reaction is difference of energy of product  and energy of Reactant. If heat of reaction is…

Q: If you want to balance the following equation: XH3PO4 (aq) + yCa (OH)2 (aq) + ? w Ca3 (PO4)2 (s) + z…

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Q: 56.172g of pure (elemental) Si is equivalent o how many moles of Si?   A): 6.02 x 10^23 moles of…

A: SOLUTION Mass of elemental Si = 56.172 g Atomic mass of Si =  28.086 g/mol Moles of Si =…

Q: CH«g) + O3(g) → CO2(g) + 2H2O(g) AH? (kJ/mol) -249.2 Substance Substance AHf (kJ/mol) H2O1) H2Og)…

A: Calculate change in enthalpy of the given reaction---

Q: A 0.25 M NAOH is to be standardized with KHP. How much 100% KHP (204.22 g/mol) should be weighed so…

A: Given, Molarity of NaOH solution = 0.25 M = 0.25 mol/L Volume of NaOH solution = 15 mL = 0.015 L…

Q: (1) CIO(g) + O3(g) - (2) 203(g) 30,(g) (3) 0,(g) + CI(g) → Cl(g) + 20,(g) AHxn = -122.8 kJ AHan =…

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Q: Which is expected to have AS°rxn < 0? 1.4Al(s) +302(g) → 2A12O3(s) 2. PCI5(g) PCI3(g) + Cl2(g) 3.…

A: If heat flows into the system from the surroundings, Delta S of the surroundings is less than zero.

Q: (1) C(s) + O2(g) → CO2(9) AH = -393.51 kJ mol1 (2) S(s) + O2(g) → SO2(g) A:H = -296.83 kJ mol1 (3)…

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Q: hat is the final 1. HNO3, H₂SO4 2. H₂, Pd/C OH NO₂ NEN HSO4 =0 C10H15N 1. NaNO₂, H₂SO4, H₂O, 0 °C 2.…

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Q: Compound "X" has a density of 1.71 g/L at 755 mm Hg and 25 °C. What is the molar mass of  compound…

A: Density = 1.71 g/L Pressure =  755 mm Hg = 0.993 atm  ( 1 atm = 760 mmHg) Temperature = 25 °C =…

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Q: 6.35 x10 to the 22nd power molecules of H2SO4 then how many grams of H

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Q: Question 2

A: The unbalanced chemical equation is given by as follows:

Q: Question 1

A: Balanced chemical equation of a reaction is written according to law of conservation of mass. Thus,…

Q: 2.48g of hydrated copper(ii)chloride (CuCl2.xH2O) were heated to constant mass. 1.96g of anhydrous…

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Q: For each reaction, predict the sign and find the value of ΔS°:

A: Given:-                     a    3NO2g +H2Ol  →2HNO3l +NOgb   N2g +3F2(g)   →2NF3gc   C6H12O6s +6O2g…

Q: An underground tank contains 600 kL of decane (C10H22). If the owner of the tank requires 2.52 ×…

A: Given: Volume of tank = 600kL Density = 1.21 g.ml-1 Molecules = 2.52 × 1029

Q: Succinic acid is an important chemical used in the manufacture of polyesters and plasticizers. It…

A: 0.390 mole of Succinic acid (S.A.) has a mass of 46.1gSo, Molecular mass of S.A.= 46.1g0.390mole =…

Q: A 0.6951 g sample of nicotine was analyzed and found to consist of 0.5147 g C, 0.06047 g H, and…

A: Molecular formula of nicotine- C10H14N2   Formula for percentage of element in a molecule = (amount…

Q: If 315 g warer at 6G,9°C loses 9T6o J Of nea what is the Pinal temperanure of the warer?

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Q: An allotrope of elemental sulfur is the cyclic molecule S6 . Calculate the number of molecules and…

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Q: 4) _ H2 + O2 0 H20 Pb(OH)2 + AIBR3 + Al2(SO4)3 5) HCI H20 + PbCl2 6) K2SO4 O KBr + 7) СН4 + O2 0 CO2…

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A: Molar mass of the given compound is 88.1 g/mol.

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Q: What is T

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Q: C7H16(g) + O2(g) →   C2H2(g) + O2(g) →   C3H8O(g) + O2(g) →

A: Note : As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost…

Q: A  sample of washing soda (a hydrate of sodium carbonate) has the formula Na2CO3.xH2O. When 2.558 –g…

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Q: Calculate the ΔG°rxn using the following information.                                Mg(s)   +…

A: Given: Mg(s)   +   N2O(g)   →    MgO(s) + N2(g) ΔG°f (N2O) =103.7  kJ/mol ΔG°f (MgO) =−569.3 kJ/mol

Q: A 0.4017 g sample of nicotine was analyzed and found to consist of 0.2974 g C, 0.03494 g H, and…

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Q: 1. N₂H4(1) + O₂(g) →N₂(g) + 2 H₂O(1) 1.15435 moes. 32.04476 C 0131 4444 11.03736 2. C₂H₂O(1) +4…

A: Heat of reaction for the following reaction are calculated as...

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Q: The following data were obtained when a hydrate was heated 31.781 g crucible+ sample 30.501 g empty…

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Q: Al,(SO.); Al: S: O: NaOH Na: 0: H: (NH,),S N: H: S: DO IT LIKE THE GIVEN EXAMPLE EXAMPLE 1) CuBr2…

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Q: A major component of honey is fructose (C6H12O6) with a molar mass of 180.16 g/mol. A tablespoon…

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Q: Species AG (kJ/mol) f Mg(s) 02g) MgO(s) -569.6 SO2(g) -300.57 SO3(g) -370.53 CH2(g) 209.2 CO2(g)…

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Q: nd gaseous water (H,O). Suppose 9.1 g of al reaction. Round your answer to 2

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Q: 39.) number of moleeules? a. 4.75 mmol of phosphire, PHs a 4.75g of phophney PHs e. 1.25 x10 g eof…

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Q: 4) ½N2(g) + 02(g)= NO2(g) Kc = 1.04 x 10-9 N2(g) + 202(g) = N204(g) b Kc 7.42 x 10-18 Calculate Kc…

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Q: A mixture of 20.6 g of P and 79.4 g of Cl2 reacts completely to form PCl3 and PCl5 as the only…

A: Calculating the number of moles by using the formula: Number of moles=Given massMolar mass…

Q: One mole of solid MgO occupies a cube 22.37 mm on a side. Calculate the density of MgO (in g/cm³)…

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Q: Q/ Prepare 0.1 N and 0.1 M of 98% H,SO, in 250 ml. M.wt of H,SO4 = 98 g/mol, and its Specific…

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Q: Q/ Prepare 0.1 N and 0.1 M of 98% H,SO4 in 250 ml. M.wt of H,SO4= 98 g/mol, and its Specific density…

A: Normality is defined as the number of gram or mole equivalents of solute present in one litre of the…