CH3 H3C CH3 H2C CHO 2

Q: The amino acid alanine has the Lewis structure shown below. Which electron-pair geometries are prese...

A: Electron pair geometries are decided with the help of hybridisation.  Hybridisation is decided with ...

Q: Calculate the percent dissociation of 4-chlorobutanoic acid (C,H,CICO,H) in a 2.2M aqueous solution ...

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Q: chemist needs a buffer solution of pH 3.90.  a. Are formic acid (pKa = 3.74) and its salt sodium fo...

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Q: What is the pH of a buffer made from 0.580 mol of CH₃NH₂ (Kb = 4.4 × 10⁻⁴) and 0.100 mol of CH₃NH₃I?

A: Given- Moles of CH3NH2=0.580mol Moles of CH3NH3I=0.100mol Kb=4.4×10-4

Q: The calcium in a 300.0 ml sample of natural water was determined by precipitating the cation as CaC2...

A: Answer: This question is based on stoichiometric calculation where we have to find out the number of...

Q: direction: assign oxidation numbers to each of the atoms in the equation and determine if the reacti...

A: Check the oxidation number for each atom on both side and determine if the given reaction is redox r...

Q: you have 4 moles of CH4 molecules, how many C atoms do you have?   If you have 4 moles of CH4 mole...

A: Given- Moles of CH4 = 4 mole  

Q: In the laboratory a student finds that it takes 706 Joules to increase the temperature of 13.3 grams...

A: The mass of water is = 13.3 g The increase in the temperature of the water is = (36.4-23.0)oC = 13.4...

Q: Based on the relationship between gas solubility in water, explain why certain fish cannot survive a...

A: Higher temperatures have been found to decrease solubility and dissolved oxygen availability. Elevat...

Q: 1,4-dimethylcyclohex-1-ene with BH3, H;O2, OH 4-methylpent-2-ene with mCPBA, H;O, H*

A: Given reactions are :  And  Give the product of the following compounds = ? 

Q: Low concentrations of methylmercury near the detection limit gave the dimensionless instrument readi...

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Q: A 0.8102-g sample of impure Al2(CO3)3 decomposed with HCl; the liberated CO2 was collected on calciu...

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Q: Which reagents can be used to achieve synthesis of the Indicated target molecule? Conc. KMNO4/ H* / ...

A: Given reaction is :  Which reagent can be used for the given synthesis = ?  Options are :

Q: What is the IUPAC name of the following compound? Ph HO. O 5-methyl-5-phenylhexanoic acid O 5,5-dime...

A: Option A. 5-methyl-5-phenyl hexanoic acid

Q: The standard reaction free energy AG = -190. kJ for this reaction: CH;OH(g) + CO(g)→HCH;CO2(1) Use t...

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Q: 8. Why should you boil the sample solution right before reaching the end point?

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Q: When silver metal, Ag, is exposed to hydrogen sulfide gas, H2S, it tarnishes. Is the reaction of Ag ...

A: Oxidation means increase in oxidation no. whereas reduction means decrease in oxidation no.  RA = re...

Q: On which of these quantities does the rate constant of a reaction depend: concentration of reactants...

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Q: acids: 0.9 mol of KOH is added to 1.0 L of a 0.6 MHF bases: O solution. O other: O acids: 0.12 mol o...

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Q: E Module 12 HW Chapter 21 - Selected Exercises Question 5 of 8 0.33/1 Starting with diethyl malonate...

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Q: 160.0 −L helium tank contains pure helium at a pressure of 1870 psi and a temperature of 298 K. How...

A: 1 atm = 14.7 psi Given - - >  P1 = 1atm = 14.7 psi P2 = 1870 psi T = 298 K V2 = 160 L

Q: A metal crystallizes in a face-centered cubic lattice. The radius of the atom is 128 pm and the dens...

A: The number of atoms in different types of unit cell is independent of radius, density or any other p...

Q: Draw the curved arrows and the resulting resonance structure of meta-nitrobenzoate that shows a carb...

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Q: 1. SiO2(s) + C(s) Si(s) + CO(g)

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Q: 3. Predict which one is more stable (i.e., has the larger dissociation energy) and explain your answ...

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Q: 9. The % w/w of l- in a 0.2144-g sample was determined by Volhard titration. After adding 50.00 mL o...

A: amount of AgNO3 =50 mL X 0.04980 M =2.49 mmol amount of KSCN = 22.76 mL X 0.05322 M =1.2112 mmol  

Q: When do we need to perform a double-indicator titration procedure?

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Q: pause 1 sh alt fn ctrl 7. Target Reaction: co (g) - C(s) + 0 (g) H2O(1) → H2(g) +( 1/202(g)) CaHo(g)...

A: To solve this problem we will use the given thermochemical equation   

Q: A 0.3654 g sample of the disinfectant p-cresol (108.1 g/mol) underwent combustion analysis and forme...

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Q: 0.250 M

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Q: 18. Consider the following reaction which has a has Ke = 0.054 at a certain temperature: PCISG) = PC...

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Q: A buffer solution is prepared by dissolving 1.50g each of benzoic acid (MM=122.1, Ka=6.3 x 10^-5), H...

A: Given,  Mass of benzoic acid (HC7H5O2) = 1.50g Molar mass of benzoic acid =122.1g/mol Mass of sodium...

Q: What is the pressure in a 14.0-L cylinder filled with 0.450 mol of nitrogen gas at a temperature of ...

A: Given- Volume of cylinder= 14.0L Moles of nitrogen gas =0.450mol Temperature=315K

Q: 13. Compute for the Relative Neutralizing power of Calcium hydroxide (CaOH2). * 1.724 % 172.4 % 17.2...

A: Formula to determine relative neutralizing power is RNP1× M1 = RNP2× M2 Where RNP = relative neutral...

Q: Assume a sample of krypton is held in an idealized container that can change its volume and pressure...

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Q: Consider the gas-phase hydration of hexafluoroacetone, (CF3)2CO: At 76oC, the forward and revers...

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Q: Proper attire in the lab includes O a. sandals O b. short sleeves O c. none of these. Od.shorts

A: Proper attire in the lab includes : 

Q: A certain reaction has an activation energy of 39.57 kJ/mol. At what Kelvin temperature will the rea...

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Q: When lead (II) nitrate reacts with sodium iodide, sodium nitrate and lead (II) iodide are formed. Pb...

A: In this reaction, the sodium iodide is a limiting reagent and the lead nitrate remains in excess.

Q: When silver metal, Ag, is exposed to hydrogen sulfide gas, H:S, it tarnishes. Is the reaction of Ag ...

A: Silver metal, Ag is exposed to hydrogen sulfide gas, H2S . It tarnishes. Here, we have to identify w...

Q: The equilibrium-constant expression depends on the __________ of the reaction. Group of answer choi...

A: Equilibrium constant can be defined as ratio of equilibrium concentration of products to equilibrium...

Q: Thermochemical equation shows the enthalpy relationships between reactants and products. Enthalpy is...

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Q: The solubility product of solid copper(II) hydroxide is 2.2 x 10−20 g/L in water at 298 K. What is i...

A: Given :- Ksp of Cu(OH)2 =  2.2 x 10−20 g/L  To calculate :- Its solubility (g/L)

Q: The work done to compress a gas is 74 J. As a result, 26 J of heat is given off to the surroundings....

A: Given ; energy added by work = 74 J              Energy given to surrounding = 26 J

Q: Predict the major product formed when 2-bromobutane is subjected to dehydrobromination using sodium ...

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Q: [References] Use the References to access important values if needed for this question. The followin...

A: Given- Weight of iron(3)oxide = 59.9 gm  

Q: In the titration of a weak acid HA with 0.100 M NaOH, the stoichiometric point is known to occur at ...

A: pH range for an indicator is around the its pka value.  So we choose an indicator whoose pka value i...

Q: The reaction 2A B is first order in A with a rate constant of 2.8 x 10s at 80°C. How long (in second...

A:

Q: Cellulose, the major component of plant cell walls has an empirical formula of C6H10O5.  One of the ...

A: Mass of  Lindsey Creek redwood (m)  = 3.3 x 106 kg  Mass of cellulose in this  = 45% of (m)  = (45/1...

Q: 10.45 Calculate AG° at 45°C for reactions for which (a) AH° = 293 kJ; AS° = -695 J/K (b) AH° = -1137...

A: Formula used :-  ∆G° = ∆H° - T∆S°