Chemistry question and answers for September 10, 2023
- Q Which one of these molecules contains the least amount ofenergy: CMP, CDP, or CTP? Explain why.
- Q Below is the data for three titrations. In this experiment wehave 25 mL (approx. 0.03M) of various monoprotic acids and weslowly add 50 mL of NaOH while monitoring pH. We...
- Q In a constant-pressure calorimeter, 65.0 mL of 0.340 M Ba(OH)2was added to 65.0 mL of 0.680 M HCl. The reaction caused thetemperature of the solution to rise from 21.83 �C...
- Q Consider 1.70 mol of carbon monoxide and 2.60 mol of chlorinesealed in a 6.00 L container at 476 oC. The equilibriumconstant, Kc, is 2.50 (in M-1) forCO(g) + Cl2(g) ?...
- Q What precautions should you take when working with strongacids?
- Q An ionic compound formed by a cation of radius 120pm and ananion radius 230pm will probably form a: (hint: calculate thedifference in radius of cation and anion, compare to the...
- Q Topic: Sulfuric Acid. Disscuss the stregth of the acid, itsrealtive conductivity, pH, stability of the negative anion(conjugate base), polarity of the acid, and stregth of the H-A bondfor Sulfuric Acid.
- Q If a student accidentally ran their TLC plate with 30%hexane/ether (instead of the 30% ether/hexane as directed), brieflyexplain who their TLC results would differ.
- Q How much energy is required to raise the temperature of 100g ofwater from -10 to 110°C?
- Q Write the principal equilibrium reaction and calculate theequilibrium constant for the base hydrolysis reaction of solidcalcium phosphate to form monohydrogenphosphate anion as theprincipal phosphate containing species. Determine the pH of...
- Q Suppose 0.234g of potassium bromide is dissolved in 50.mL of a25.0mM aqueous solution of silver nitrate. Calculate thefinal molarity of bromide anion in the solution. You can assume thevolume of...
- Q in one paragraph, discribe how the human body and/or itsprocesses act like an electrolytic cell and voltaic cell. Includeat least one chemical equation.
- Q ​Please answer and show all work and units. Will rate ASAP.-------------------------------------------------------------------------------------------------------Consider the reaction shown below taking place at 25oCN2(g) + 3 H2 (g) ⇆ 2 NH3 (g)For this reaction it...
- Q 1. Explain the fragment patterns, isotope peaks, peakabundances, (The molecular formula for the compound is:C2H2Cl2).Mass/ChargeRelative Abundances122.7133140.624425152634270.7310.3357361.9372.3380.7476.547.50.2485.9494.2501.8510.7592.6602461100629.96332640.7951.59667972.4984399110071010.13:1 Ratio = Chlorine presentM+ peakM+2 peakM+4 peak
- Q 1. Calculate the pH of a 0.17 M solution of HClO, with K_a =3.5x10^{−8}.2. At 25°C, 2.29E0 grams of sodium hydroxide is dissolved inenough water to make 500. mL of...
- Q What are two different chemicals that we have added to thecarbon cycle that did not previouslyexist naturally.i.  Which functional group does each chemical belongto? Explain.ii. How does the type of bonding...
- Q Show how the ratios of the simulated spherical S to theexperimental S is equivalent to f/f0, and calculate this value.What does this suggest about the structure of the nuclesomal arrayin...
- Q Find out what you can about gelpermeation chromatography (GPC). This technique is based on adifferent property of the compounds being separated than isthin-layer or traditional column chromatography. What property isthis?
- Q Fora laboratory experiment on effusion and low pressure Gas flow, withthe goals of measuring the rate of effusion through smallapertures, determining average velocities of gases and examine theflow of gas...
- Q Using the given data, calculate the change in Gibbs free energyfor each of the following reactions. In each case indicate whetherthe reaction is spontaneous at 298 K under standard conditions.Part...
- Q 4Au(s) + 16KCN(aq) + 3O2(g) + 6H2O(l) --> 4KAu(CN)4(aq) +12KOH(aq) Balance using half reaction method. show all steps andplease explain how you get the equation in each step
- Q How many nitrate ions are present in 150.0 mL of 0.0875 Miron(III)nitrate?How would you prepare 2.50 L of 0.0683 M CaCl2 from a 0.388 Msolution of CaCl2?
- Q 1)What functionalgroup is formed in a Wittig Reaction?2)What isaylide?3)Theylideis reacted with acompound with which functional group?4)How isaylideformed?5)Why is it necessaryto add the base, NaOH, in thereaction?6)What is the sideproduct that...
- Q A wastewater containing 150 mg/l chlorobenzene is treated in alaboratory adsorption unit using a PVC column, 1.0 inch internaldiameter, to an effluent concentration of 15 mg/l . Service times,and throughput...
- Q Define and differentiate between the terms reaction rate, rateexpression, rate law, reaction order, and instantaneous ratelaw.
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