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Explain these 2 answers 1. According to the Aufbau principle, what are the values of principal...
Consider the following balanced reaction: 2C2H6(g) + 7O2(g) ->4CO2(g) + 6H2O(g) How many liters of carbon...
What is the pH (to nearest 0.01 pH unit) of a solution prepared by mixing 69.0...
Is it possible to have a copper–nickel alloy that, at equilibrium, consists of a liquid phase...
A 1.0-L buffer solution contains 0.100 molHC2H3O2 and 0.100 molNaC2H3O2. The value of Ka for HC2H3O2...
Calculate ∆E for a system that absorbs 664.0 kJ of heat from its surroundings and does...
Consider the following reaction: H2 (g) + I2 (g) ⇌ 2 HI (g) Complete the following...
A 500 amino acid protein consists of 200 hydrophobic residues. Upon folding, 150 of the hydrophobic...
In a titration of a 100.0mL 1.00M HCl strong acid solution with 1.00M NaOH, what is...
In a titration of a 100.0mL 1.00M HA weak acid solution with 1.00M NaOH, what is...
Barium sulfate, BaSO4, is used in medical imaging of the gastrointestinal tract because it is opaque...
Calculate the pH of a solution prepared by adding 20.0 mL of 0.100 M HCl to...
How many grams of dry NH4Cl need to be added to 1.50 L of a 0.600...
explain how a water filled graduated cylinder is inverted in a pan of water
Explain how you might deduce the equilibrium constant for a reaction in which you know the...
A 3.00-liter flask initially contains 3.00 mol of gas A and 1.50 mol of gas B....
HClO is a weak acid (Ka = 4.0 × 10–8) and so the salt NaClO acts...
Determine the rate law for the reaction 2A + 3B >> C [A] (M) = 0.15,...
The pressure of gas in 550.0 mL cylinder is 64.2 mm Hg. To what volume must...
A mixture formed by adding 49.0 mL of 1.5×10−2 M HCl to 130 mL of 1.5×10−2...
The internuclear distances in gas-phase ionic molecules are considerably smaller than those in the corresponding crystals....
According to the following reaction, how many moles of water are necessary to form 0.329 moles...
All combustion reactions burn a chemical in the presence of O2(g) to generate CO2(g) and H2O(g)....
A 300.0 mL buffer solution is 0.300 M in acetic acid and 0.300 M in sodium...
5. Predict which of the following reactions has a negative entropy change. I. 2 HgO(s) →...
Part A A volume of 80.0 mL of H2O is initially at room temperature (22.00 ∘C)....
For each of the following solutions, calculate the initial pHand the final pH after adding 0.005...
Calculate the final pH of 25 ml of buffer 0.1 M CH3COOH / CH3COONa, pH=3.50, after...
Calculate the pH when 27.3 mL of 0.0013 M HCl is added to 100.0 mL of...
Problem 8.8 It has been suggested that the surface melting of ice plays a role in...
During the titration, you added (neutral) DI water from the squirt bottle to wash the acid...
5.6 Medium preparation Nutrient medium in an insulated fermentation tank is diluted and brought to sterilisation...
Rank the acidity of the following molecules: CH3COOH (acetic acid), CF3COOH (trifluoroacetic acid), H2CO3 (carbonic acid),...
A 1.268 g sample of a metal carbonate, MCO3, was treated 100.00 mL of 0.1083 M...
what type of colloid is formed when a liquid is dispersed in a gas? A)Foam B)Aerosol...
Determine whether each of the following salts will form a solution that is acidic, basic, or...
A.) If the temperature is decreased and some C is added, how does this affect the...
when Br2 was shaken with 0.1M KI and then C6H14 was added. was there a reaction?...
What are significant figures!?
Determine the term symbols associated with an np1 electron configuration. Which term symbol represents the ground...
The experiment calls for preparing one of two salts, either copper(ii) sulfate or potassium aluminum sulfate....
Why does dimethyl sulfoxide produce a faster SN2 reaction than an SN2 reaction with ethanol as...
1-You have a sample that is fluid and smells. Which ionization method would you use? use?...
The concentrations of NaCl and KI are at 0.150 M and 0.100 M, respectively, in the...
An alkaline battery has the overall reaction: Zn + MnO2 + H2O → ZnO + Mn(OH)2...
Solid copper sulfide and silver nitrate react to form copper (II) nitrate and solid silver sulfide....
A rechargeable battery is constructed based on a concentration cell constructed of two Ag/Ag+half-cells. The volume...
The insidious nature of anorexia creates strong resistance to weight gain and all strategies to promote...
If 0.015 mg Pb2+ were added to enough water to make exactly 1 L of solution,...
Use the following reaction enthalpies to determine the reaction enthalpy for 2 HCl(g) + F2(g) →...
What mass of ammonium chloride must be added to exactly 500 ml of .10 m NH3...
This is an organic chemistry lab question.The experiment is on relative reactivities of some aromatic compounds....
Deduce the structure of an unknown compound using the data below: Molecular Formula: C6H12O IR: 1705...
How much energy must be removed from a 125 g sample of benzene (molar mass= 78.11...
Calculate the pH at the equivalence point when 30 mL of 0.293 M (CH3)2NH, is titrated...
Al2O3(s) + 6NaOH(l) + 12HF(g) = 2Na3AlF6 + 9H2O(g) If 10.9 kilograms of Al2O3(s), 50.4 kilograms...
Calculate the pH of a 0.0416 M aqueous solution of ethylamine (C2H5NH2, Kb = 4.3×10-4) and...
A solution is 0.10 M Pb(NO3)2 and 0.10 M AgNO3. If solid NaCl is added to...
Consider the dissolution of AB(s): AB(s)⇌A+(aq)+B−(aq) Le Châtelier's principle tells us that an increase in either...
the normal boiling point of toluene is 110.6 degree Celcius. what is its vapor pressure at...
The formation constant* of [M(CN)4]2– is 7.70 × 1016, where M is a generic metal. A...
I have no idea how to do this: Which ionization of energy of: a. Potassium is...
Specific Heat The heat capacity of an object indicates how much energy that object can absorb...
2The acid-dissociation constants of phosphoric acid (H3PO4) are Ka1 = 7.5 × 10-3, Ka2 = 6.2...
Consider the titration of 25.00 mL of 0.300 M H3 PO4 with 0.300 M NaOH. A....
Consider the titration of 50.00 mL of 0.2000 M NaOH with 0.4000 M HBr. Calculate the...
Type a formula for the compound that forms between sodium and each polyatomic ion: 1. Carbonate...
Consider the following reaction and associated equilibrium constant: aA(g)+bB(g)⇌cC(g), Kc = 3.0 Part A Find the...
An uncatalyzed reaction has a rate of 0.0000048 sec–1 at room temperature (25 °C). When an...
Consider the carbonate ion test that you might perform on a typical +2 metal carbonate as...
If 0.495 g of material is completely dissolved in deionized water to make a 100 mL...
The Ksp of CaSO4 is 4.93× 10–5. Calculate the solubility (in g/L) of CaSO4(s) in 0.250...
Beaker #1: HNO3 Beaker #2: HNO2 Beaker #3: HCl Each beaker contains 100 ml of the...
Identify the acid (A), base (B), conjugate acid (CA) and conjugate base (CB) in each of...
1. Which of the following solvents is considered the most polar? Which of the following solvents...
So my teacher justifies an answer this way. Could someone explain the logic? ################################################################################################################################ For the...
Given that Ka for the weak acid HA is 3.46 × 10–8, calculate K for the...
What is the difference between zero, first, and second order chemical reactions in terms of the...
part A : As a technician in a large pharmaceutical research firm, you need to produce...
A reaction was performed in which 3.0 g of benzoic acid was reacted with excess methanol...
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