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What is the pressure of BrCl in an equilibrium mixture of Cl2, Br2, and BrCl if...
Ammonia is a weak base that reacts with water according to this equation: NH3(aq)+H2O(l)<-->NH4+ + OH-(aq)....
A student reacts 1.109 g Al with 50 mL of 4 M NaOH and an excess...
1. Explain how a eutectic mixture could be mistaken for a pure substance and comment on...
Write a balanced chemical reaction illustrating the substitution mechanism between albite and anorthite in the plagioclase...
If volumes are additive and 280.0 mL of 2.40 M potassium bromide is mixed with 120...
25.0 mL of a KOH solution (D = 1.46 g/mL and 11.7 M KOH) was added...
A 0.2755 g sample of an iron-carbon alloy was treated with 12.0 mL of a HCl...
A typical human has a mass of 70 kg and produces about 2000 kcal of metabolic...
which are most soluble and which are the least soluble: magnesium chloride, 2-pentanol, methane and propane?
When Na2CO3 dissolves in water, the chemical species in the solution are:
Which solution will form a precipitate when mixed with a solution of aqueous Na2CO3?
A lithium flame has a characteristic red color due to emissions of wavelength 671 nm. What...
Consider the titration of 24.0 mL of 0.100 M HC2H3O2 with 0.120 M NaOH. Determine the...
A 2.30 mole quantity of NOCl was initially in a 1.50 L reaction chamber at 400°C....
Does anyone know how to calculate the last 2 columns of this experiment? Pressure (# of...
As an eager scientist on a hot summer day you wish to determine how much ice...
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C,...
Why does cyclohexanol mixed with (NH4)2Ce(NO3)6 cause a red color but cyclohexene mixed with (NH4)2Ce(NO3)6 cause...
The detection limit for caffeine analysis must be calculated. Eight absorbancereadings from a blank solution are...
A standard analytical procedure for measuring the aqueous concentration (Cw) of a highly hydrophobic compound with...
A solution of H2SO4(aq) with a molal concentration of 6.25 m has a density of 1.300...
Given the following reactions and their enthalpies: ΔH(kJ/mol)−−−−−−−−−−− H2(g)⟶2H(g) +436 O2(g)⟶2O(g) +495 H2+12O2(g)⟶H2O(g) −242 Part A...
1) The aqua color line of the Balmer series occurs at 486.1 nm, a) Determine the...
A membrane has pure water on one side and a protein solution on the other. The...
1) A tank contains 10 kg of salt and 2000 L of water. A solution of...
The major industrial source of hydrogen gas is by the following reaction: CH4(g) + H2O(g) ------>...
What is the pH of 5.1× 10–3 M HCl? What is the pH of 8× 10–8...
At 25 °C, how many dissociated OH– ions are there in 1285 mL of an aqueous...
A solution containing 27.20 mg of an unknown protein per 29.5 mL solution was found to...
WHAT IS THE COMPOSITION OF A 25% V/V SOLUTION OF METHANOL?
Calculate partition function, free energy, thermal energy, entropy, and pressure of monoatomic ideal gas (only translational...
What is the Lewis structure for CH3CH(CH3)CH2CHO?
Water's heat of fusion is 80. cal/g, and its specific heat is 1.0 cal/g.celsius. Some velomobile...
If a Neanderthal excreted 500mL of urine into the ocean 50,000 years ago,how many molecules in...
Please these are the questions based on the same experiment. 1 Is the percentage composition given...
Suppose that you place exactly 100 bacteria into a flask containing nutrients for the bacteria and...
Suppose a group of volunteers is planning on building a park near a local lake. The...
1.Energetics of respirations A. Compute the free energy that is released upon transfer of a pair...
Assume that none of the components of Alka-Seltzer reacted with each other in aqueous solution. Would...
1.) Calculate the energy difference (?E) for the electron transition of n = 3 to n...
Determine the rate law and the value of k for the following reaction using the data...
Two related barbiturates, barbital and secobarbital have the following properties: Barbital: pK =7.8, Oil/water Partition Coefficient...
the equilibrium constant kp for the following reaction is found to be 4.31 *10^-4 at 375...
The following data were obtained in a kinetic run from the decomposition of gaseous dinitrogen pentoxide...
When 25.0 mL of 0.100 M NaOH was added to 50.0 mL of a 0.100 M...
calculate the required volumes of 0.1M CH3COOH and 0.1M CH3COONa to prepare three 100mL solutions at...
When the reaction 2H2S(g) ⇌ 2H2(g) + S2(g) is carried out at 1065°C, Kp = 0.012....
1) Under C4v symmetry, which of the following irreducible representations, if any, correspond to a Raman...
A 25.1 molal concentration of ammonia (NH3) in water has a density of 0.982 g/ml. What...
Calculate the concentration of H^+ and the pH of: a) 0.0010 M HClO4 b) 0.00000050M HBr...
why must use semi log to graph protein migration in electrophoresis
How many grams of calcium chloride will be produced when 25.0 g of calcium carbonate are...
Words: 1. absorb 2. electrons 3. higher 4. lower 5. shorter 6. color 7. excited 8....
Calculate the partial pressure (in atm) of CH3OH at equilibrium when 4.84 atm of CH3I and...
Identify if the statements are true or false 1. Hydrogen ions enter the mitochondrial matric via...
What is the final temperature of a solution made by dissolving 0.2 moles of K2SO4 in...
What is the vapor pressure of acetone at O degrees C? normal boiling point= 56 degrees...
2. NH4Cl(s) > NH3 (g) + HCl(g) Delta H = +42.1 kilocalories Suppose the substances in...
The normal freezing point of a certain organic solvent is 5.50 degrees C. When 0.3003 g...
what major type of strain does chair cyclohexane have compared to normal hexane? A. Angle B....
500 g of acetone, C2H60, is dissolved into 500 g of water, H2O, at 25 degrees...
Calculate the number of impurities per centimeter cube present in copper 99.999% pure. Hint: Consider all...
A solution is made by dissolving 0.579 mol of nonelectrolyte solute in 891 g of benzene....
What volumes of .5M HNO2 and .5M NaNO2 must be mixed to prepare 1.00L of a...
A line in the emissions spectrum of an atom accurs at a wavelength of (6.27*10^2)mm. What...
4. Which reagent(s) will distinguish between cyclopentanol and cyclopentane? A) Br2/CCl4 B) KMnO4 (cold) C) CrO3/aqueous...
1. According to your scale down calculations, how much 4-chlorophenolate-2.5 M NaOH solution will you use?...
18. Which H3O+ concentration and classification (acidic vs. basic) are correctly matched for a solution in...
Determine the vapor-liquid equilibrium curve of a binary mixture of glycerol and acetone. Plot the mole...
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C,...
Determine the concentrations of K2SO4, K+, and SO42- in a solution prepared by dissolving 2.52 x...
internal standards are often used when performing an analysis by GC. carefully explain what the desirable...
Monel metal is a corrosion-resistant copper-nickel alloy used in the electronics industry. A particular alloy with...
A solution is 2.00% (w/w) in ethanol and has a density of 1.10g/mL. How many grams...
Calculate the de Broglie wavelength for thermal neutrons at a temperature of 100 degrees C
Consider the reaction between iodine gas and chlorine gas to form iodine monochloride: I2(g)+Cl2(g)⇌2ICl(g)Kp=81.9 (at 298...
4. If the planet Mars is about 56 million kilometers from Earth, how long would it...
Solutions of sulfuric acid and lead(II) acetate react to form solid lead(II) sulfate and a solution...
1. The preparation of nanoparticle solutions adds a reducing reagent, sodium borohydride, to an oxidizing agent,...
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