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use the following equation q=mxcx♤t in the experiment to determine the specific heat of a metal...
1. A solution is labeled "0.671 M HClO." What are the following in the solution? Express...
A) Give the correct equation that governs the pH of the following salt, KCl. Cl−(aq) +...
For the diprotic weak acid H2A, Ka1 = 3.6 × 10-6 and Ka2 = 8.0 ×...
how might you perform a column chromatography separation of compounds which are not colored
Calculate the concentration of malonate ion (C3H2O42-) in a 0.200 M solution of malonic acid (C3H4O4)....
32. When the following reaction is balanced what is the coefficient for -OH? ____N2H4 + ____ClO3-...
Kemmi Major does some experimental work on the combustion of sucrose: C12H22O11(s) + 12 O2(g) à...
In each pair, choose the compound expected to have the higher boiling point: A) C3H8 or...
3.17 g of iron 3 oxide mixed with excess Aluminum. reaction yields 1.54 g of Aluminum...
NH3 is a weak base (Kb = 1.8 × 10^–5) and so the salt NH4Cl acts...
Show that for the transition between two solid phases with exactly the same volume ΔG is...
if a student wants to perform a standardization of a NaOH solution, what is the best...
1. Calculate the pH of a 0.326 M H2SO3. Calculate the [SO32-] in the solution.
Consider the equation A(aq) + 2B(aq) 3C(aq) + 2D(aq). In one experiment, 45.0 mL of 0.050...
Consider the following equilibrated system: 2NO2(g) 2NO(g) + O2(g). If the Kp value is 0.997, find...
What is the strongest interparticle force in a sample of ALCL3? a. dipole-dipole b. dispersion c....
What is the concentration of free Cu+ in 4.0350e-6 M CuNO3 and 1.3136 M NaCN? Cu+...
Oxidation occurs all the time in our environment. show your calculations for the oxidation states of...
2. Why would you use the derivative plots for determining the equivalence point rather than the...
calculate the pH and fraction of dissociation of a 0.0247 M benzylamine solution
Combustion produces oxides of nitrogen and oxides of sulfur, which can be oxidized to nitrate (NO3-)...
Calculate delta G at 25 C for: Assume smallest whole-number coefficients. a. MnO2 (s) + 4H...
Calculate the final temperature of a mixture of 160.0g of ice initially at -22degrees C and...
25.000 mL of 0.1114 M propanoic acid solution is titrated with 0.1308 M NaOH. Calculate the...
A 50/50 blend of engine coolant and water (by volume) is usually used in an automobile\'s...
1. Consider this thermodynamic data: ΔGf0 I2 (s) = 0 and ΔGf0 I2 (g) = 19.4...
Learning Goal: To understand reaction order and rate constants. For the general equation aA+bB?cC+dD, the rate...
the absorbance scale of a spectrophotometer was tested at 254 nm wavelength with a standard solution...
how does ionization affect the colligative properties of solution?
When 4.71 g of a nonelectrolyte solute is dissolved in water to make 985 mL of...
10. Arrange the following compounds in a vertical list from highest boiling point (top) to lowest...
Part A Calculate the density of oxygen, O2, under each of the following conditions: STP 1.00...
Use the ideal gas calculate the properties of a gas samle as indicated below. Use the...
10. Given the following DNA sequence as the template strand: TTACGATGCCCA Finish the complementary DNA strand....
Find the Kc value for the reaction at 12C when Kp=0.082 3A(s) + 2B(g) + C...
A 600.0 mL sample of 0.20 M HF is titrated with 0.20 M NaOH. Determine the...
What is the difference between Enantiomers and Diastereomers?
Describe Le Chatelier's principle of dynamic equilibrium. Then, explain why the equilibrium shifts, and which way...
8. H = 2.1 Li = 1.0 Be = 1.5 B = 2.0 C = 2.5...
The UV-visible spectrum of tetraphenylporphyrin exhibits four absorptions at 420 nm, 510 nm, 590 nm, and...
a. what order of reaction has a half life that is independent of initial concentration? b....
write the structures of the immediate aldol condensation product and that of the alphabeta unsaturated product...
The data in the following table were measured at 0°C. Experiment123456[H2SeO3]0(M)1.00×10–42.00×10–43.00×10–43.00×10–43.00×10–42.00×10–4[H+]0(M)2.00×10–22.00×10–24.00×10–28.00×10–28.00×10–22.00×10–2[I–]0(M)3.00×10–23.00×10–23.00×10–23.00×10–26.00×10–26.00
For a particular reaction at 111.6 °C, ΔG = 131.35 kJ/mol, and ΔS = 201.60 J/(mol·K)....
The reaction A(g)⇌2B(g) has an equilibrium constant of K = 0.010. What is the equilibrium constant...
The elemental analysis of a compound is determined in your lab. It is: 32.79% sodium, 13.202...
Consider the following reaction: CO(g)+2H2(g)⇌CH3OH(g) A reaction mixture in a 5.18 −L flask at a certain...
Ascorbic acid (AscH2) , C6H6O6H2, MW = 176, better known as Vitamin C is a diprotic...
A 1.00 L solution contains 2.75x10^-4 M Cu(NO3)2 and 1.80x10^-3 M ethylenediamine (en) . The Kf...
The decomposition of chloroform at 504°C is first order with a half-life of 1570 seconds. What...
Which of the following will need to be counted when determining the total number of pi...
Find the representatives of the operations of the group Td in a basis of four H1s...
Calculate the [C3H2O42-] and the pH of a 0.10 M solution of malonic acid (H2C3H2O4) (Ka1...
When aqueous solutions of (NH4)2CrO4 and Ba(NO3 )2 are combined, BaCrO4 precipitates. Calculate the mass, in...
in a bomb calorimeter, reactions are carried out at A. constant pressure B. constant volume C....
In a micro-extraction with ethyl acetate, and an aqueous layer containing benzofuran-2-yl methyl ketone, which layer...
If a reaction is first order with a rate constant of 5.48*10^-2 sec^-1, how long is...
For the reaction shown above, what is the chemical formula for the limiting reactant?
A green leaf has a surface area of 2.05cm2 . If solar radiation is 1090W/m2 ,...
A mixture of mercurous chloride, Hg2Cl2 (FW 472.09), and mercurous bromide Hg2Br2 (FW 560.99) weighs 2.00...
Rank the conjugate base ions below in order of increasing strength. hydrogen carbonate ion, HCO3- acetate...
Given that the vapor pressure of water is 17.54 Torr at 20 °C, calculate the vapor-pressure...
The reaction of potassium metal with chlorine gas is exothermic and proceeds according to the following...
A.Human Hemoglobin does not bind Bicarbonate. Twelve amino acid substitutions had to be made in human...
What mass of ammonium chloride should be added to 2.60 L of a 0.160 M NH3...
Ascorbate and Cu ions have the following electrochemical potentials; Dehydroascorbate + 2H+ + 2e- --> Ascorbate...
are the following solution a buffer or not? yes or no 1. 100 mL of .08...
Exactly 10.8 mL of water at 30.0 degrees C are added to a hot iron skillet....
30.0 mL sample of 0.10 M CH3COOH is titrated with 0.12 M NaOH. Determine the pH...
a particular sample of a zinc-aluminum alloy weighs 3.00 g and has mass percentages of 72.5%...
Comment on relative “activating strength” of methoxy and hydroxy groups in electrophilic aromatic substitution in bromination...
Compare the calorimeter that you built to a bomb calorimeter. How are they similar? How are...
A common biological buffer is a "Phosphate Buffer," which involves the equilibrium between H2PO4- and H2PO42-...
Please answer all of them. I have already wasted 3 questions because I have to retype...
The complex ion Cu(NH3)42 is formed in a solution made of 0.0400 M Cu(NO3)2 and 0.500...
If 2.5 moles of each of these compounds are burned completely in O2, which will produce...
Determine the pH of a solution when 23.2 mL of 0.026 M HNO3 is mixed with...
an aqueous solution contains 0.010M br and 0.010 M I. If AG+ is added until agbr(s)...
The pH of a solution of NH3 and NH4Br is 8.75..What is the molarity of NH4Br...
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