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how many grams of anhydrous cobalt (II)chloride would remain behind after strongly heating 25.0g of CoCl2•6H2O
Prepare a flowchart for the separation of Pb2+, Zn2+, Ba2+, Mn2+, and Al3+.
A certain reaction has an activation energy of 47.88 kJ/mol. At what Kelvin temperature will the...
What is the efficiency of an engine operating at a high temperature of 500 K and...
Consider the following reaction: A(g)⇌B(g)+C(g) Find the equilibrium concentrations of A, B, and C for each...
Please give clean and percise responses. Thank you. A.In principle , radicals could add to styrene...
Calculate the pH of a 0.42 M solution of sodium acetate, CH3COONa. (Ka(acetic acid) = 1.8...
Use the molar volume to calculate each of the following at STP: Calculate the number of...
Name two commercial products that contain oil of wintergreen. • Explain why the esters made in...
Calculate the pH and concentrations of CH3NH2 and CH3NH3 in a 0.0367 M methylamine (CH3NH2) solution....
A.) Pick an appropriate solvent to dissolve acetic acid (polar, contains an OH group) . Water...
Which solution will have the lowest freezing point? 2.0 M sucrose 1.5 M NaCl 0.75 M...
Calculate the equilibrium distance between a Ca2+ and an O2- in terms of [nm]
What is the concentration of nitrate ions if 45 mL of 0.25 M Sr(NO3)2 are diluted...
How much dry solute would you take to prepare each of the following solutions from the...
Malonic acid is a diprotic acid with pKa1 = 2.85 and pKa2 = 5.70. Calculate the...
Which of the following will be more soluble in an acidic solution than in pure water?...
3) Determine the following for a Ti6Al4V femoral head component of a hip implant considering that...
What is the activity coefficient of H in a solution containing 0.070 M HCl and 0.010...
A single completely mixed rectangular reactor is used to treat troublesome waste. The tank is 180...
In this expriement, four safety-coated, low-does aspirin pills were crushed into a fine powder. The crushed...
What is the maximum amount of P2O5 that can theoretically be made from 161 g of...
Methanol can be formed by the catalytic reaction of hydrogen and carbon monoxide as shown below....
The pH of an ammonia solution is 9.00. What is the concentration in mol L-1 of...
Which of the following has an asymmetric center? Check all that apply. CHBr2 CHFBrCl CH3CHCl2 BeHCl...
62.0 mL of a 1.50 M solution is diluted to a total volume of 258 mL....
If you have 140. mL of a 0.15 M TRIS buffer at pH 8.30 and you...
The 1H-NMR of a compound with molecular formula C6H12O2 consists of four signals: 1.1 (triplet, integrating...
Strong base is dissolved in 545 mL of 0.200 M weak acid (Ka = 4.02 ×...
7. In Part G, it is likely that a heavy precipitate formed in one or more...
1.151 g of N-2-acetamido-2-aminoethane-sulfonic acid potassium salt (ACES–K , MW = 220.29 g/mol) is dissolved in...
The volume of 0.300 mol/L HCl that can be completely neutralized by 2.00 g of Ca(OH)2...
Lead can be prepared from galena [lead (II) sulfide] by first roasting the galena in oxygen...
I had to make a calibration curve for the bradford dye-binding assay. My professor wanted us...
Five grams of water is placed in a variable volume piston. What is the volume of...
A 0.100 g sample of a compound containing only C and H is burned in excess...
-(a) A certain first-order reaction has a rate constant of 2.75 × 10–2 s–1 at 20...
How do you tell how many ions are in the unit cell of BaO?
You have 2 buffers A and B which have a pH of 7.4. Addition of 5...
- As described in Exercise 14.43, the decomposition of sulfuryl chloride (SO2Cl2) is a first-order process....
The concentration of carbon monoxide in an urban apartment is 48 micrograms/m^3. What mass of carbon...
Tritium (3H) decays by negative beta decay (negatron) with a half-life of 12.26 years. The atomic...
Describe 3 different ways of making a buffer solution by answering the following question in 3...
What is the molarity of a 0.9% solution of Sodium Chloride?
A solution of MgCl2 is standardized by titrating 25.00 mL aliquots of the solution with a...
Suppose that 25 mL of an iron (II) nitrate solution is added to a beaker containing...
The solubility of the ionic compound M2X3 having a molar mass of (2.0x10^2) g/mol is (1.60x10^-7)...
A (2.1x10^-1) M Na2SO4 is also saturated with Ag2SO4. The [Ag+] is (9.30x10^-3) M. What is...
Which of the following solutions would have the highest value for osmotic pressure? (Assume each solution...
The reaction A→B has been experimentally determined to be second order. The initial rate is 0.0100M/s...
Write the condensed structural formulas and names for all the constitutional isomers with the formula C4H9Br
how can you remove sodium bisulfate during extraction for synthesis 1-bromobutane lab
an aqueous solution of sucrose freezes at -36 degrees C. what is its boiling point? (for...
C alcium oxide reacts with water in a combination reaction to produce calcium hydroxide: 2 2...
For each of the salts on the left, match the salts on the right that can...
A certain weak acid, HA, with a Ka value of 5.61×10−6, is titrated with NaOH. More...
How many valence electrons are there in the Al3+ ion? Briefly justify your answer.
When a 11.90 L vessel containing 43.486 g of I2 is heated to 1162 K, some...
In the car exhaust manifold, (>215 degrees C) N2 and O2 combine to form NO, which...
The following reaction was carried out in a 2.00 L reaction vessel at 1100 K: C(s)+H2O(g)⇌CO(g)+H2(g)...
Calculate the % empty space in a body centered lattice (BCC), and show that it does...
Sodium bismuthate (NaBiO3) oxidizes MnCl2 to MnO4 and is consequently reduced to Bi(OH)3. How many grams...
Draw a compound that is consistent with the following 1H NMR data: C4H9Br, has 3 signals...
A mixture containing an initial concentration of 0.1391 M for both CO and Cl2 is allowed...
What is the balanced equation for the oxidation of acetophenone to produce benzoic acid?
Complete the following table. (All solutions are at 25 ∘C.) [H3O+] [OH−] pH Acidic or Basic...
Silver iodide is a very insoluble compound. Please give reasons for compounds like silver sulfate or...
What mass of potassium chloride forms when 5.25 L of chlorine gas at 0.950 atm and...
In making candy or syrups from sugar, sucrose is boiled in water with a little acid,...
ne idea for hydrogen storage is to take advantage of the formation of metallic hydrides. For...
Dalton’s “Law” doesn’t hold for a large class of chemicals. One example is the mineral olivine,...
Consider the first order diffraction of 550 nm light from a 600 line/mm grating in a...
find the pH of a buffer composed of 0.80M ammonia and 0.90M ammonium chloride. Kb=1.8x10^-5
1. If the pH is 7.83, what is the hydrogen ion concentration? (Express your answer using...
b)An acidic solution containing La3 + concentration 0.010 mol L-1 is treated with NaOH until the...
How many grams of solid sodium fluoride should be added to 0.500 L of a 0.241...
1. Hydrogen sulfide is composed of two elements, hydrogen and sulfur. In an experiment,6.600g hydrogen sulfide...
In a constant-pressure calorimeter of negligible heat capacity, 25 mL of 1.00 M CaCl2 is mixed...
A reaction has a rate constant of 1.25×10−2 /s at 400. Kand 0.686 /s at 450....
If a solution containing 22.90 g of mercury(II) nitrate is allowed to react completely with a...
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