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It takes 10 microliters to produce a spot 1cm in diameter. If Co(No3)2contains 6 g Co2+ per liter how many micrograms of Co2+ ion are there in one spot?
Determine how many kgs of methane (CH 4 ) are in completely insulated piston with the given properties: Pressure = 3 bar absolute. Volume = 2 cubic meters.
What is the stoichiometric coefficient for aluminum when the chemical equation is balanced using the lowest, whole-number stoichiometric coefficients?
At 0.0oC, if the volume of air is 1.5 mL and the pressure of the atmosphere that day is 735 mmHg, what is the number of moles of air?
An unknown solution containing one of the salts ZnSO4, MgSO4 or SrCl2 gives a negative flame test but tarnishes a piece of magnesium inserted into the solution. Which salt was in the solution
What is the value of the rate constant (k) for this reaction at this temperature? b) Write the rate law for the reaction c) If the initial concentration of AB is .250M
Solubility constant for is 8.1E-12. When is in equilibirum with its ions in saturated solution. The concentration of silver ions.
Isopropyl alcohol is mixed with water to produce a 31.0% (v/v) alcohol solution. How many milliliters of each component are present
Solid thorium(IV) fluoride has a boiling point of 1680°C.What is the density of a sample of gaseous thorium(IV) fluoride at its boiling point under a pressure of 2.5 atm in a 1.7 L container?
95 grams of sodium acetate is dissolved in enough water to make 75 mL of solution. Calculate the pH of the resting solution
5.97 g of CuNo3 is dissolved in water to make a 0.860 M solution. What is the volume of the solution
The acid ionization constant of Fe(H2O)62+(aq) is 3E-6. Compute the pH of a 0.2 M aqueous solution of Fe(NO3)2. 5. Compute the solubility of Mg(OH)2 in a buffer solution at pH=10.31. The solubility product of magnesium hydroxide is 1.2E-11
Find the pH during the titration of 20.00 mL of .1000 M butanoic acid CH3CH2CH2COOH (kA = 1.54E-5), with .1000 M NaOh solution after the following additions of titrant. a. 20.40 mL b. 26.00 mL
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