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Describe the procedure for preparation of 250 cublic cm of aqueous sulphamic acid of accurately known concentration.
If you fill the larger tank with oxygen to a pressure of 115 , to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
A sample of propane,C3H8, contains 11.7 moles of carbon atoms. How many total moles of atoms does the sample contain?
What are the molality and mole fraction of solute in a 36.3 percent by mass aqueous solution of formic acid (CH3OH)?
A sodium thiosulfate, Na2S2O3, solution has a concentration of 0.150 M. An end point for this titration occurs when 32.89 mL of the sodium thiosulfate solution reacts with 24.80 mL of I2 solution.
When the following equation is balanced properly under acidic conditions, what are the coefficients of the species shown?
Calculation of Hydrogen Ion Concentration from pH What is the H concentration of a solution with pH of
Predict the precipitate that forms when aqueous solutions of silver nitrate and potassium chloride react to form products in a double-replacement reaction. Include a discussion of how to write the complete chemical equation describing this reactio..
water has a molar heat of vaporization =40.79 kJ/mol, determine how many grams of water could be vaporized by 0.806 kilo Joules heat? Express your answer in units of g
What is the activation energy for a reaction if its rate constant is found to triple when the temperature is raised from 300 k to 310 k.
What is the minimum flow rate of water (? = 0.990 g/mL) required to scrub out 90.0% of the incoming NH3? What is the mole fraction of NH3 in the scrubbed waste gas stream?
Calculate the potential of a galvanic cell with two platinum electrodes, the one immersed in a solution that is .0301 M in \(Fe^{3+}\) and .0760 M
Why is glycogen debranching enzyme necessary? a) It allows regulation of the rate of glycogenolysis. b) Because glycogen phosphorylase cannot convert G1P to G6P
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