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What is the pH of a solution formed after titrating 25 mL of 0.150 M acetic acid with 15.0 mL of 0.150 M sodium hydroxide? Ka(acetic acid)=1.76x10-5
If 2.00 g of iron metal are reacted in a calorimeter with a heat capacity of 500 Joules/Celsius, what would be the final temperature of the calorimeter if its initial temperature were 23.0 celsius
when 50.0 gram of metal at 75.0 c is added to 100 grams of water at 15.0 c the temperature of the water rises to 18.3
how many grams of potassium are present in 13.6g of K2Cr2O7
What are the pH and alkalinity of these three solutions immediately after you make them
A chemist performed a titration experiment in order to determine the concentration of a given aqueous solution of HCl (an acid). She pipeted 20.00 mL of the HCl solution into an Erlenmeyer flask.
Design a qualitative analysis scheme
Mass spectral analysis of 1-chloropropane results in several fragmentation pathways. Complete the mechanism below and give the products for each indicated fragmentation pathway. Include all nonbonding electrons and charges.
At a pressure of 1 atmosphere and a temperature of 25 °C, 500 cm3 of the gas HX has a mass of 0.400 g. Calculate the value of the relative atomic mass of X and hence identify element X.
acalculate the time it would take to form 515.0 g of pbo2 if you recharge anbsplead-acid storage battery with a
A solution is 0.034M in Na2SO4 and 0.035M in Na2CrO4. Solid Pb(NO3)2 is added without changing the volume of the solution.
Calculate the amount of heat required to completely sublime 61.0 g of solid dry ice CO2 at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3 {kJ}/{mol}.
A current is drawn from the cell until 2.20 g of silver have been deposited at the silver electrode. Calculate E for the cell at this stage of operation in volts.
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