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A student investigating the properties of solutions containing carbonate ions prepared a solution containing 6.182 g Na2CO3 in a flask of fvolume 250 mL. Some of the solution was transferred to a buret. What volume of solution should be dispensed from the buret to provide 9.945 mmol Na2CO3? Answer in units of mL.
What volume of solution should be dispensed from the buret to provide 5.633 mmol CO2-3 ? Answer in units of mL.
When 27 mL of a 230 mL stock solution containing 2.2 M BaF2 is diluted to 81 mL, what is the concentration of F- in the new solution?
If 36 L of Hydrogen at 44 C and 94 kPa react with sufficient oxygen to produce water, what mass of water can be produced?
Measurements of strontium in enamel from extracted wisdom teeth were done by atomic absorption spectroscopy. Solutions were prepared with a constant total volume
Compute the amount of heat needed to completely sublime 43.0 grams of solid dry ice at its sublimation temperature. (The heat of sublimation for carbon dioxide =32.3).
The wave function for the ground state of the quantum harmonic oscillator
Write the reaction of butanoic acid with propanethiol.
Calculate the molarity of the solution. How many grams of KNO3 are needed to make 450 mL of a solution that is to contain 5.50 mg/mL of potassium ion?
A solution of PbI2 has [Pb2+] = 4.5 x 10-5 and [I-] = 6.5 x 10-4. PbI2 has Ksp = 8.7 x 10-9. Write down the reaction that is taking place. Calculate Q.
what is the voltage after the addition of the following volume of NaI solution? The reduction potential for the saturated calomel electrode is E = 0.241 V. The standard reduction potential for the reaction is E0 = 0.79993 V.
Draw a series of titration curves for the titration of a strong base with a strong acid where the concentration of the acid is 10 -1 , 10 -2 , and
Draw the structure(s) of the epoxide(s) you would obtain by formation of a bromohydrin from cis-3-heptene, followed by treatment with base
how many moles of nitrogen gas will be formed upon the complete reaction of 31.6 grams of nitrogen monoxide with excess hydrogen gas?
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