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A 37.7mL volume of an unknown gas is collected over water at19 degrees C and a total pressure of 770torr. The mass of the gas is 68.6 mg.
a. Define what is the pressure of the gas?
b. Define what volume does the gas occupy?
c. State how many moles of gas are collected?
d. Define what is the molar mass of the gas?
multiple choice questions in organic chemistry.1.nbspnbspnbspnbspnbspnbspnbsp 1.nbspnbspnbspnbspnbspnbspwhich of the
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Before investigating the scene, the technician must dilute the luminol solution to a concentration of 2.00×10-2 it M. The diluted solution is then placed in a spray bottle for application on the desired surfaces.
For the diprotic weak acid H2A, Ka1 = 3.2 × 10-5 and Ka2 = 7.9 × 10-7. What is the pH of a 0.0400 M solution of H2A? What are the equilibrium concentrations of H2A and A2- in this solution
A student weighed 0.4521 g of sodium oxalate and dissolved in 50 mL of distilled water and 10 mL of 4.0M H2SO4. The solution was titrated with 58 mL of KMnO4, what was the concentration of KMnO4.
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