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Offer the experimental procedure necessary to make the subsequent solution- 10.00mL of a 0.0300M solution of CH3COOH from a stock solution with a concentration of 0.0780M
Predict the intensities of the peaks at masses 57 and 114 in the spectrum of 2,2,3,3-tetramethylbutane. Support your answer with its corresponding fragmentation reaction.
A 2.45 g sample of a gaseous oxide of nitrogen occupies a volume of 1.34 L at 28°C and 745 mmHg. What is the most likely formula for the gas. A. NO B. N2O4 C. N2O D. NO2
Why is it necessary to add sodium chloride to the steam distillate before carrying out ether extraction
A 0.1510 gram sample of hydrocarbon produces 0.5008 gram CO2 and 0.128 gram H2O in combustion analysis. Its molecular weight is found to be 106. For this hydrocarbon, determine its empirical formula.
the molar heat of fusion of aluminum metal is 10.79 kjmol whereas its heat of vaporization is 293.4 kjmol.what quantity
A 10.0 L gas cylinder has been filled with 7.40 moles of gas. You measure the pressure to be 3.90 atm. What is the temperature inside the tank
How much heat (in kJ) is evolved in converting 1.00 mol of steam at 130.0 degrees C to ice at -55.0 degrees C? The heat capacity of steam is 2.01J/g and of ice is 2.09j/g.
calculate the ph of a solution formed by mixing 40.0ml of 0.1000 m hcl with 39.95ml of 0.1000 m naoh and then diluting
What is the molar mass of 1.00-g sample of gas that occupies a volume of 750 mL at a pressure 725. mm Hg and a temperature of 27.0°C?
A gas mixture contains 4.8 g of N2, 7.4 g of H2, and 6.6 g of CH4. What is the mole fraction of H2 in the mixture
how do you calculate the H+ in the following solution: [OH-] = 3.44 x 10-1 - need the steps please.
What mass of solid sodium formate (of MW 68.01) must be added to 140 mL of 0.3 mol/L formic acid (HCOOH) to make a buffer solution having a pH of 3.77? Ka = 0.00018 for HCOOH.
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