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Hydrogen gas is burned in a complete combustion reaction.
2 H2 (g) + O2 (g) --------> 2 H2O (g)
What volume of water vapour at STP is produced when 4.52 L of hydrogen at STP is burned in a complete combustion reaction?
If 5.400 g of C6H6 is burned and the heat produced from the reaction is absorbed into 5691 g of water and 21 degrees C, what is the final temperature of the water?
in its brochure to customers that is required by the safe drinking water act a water utility lists the concentration of
What is the ppm of a solution prepared by mixing 25.0 g ethylene glycol (molar mass = 62.1 g/mol; C2H6O2) with 125 g of water(molar mass = 18.012 g/mol; H2O)
What is the standard potential, E cell, for this galvanic cell? Express your answer to four significant figures and include the appropriate units.
Using the calibration equation and the absorbance you measured for the prepared sample, calculate the ferroin concentration. Show your work and don't forget to include units.
Generation and use of a standard curve and serial dilutions, This lab provided a 100mM Glucose standard solution which you are required to dilute with water to give final concentrations of 0,0.4,0.8,1.2,1.6 and 2.0 mmol/L glucose in a final volume..
Suppose you are given a 2.75 g sample of the orginal mixture. You isolated the pure metal from the other components and determined that the mass of the metal was 1.25 g. What is the percent by weight of the metal in the orginal sample
O2 is generated into a 250mL beaker by water displacement at a pressure of 730 torr and a temperature of 25C. What is the volume of O2 at STP?
a mixture of 3.78 moles of n2 and 3.78 moles of o2 is placed in a 1.00 l container at 448 degc and allowed to reach
Problem- Determine the minimum potential that must be applied to an alpha-particle so that, on interaction with a hydrogen atom, a ground state electron will be excited to n = 5
Compare and contrast prokaryotic and archaean cells. Which are most similar to eukaryotic cells?
Explain how do you calculate the molarity of KMnO4 after it has been titrated by .0505 M (COOH)2. The only information you are given is .0011 mol of KMnO4 as well as no volume this is for pre lab 6.
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