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When 19.8g butane, C4H10 is burned with excess oxygen: 2C4H10g + 13O2g -----> 8CO2g +10H2Og How many grams of oxyen are consumed, how many grams of CO2 & H2O are produced?
Explain the fact that even though dibenzoylmethane is not a methyl ketone it gives a positive iodoform test
Unfortunately, a mixup in the laboratory prevented an immediate analysis, and it was not until 17.0 days later that a measurement on the blood was made.
The density of lead is 11.3 g/ml. The water level in a graduated cylinder initially at 220mL rises to 297mL after a piece of lead is submerged. What is the mass in grams of the lead?
You have measured the absorbance for a vitamin sample to be 1.2 at a wavelength of 264. Can you use this reading to determine the INITIAL CONCENTRATION of your vitamin sample?
Write the net ionic equations for & the reactions occurring for each cation in the group.
Draw a mechanism for each reaction which explains the results. All electron movement must be indicated by arrows.
What mass would carbon disulfide gas (CS2) have if 125 cm3 of the gas at 400°C exerts a pressure of 736 torr?
How many moles of excess base are present? How many additional mL of 0.100 M HCl would be required to neutralize the solution?
What is the maximum amount of aluminum sulfate that can be formed?
The dimerization of Nitrogen Dioxide has a rate constant of 2.45 x 10-2 L/mol min at 25 °C. What will be the concentration of NO2 after 2 minutes? given a starting concentration of NO2 = 11.5 mol/L
why zinc and magnesium good sacrificial anodes for pipeline,but lead and tin will not be good? what would happen to pipeline protected by lead sacrificial anodes,and why?
Explain how effective clean coal technologies are with regard to reduction in carbon dioxide pollution levels and minimization of the carbon footprint.
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