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Suppose that an atmospheric chemist combines 165 of methane at STP, 870 of oxygen at STP, and 56.5 of at STP in a 1.8 flask. The reaction is allowed to stand for several weeks at 275 .If the reaction reaches 90.0% of completion (90.0% of the limiting reactant is consumed), what are the partial pressures of each of the reactants in the flask at 275 ?
A solution containing Pt4+ is electrolyzed with a current of 4.20 A. How long will it take to plate out 65% of the platinum in 0.50 L of a 0.010 M solution of Pt4+
A student standardized her I2 solution by preparing a solution of 0.0450 g of ascorbic acid (vitamin C) in a 100 mL volumetric flask. She titrated several 10.00 mL samples of the Vitamin C solution
What mass of CCl2F2 substance must evaporate in order to freeze 200 of water initially at 15 degrees celsius? (The heat of fusion of water is 334 J/g the specific heat of water is 4.18 J/gK .)
How many minutes would be required to electroplate 25.0 g of manganese by passing a constant current of 4.8 A through a solution containing MnO4 -
The density of titanium metal is 4.51g/cm3 at 25 degrees celsius. What mass of titanium displaces 125.0mL of water at 25 degrees celsius.
what is the equation for gypsum when it is heated below 220 degrees celsius and also when it is heated to red heat?
Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can activate or deactivate the ring to substitution
Calculate the wavelength of the photon emitted when an electron makes a transition
Calculate the mass of Sodium and Zinc in grams in the following equations using ideal gas law - Determine the amount of Zinc metal in grams consumed in the reaction.
We had to do an experiment that depolymerized PET into terephthalic acid and ethylene glycol using 1-pentanol and KOH. One of the post-lab questions is as follows:
you have 505ml of a .170m HCL solution and you want to dilute it to exactly .100M. how much water should you add?
A sugar-water mixture contains 45.8 g of sugar and 108.5 g of water. What is the percent by mass of sugar and the percent by mass of water in the solution?
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