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Oxygen reacts with CO to form CO2 as the only product. The proposed first step of the mechanism is: What second step is required to give a satisfactory mechanism?
A 325ml sample of gas is intially at a pressure of 721 torr and a temperature of 32 cecius. If this gas is compressed to a volume of 286 ml and the pressure increases to 901 torr, what will be the
The precipitated AgCl was washed, collected, dried and found to have a mass of 1.10 grams. Calculate the percent chloride in the unknown.
Question: At a certain temperature the vapor pressure of pure benzene and pure toluene are 380 torr and 130 torr, respectively. If 7.97 mol benzene is mixed with 5.90 mol toluene, what is the total
A 35.0 mL sample of an unknown HClO4 solution requires 41.3 mL of 0.102 M NaOH for complete neutralization. What was the concentration of the unknown HClO4 solution? The neutralization reaction is:
Decomposition of KClO3 is sometimes used to prepare small amounts of O2 in the laboratory: 2KClO3(s) 2 KCl(s) + 3 O2(g). How many grams of O2 can be prepared from 4.50 g of KClO3?
List the following compounds in order of increasing lattice energy (from least negative to most negative): LiI, LiF, CaO, RbI.
The hydroxide reacts with the carbon dioxide to form solid lithium carbonate and liquid water. How many grams of carbon dioxide can be absorbed by 1.00g of lithium hydroxide?
Calculate the final temperature of a mixture of 110.0 g of ice initially at -10.5 degrees Celcius and 396.0 g of water initially at 93.5 degrees Celcius.
The designers have two options. one tanks is 42L in size and maintained at 25C while the other is 28L and help at 0.0C, both tanks are pressurized to 5.0 atm. How many grams of hydrogen can be store
A 0.421 g sample of aspirin prepared in the laboratory is dissolved in 95% ethanol, diluted with water, and titrated to a phenolphthalein endpoint with 17.3 mL of 0.114 M NaOH. What is the percent
Determined that the sodium hydroxide molarity was 0.1234 M, 0.1244 M, and 0.1199 M, respectively. Calculate the sample mean and the sample slandered deviation?
Barium reacts with a polyatomic ion to form a compound with the general formula Ba3(X)2. What would be the most likely formula for the compound formed between sodium and the polyatomic ion X?
What is the pH of a solution prepared by mixing 15.00 mL of a 0.3005 M solution of lactic acid with 15.00 mL of 0.1515 M NaOH? Ka for Lactic Acid= 1.4x10^-4
Two moles of gas A spontaneously convert to 3 moles of gas B in a container where the temperature and pressure are held constant. The sample originally took up 30.0L of volume. What is the new volum
A cylinder of compressed gas is labeIed "Composition (mole%) : 4.5% H2S, 3.0% CO2, 20% CO, Remaainder N2)." The pressure gauge attached to the cylinder reads 46 atm. Calculate the mole fraction and
Two liters of the alcohol are left in an open container at 22 degrees Celcius in a 12x12x8.0 ft room. After equilibrium is established what is the pressure of isopropyl alcohol vapor in the room? (1
What is the process for drawing them? Is there a procedure to follow to be able to draw the lewis structure of any element and compound? If so, what is it?
How many moles of bricks have a mass equal to the mass of the earth? Write answer as a decimal to one decimal place.
A Cu/Cu2+ concentration cell is constructed in which both electrodes are pure copper. The Cu+2 concentration for one cell-half is 0.5 M, for the other it is 0.1 M. Is a voltage generated between the
(a) What is the composition of a liquid mixture that boils at 90 oC when the pressure is 19 kPa? (b) What is the composition of the vapor produced?
It is found that the boiling point of a binary solution of A and B with XA = 0.4217 is 96 oC. At this temperature the vapor pressures of pure A and B are 110.1 kPa and 94.93 kPa respectively. (a) Is
Question: The standard reaction Gibbs energy of the decomposition of CaCO3 to CaO and CO2 at 1173 K is 0.178 kJ mol-1. Calculate the equilibrium constant for the decomposition.
Write a balanced equation for the photosynthesis reaction in which gaseous carbon dioxide and liquid water react in the presence of chlorophyll to produce aqueous glucose (C6H12O6) and oxygen gas.
The NaBr,1-butanol and water are combined. Sulfuric acid is added and the mixture is fefluxed. After reflux two layers are present. I need to distill the mixture until no more water-insoluble dropl