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More strong base is added until the equivalence point is reached. What is the pH of this solution at the equivalence point if the total volume is 48.0 mL ?
A 270- flask contains pure helium at a pressure of 761 . A second flask with a volume of 455 contains pure argon at a pressure of 730 . If the two flasks are connected through a stopcock and the sto
A mixture of three gases, A, B, and C, is at a total pressure of 9.38 atm. The partial pressure of gas A is 1.88 atm and that of gas B is 2.32 atm. What is the partial pressure of gas C?
At 0.967 atm, the height of mercury in a barometer is 0.735 m. If the mercury were replaced with water, what height of water (in meters) would be supported at this pressure? The densities of Hg and
Sodium carbonate (Na2CO3) can be produced by heating sodium bicarbonate (NaHCO3). A student heats 5.128 g sodium bicarbonate to completely decompose the sample to sodium carbonate. 3.2349 g of sodiu
If the pressure of CO2 is 346mmHg at the same temp and volume as the original mixture, calculate the ratio of moles of CO2 produced to moles of the original gas mixture.
which brings the titrated solution back to the equivalence point. What is the molar concentration of the original acetic acid solution?
The final pressure is 15 times greater than the initial pressure. What is the final volume of the gas, assuming constant temperature?
Describe the classification of single and multi-nutrient N,P,K fertilizers identifying the major carriers within the various sub-categories. describing how stable Isotope technology can help improv
How many milliliters of a 0.0987 M solution of Ce(NH4?)2(NO3?)6 will it take to titrate 26.9 mL of a 0.0745 M solution of FeSO4? (In this redox titration, Fe2+ is oxidized to Fe3+, and Ce4+ is reduc
A particular coal contains 2.5% sulfur by mass. When this coal is burned, the sulfur is converted into sulfur dioxide gas. Write the balanced chemical equation for the reaction.
How would you handle the response, and how would you determine the proper type of PPE to be used in this incident? What type of PPE would you recommend?
What is the effect of soil pH on the available forms of Phosphrous(P) in the soil solutionand the dominant Phosphrous(P) species in the soil. Comparing the relationship between labile soil Phosphro
You measure 2.34 g of K2Cr2O7 into a volumetric flask. You dilute the K2Cr2O7 with water to a volume of 250 mL. It takes 35.7 mL of this solution to titrate 17.8 mL of a solution of Na2C2O4 in the p
How many kilograms of sodium carbonate must be added to neutralize 2.01×10^3 kg of sulfuric acid solution A tanker truck carrying 2.01×103 kg of concentrated sulfuric acid solution tips
If 0.75 moles of CaO was reacted in the above reaction and all the heat was used to heat an amount of lead from 20.5 C to 23.4 C, calculate the mass of lead that was heated. Specific heat of lead =
MnO4- is deep purple in aqueous solution, while Mn2+ is colorless. Suppose a solution of KMnO4 is being used as a sample in a redox titration against iron(II) sulfate. What would be indicated by a s
Determine the theoretical and percent yields of ethanol if 684g sucrose undergoes fementation and 349g ethanol is ubtained.
You have a 5.68 g sample of a compound with the formula XCl2, where X is a metal cation. When the sample is treated with an excess of silver nitrate, 10.3 g of silver chloride (AgCl) precipitate. Wh
When an electron is accelerated through a particular potential field, it attains a speed of 9.38 x 106 m/s. What is the characteristic wavelength of this electron?
Suppose you have a 40.3 mL sample of a solution containing a mixture of nitric acid (HNO3?) and hydrochloric acid (HCl). The concentration of hydrogen ions in this solution is 0.241 M. When you add
How many moles of sodium hypobromite should be added to 1.00 of 5.0×10-2 hypobromous acid to form a buffer solution of = 9.15? Assume that no volume change occurs when the is added.
You have a solution of sodium nitrate containing 140 g at 65 degrees celcius. How many additional grams of solute must be added to it to make the solution saturated.
A sample consisting of various gases contains 3.6 * 10-6 mole fraction of radon. This gas at a total pressure of 33 atm is shaken with water at 30°C. Calculate the molar concentration of radon i
If the reaction is CaC2 + 2H2O → H2C2 + Ca(OH)2, how many liters of acetylene gas at 1.00 atm pressure and 0.00 °C are produced from 75.0 grams of calcium carbide (CaC2)?