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How much 0.100 M HC2H3O2 and 0.100 M NaC2H3O2 are required to prepare 20.0 mL of a buffer with a pH of 5.000?
Write balanced net ionic equations for the following reactions in basic solution. Express your answer as a chemical equation. Identify all of the phases in your answer.
The H2 gas bubbles out of aqueous solution and is collected in a 457.0 mL container at 686.5 Torr and 25 C. define how many grams of zinc reacted. Be sure to account for the vapor pressure of water in the collected gas sample.
Initially, a gas occupies 45.4L at STP. What volume of gas (in L) will be occupied if the temperature increases to 49oC and a new pressure of 0.54 atm
Alkali metals are extremely reactive with water. Suppose I give you a 55.50 g chunk of cesium and you throw it into a lake. When it reacts with water to form cesium hydroxide and hydrogen gas
Write a hypothetical inner-sphere redox mechanism for the reaction of [Cr(H2O)6]2+ with cis-[Co(NH2CH2CH2NH2)2I2]+ (aq) in acid solution to give (ultimately) cis-[Cr(H2O)4I2]+, Co2+(aq), and [NH3CH2CH2NH3]2+."
Predict the intensities of the peaks at masses 57 and 114 in the spectrum of 2,2,3,3-tetramethylbutane. Support your answer with its corresponding fragmentation reaction.
pvc processors use a very high molecular weight acrylic processing aid for production of rigid pvc foamsheet of high
Explain when aqueous solutions of cadmium chloride and sodium sulfide are mixed, a precipitate of cadmium sulfide forms, leaving soluble sodium chloride in the solution. Comprise states in your answer.
Draw the two chairs (chair 1 and chair 2) conformers of trans-1-methyl-3-isopropylcyclohexane and indicate which one is the most stable. Draw the Newman projection of the most stable conformation
Acetylene, C2H2, is a gas commonly used in welding. It is formed in the reaction of calcium carbide, CaC2, with water. Given the thermochemical equations, calculate the value of ?H°f for acetylene in units of kilojoules per mole.
A certain gas has a volume of 200 dm3 at 27oC and 2 atmospheres of pressure. What is its volume at STP?
Metals such as magnesium and zinc react with dilute sulfuric acid to give hydrogen, according to the equation: M (s) + H2SO4 (aq) -------> MSO4 (aq) + H2 (g) When 5.00 g of a mixture of powdered magnesium and zinc were dissolved in diluted sulfuri..
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