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How many liters of oxygen gas at 153 degrees Celsius and 0.820atm can be produced by the decomposition of 22.4g of solid potassium chlorate(KClO3)? the other decomposition product is solid potassium chloride(kCl)
A hypothetical element has a BCC crystal structure, an atomic radius of 0.149 nm and an atomic weight of 96.03 g/mol. What is the density of this element
What is the reaction rate when the concentration of ClO2(aq) is 0.0613 M and that of OH-(aq) is 0.130 M if the temperature is the same as that used to obtain the data shown above
a solution of ethanol c2h5oh in water is prepared by dissolving 65.7 ml of ethanol density 0.79 gcm3 in enough water
Calculate the equilibrium constant for the following reaction: (Ka of HCOOH = 1.7 x 10^-4) HCOOH (aq) + OH-(aq) HCOO-(aq) + H2O(l)
As a technician in a large pharmaceutical research firm, you need to produce 350. mL of 1.00 M potassium phosphate buffer solution of pH = 7.28. The pKa of H2PO4- is 7.21.
A horizontal piston contains 34kg of water that is saturated at 36oC. Heat is transferred to the water until 80% of the water vaporizes.
How much heat in joules is required to heat a 46 {rm g} sample of aluminum from 80 F to 146 F?
Important information about Degree of Unsaturation, Dieldrin, C12H8Cl6O, is a pentacyclic compound formerly used as an insecticide. Can you help me to calculate the degree of unsaturation
what is the total number of joules absorbed by 65.0 g of water when the temperature of the water is raised from 25.0
Write balanced complete ionic equation for the following equation: Express your answer as a chemical equation.
How many grams of Na2CO3 are present in 29.7 mL of a 31.0% Na2CO3 solution. The density of the solution is 1.09 g/mL.
A buffer is prepared by dissolving 4.00 g benzoic acid (C6H5COOH, Ka = 6.3 x 10-5) and 4.00 g sodium benzoate (C6H5COONa) in enough water to prepare 1.00 L of solution. Calculate the pH of this buffer
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