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Iron (III) sulfide reacts with carbon monixide according to the following equation: Fe2O3 + 3CO yields 2Fe + 3CO2. A reaction mixture initially contains 22.55g Fe2O3 and 14.78g CO. Once the reaction has occurred as completely as possible, what mass (in g) of the excess reactant is left?
Explain the use of nuclear isotope in medical field and Write a paragraph expaining what nuclear isotope can be used for medical purpose
What volume of nitrogen gas is produced from the liquid nitrogen spill if the temperature of the room is 25 degrees C at 1.00 atm?
AgCl has a 78.1% ionic character and a diplole moment of 11.5D. what is the distance between the Ag and Cl atoms?
Iodine-131 is a radioactive isotope. After 9.00 days, 46.0% of a sample of 131I remains. What is the half-life of 131I
The first equivalence point was at 7.59mL and the second equivalence point was at 14.91 mL. My calculated pKa1 is 2.01 and pKa2 is 5.71. What is the molarity of the maleic acid
What is the melting point of a 20% by weight aqueous solution of a sugar whose molecular weight is 180 g/mol. The Kb for water is 0.51 (degrees Celsius*kg)/mol.
A 21.8 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter, according to the following reaction. If the temperature rises from 25.0°C to 62.3°C, determine the heat capacity of the calorimeter. The molar mass of ethanol is 46.07 g/mol.
The solution diluted in half by water (1 mL of X and 1 mL of H2O) has an absorbance at 425 nm of 0.8 and a molar extinction coefficient of 1.5 ? 103 M-1 cm-1. What is the molar concentration of the original solution of X? (1 cm cuvette)
Consider the reaction 2KClO_3(s)\rightarrow 2 KCl(s)+3O_2(g) and the following table of values: Substance Delta G (kJ/mol) KClO_3(s) -296.3 KCl(s) -409.2 O_2(g) 0 State whether it would be worthwhile to investigate finding a catalyst to use in thi..
calculate each of the following for the reaction that occurs when 56.0ml of 0.50m barium chloride solution are mixed
Ozone molecules in the stratosphere absorb much of the harmful radiation from the sun. how many ozone molecules are present in3.00 L of air under the stratospheric ozone conditions of 265 K temperature
What is the formula for a bicarbonate salt using X to represent any +1 charged cation. Same question for the formula for a carbonate salt.
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