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Exactly 18.9 mL of water at 26.0 C are added to a hot iron skillet. All of the water is converted into steam at 100C. The mass of the iron skillet is 1.35kg and the molar heat capacity of iron is 25.19 J/mol C. What is the temperature change of the skillet?
What would be the change in pressure in a sealed 10.0 L vessel due to the formation of N2 gas when the ammonium nitrite in 3.0 L of .700 M NH4NO2 decomposes
crystallizes with the body-centered cubic unit cell. Calculate the radius of a sodium atom. and what is the edge length of the cell in picometers?
Silver consists of two major isotopes with the following percent abundances and atomic masses: 107Ag (51.84% and 106.90509 amu) and 109Ag (48.16% and 108.90476 amu). Calculate the average atomic mass of silver to five significant digits.
A solution of methanol, CH3OH, cotains 55.0 grams of methanol in 100. mL of water solution. What is the molarity of methanol in the solution?
Calculate the average molar bond enthalpy of the carbon-chlorine
The air pollutant NO is produced in automobile engines because of the high-temperature reaction below. If the initial concentrations of N2 and O2 at 1000 K are both 1 M, what are the concentrations of NO, N2, and O2 when the reaction mixture reach..
Determine what mass of hydrogen is required to form 624g of methanol by the reaction CO+2H2->CH3OH.
What is the pH at the half-stoichiometric point (that is, what is the pH when you have added 50% of the total volume of base required to react with all of the acid originally present?)
The iridium is plated out from the solution onto a boron doped diamond electrode at constant potential. The initial mass of the electrode before plating was 7.4938 g
Calculate the amount of solution that contains 8.0g calcium cloride (CaCl2) from 35% solution of CaCl2?
How will the following changes alter the concentration of CO2(g) in the following reaction exothermic reaction? C6H12O6(s) + 6O2(g) 6CO2(g) + 6H2O(g)
What is the H+ concentration of an aqueous solution with a pOH= 4.38 at 25 degrees celcius.
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