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Suppose 24.0g of sodium nitrate is dissolved in 350. mL of a 0.40M aqueous solution of ammonium sulfate.
Calculate the final molarity of nitrate anion in the solution. You can assume the volume of the solution doesn't change when the sodium nitrate is dissolved in it.
Round your answer to 3 significant digits.
If 36.8 grams of FeS2 is allowed to react with 22.0 grams of O2 according to the following unbalanced equation, how many grams of Fe2O3 are produced
Arrange these aqueous solutions, each 10% by mass in solute, in order of increasing freezing point and boiling point. Explain your reasoning.
How many grams of O2 are needed to react with 18.5 grams of Mg? 2 Mg(s) + O2(g) → 2 MgO(s)
At 710.mm hg a sample of nitrogen gas occiuped 625 ml.what volume does gas occupy if the temperature remains constant and the pressure increases to760.mm hg?
Nitrogen and Oxygen gases may react to form nitrogen monoxide. At 1500 C, Kc=1.0*10-5. If .030 mol N2 amd O2 are sealed in a 1.0 L flask at 1500 C. what is the concentration of NO when equlibrium is established
Draw the structure of the alkoxide and the alkyl bromide needed to produce 2-ethoxy-2-methylpropane
What is the pH of a solution that is 0.75M in sodium acetate and 0.50M in acetic acid. (Ka for acetic acid is 1.85x10^-5)
calculate the concentrations of h+, oh-, f-, and undissociated hf molecules in 0.10 M hf. Ka for HF is 7.1x10^(-4).
calculate the radius of a au gold atom if au atom has a face-centered unit cell ? it is given that its density 19.32
1. how many times would a mole of timbits placed end to end reach from here to mars and back. distance from earth to
A solution of household bleach contains 5.25% sodium hypochlorite, NaOCl, by mass. Assuming that the density of bleach is the same as water,
The heat of combustion of CH4 is 890.4 kJ/mol and the heat capacity of H2O is 75.2 J/mol×K. Find the volume of methane measured at 298 K and 0.790atm required to convert 1.33L of water at 298 K to water vapor at 373 K.
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