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Concentrated nitric acid (HNO3) has a density of 1.42 g/mL and is 70% nitric acid. Calculate the molarity of the acid if 30 mL of the concentrated acid is mixed with 255 mL of water.
what is the change of enthalpy in condensing 15.0 g of water at 100 degrees C at constant pressure.
The oxide is first reduced to Fe^2+, the Fe^2+ requires 4.00mL of 0.0200 M KMnO4. The reaction in acid is: 5Fe^3+ + MnO4^- + 8H^+ ---------> 5Fe^3+ + Mn^2+ + 4H20. Calculate the mass of Fe, and the mass of Fe2O3.
gallium has an average atomic mass of 69.7 amu. in a typical sample 60.4 of ga exists as ga-69 68.9257 amu. what is the
A 99.8mL sample of a solution that is 12.0% KI by mass(d=1.093g/mL) is added to 96.7mL of another solution that 14.0%Pb(NO3)2 by mass (d=1.134g/mL). How many grams of PbI2 should form.
What is the coordination environment of F in a hypothetical relative of CaF2, in which Ca forms a hcp array and F occupies all the tetrahedral sites?
2N2O5----> 4NO2 + O2. When 25.0g of N2O5 is allowed is decompose. It is found that 10.0g of NO2 forms. What is the percent yield
A 391 mL of sample of HClO4 has pH of 0.2439. If 619 mL of distilled water was added to the HClO4 solution, what would the new pH be
Explain what major respect is NO2 a more important species than SO2 in terms of participation in atmospheric chemical reactions
in discussing solar-thermal so far weve mostly focused on the large central-station power plants that generate
How many mL of Br2 (l) with a density of 3.12 g/mL must you dispense to have 1.56 mole (mol) of Br2 (l).
How long would it take for 1.50 mol of water at 100.0 degree's C to be converted completely into steam if heat were added at a constant rate of 22.0 J/s
Consider the design of a sine-wave generator. List the operational parameters that should be considered in this design project
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