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Question- A concentration of aqueous ammonia solution has a density of 0.90 g/ml and is 28.0% by mass ammonia. determine the molar concentration of this solution
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Calculate the concentrations of all species in a 0.310-M solution of H2X if K1 = 1.00E-04 and K2 = 1.17E-07
Calculate the standard potential for this cell at 25 °C. Standard reduction potentials can be found here.
Draw the Lewis Structure for a Nitrate Ion (NO3-1). Assign the formal charge for the central atom, Nitrogen. What is that formal charge?
How many milliliters of 8.52×10-2M Ba(OH)2(aq) are required to titrate 45.50mL of 5.36×10-2M HNO3?
a if 2.0 kg of fe2o3 and 1.5 kg of co are reacted what is the maximum amount of iron that can be produced?b if the
If the molecular weight of a molecule is 180, how many grams would be required to make 100 milliliters of a 2 molar solution
Calculate the partial pressure of each gas and the total pressure after the valve between the flasks is opened. P(He) in mmHg P(Ar) in mm Hg Ptotal in mm Hg
Ammonium nitrate (NH4NO3) decomposes into nitrogen, oxygen, and water. If 12g of ammonium chloride decompose entirely at 300 C with delta H reaction =-236.kJ
Write a balanced chemical equation for the reaction: Na2CO3 and AgNO3? And Its ionic equation please
For an alloy that consists of 90.1 g copper, 102 g zinc, and 5.92 g lead, what are the concentrations of (a) Cu (in weight percent), (b) Zn (in weight percent), and (c) Pb (in weight percent). The atomic weights of Cu, Zn, and Pb are 63.54, 65.39,..
A liquid fuel mixture contains 28.25% hexane, 14.05% heptane, and the rest octane. What maximum mass of carbon dioxide is produced by the complete combustion of 12.0kg of this fuel mixture
What percentage of the 131I released by the explosion would have remained by that time? Use the first order kinetic equation: [A] = [A]o e-kt
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