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Why does ionic bonding almost always result in a solid rather than ion-pair molecules?
if you titrated it with .233 M sodium hydroxide solution, and it took 8.33 ml of the base to neutralize the acid, what was the concentration of the nitric acid? Write the Neutralization reaction, balance it, NAME the products THEN solve the proble..
Draw an approximante titration curve for the titration of 75 mL of 0.020 M NH3 (pKa of NH4=9.24) with 0.10 M HCl. Label the axes
When 4 g sample of NH4NO3(s) was dissolved in 60 g of water in a coffee-cup calorimeter, the temperature drops from 296 to 291 K.
Standard solutions of calcium ion are suually prepared by weighing an apporpriate amount of primary standard grade calcium carbonate, dissolving it in concentrated HCl, and diluting to the appropriate volume.
Balance the following redox reaction if it occurs in acidic solution. What are the coefficients in front of H2C2O4 and H2O in the balanced reaction
Volume of sample = 90.0 mL. Temperature = 25 C atmospheric pressure = 745 mm equilibrium vapor presssure of water at 25C = 23.8 mm Hg Calculate number of moles of hydrogen gas collected
The final temperature of the calorimeter is 150°F. What is the mass of titanium used? The specific heat capacity of water is 4.184 J g-1 °C-1.
the heat of fusion of water is 6.008x103 jmol at its normal melting point of 272.15k. calculate the freezing point
A solution consists of 10g of liquid X (MW:50) and 9g of liquid Y (MW:30). The vapor pressures of pure X and Y are 40 and 70 mmHg, respectively, at 20°C. What are Nx and Ny (N = mole fraction)? What is the partial pressure of X over the solution a..
Calculate the downward pressure in pascals due to gravity exerted by the bottom face of a 3.25kg cube of iron that is 7.50 cm
How many grams of Na2CO3 Standard must be used if the titration is expected to require 40 mL of 0.1 M HCl titrant?
Select each side of the mass balance equation for an Fe3(PO4)2 solution where the existing species are Fe2 , PO43-, HPO42-, H2PO4-, H3PO4, FeOH?
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