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What is the Normality of a 0.25M phosphoric acid solution? Question options: 0.25N 0.50N 0.75N 3.0N
How might there still have been a chemical reaction even though they could not see anything happen?
H3PO4 is a tripotic acid with a ka1=7.5x10^-3, ka2=6.2e-8 and ka3=4.8e-13. What is the value of K for H2PO4 PO4^3- + 2H+
A 300.0-mL saturated solution of gold (II) phosphate, contains 0.31 grams of dissolved salt. a. Write an equilibrium expression for the solubility product constant.
A 3.664 g sample of a monoprotic acid was dissolved in water and required 20.27 mL of a 0.1578 M KOH solution for neutralization. what is the molar mass of the acid
How do you make a supersaturated solution. How is this different than a "saturated" solution
The midpoints of the three pH jumps occurred at 15.35 mL, 19,77 mL, and 22.05 mL of added base. What was the concentration, in mol/L and mg/L, of Cu^2+ and Zn^2+ in the original solution
A student heated a 4.901 g sample of hydrated iron chloride. After heating, the anhydrous iron chloride has a mass of 3.010 g. Calculate the percentage by mass of water in the hydrated compound.
A sample of nitrogen gas, N2 is collecyed in a 100 mL container at a pressure of 688 mm Hg and a temperature of 565 degress celsius. How many grams of nitrogen gas are present in this sample.
What evidence do you have that your product consists of a single geometric isomer or is a mixture of isomers? Does the melting point give such information
On the basis of what you have learned about the intermolecular forces, predict which liquid has the highest boiling point? Lowest surface tension?
Given the values of ΔH ° rxn , ΔS ° rxn , and T below, determine ΔS univ. ΔH ° rxn = 80kJ , ΔS rxn = 143J/K , T= 299K Express your answer using two significant figures.
how do you calculate the H+ in the following solution: [OH-] = 3.44 x 10-1 - need the steps please.
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