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Calculate the [H3O+] concentration in 0.45 M solution of barbituric acid, HC4H3N2O3. Ka for barbituric acid is 1.0 X10 ^-5. Show the complete setup.
Determine the molarity of a solution of twenty grams of Ammonium bromide, NH4Br, in enough water to produce 132 mL of solution?
What volume in liters of 0.94 M KOH solution should be added to a 0.090 L solution containing 9.1 g of glutamic acid hydrochloride
Hard water contains Ca2+, Mg 2+, and Fe2+. Water softeners replace these ions with Na+. If 1.0 X 10^3L of hard water contains 0.010 M Ca2+ and 0.0050 M Mg2+
Using curved arrows, show how the species in part (a) can act as Lewis bases in their reactions with HCl, and how the species in part (b) can act as Lewis acids
Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb 6.10 MJ of energy (in the form of heat)
P4(s) + F2(g)-> PF3(g) What mass of F2 is needed to produce 187 g of PF3 if the reaction has a 80.1% yield?
How many grams of potassium chloride will be generated on decomposition of 225 grams of potassium chlorate?
The standard heat of formation of WO3(s) is -843 KJ/mol, and its standard molar entropy
An aqueous solution of ethanol, C2H5OH, is 19.00% ethanol by mass and has a density of 0.9700 g mL-1. Calculate the molarity of the ethanol solution.
effectively prevents hemoglobin from transporting oxygen to cells. How is the carbon monoxide acting in this process?
How many kJ of heat are needed to raise the temperature of 2kg of water from 29 degrees C
A sample of calcium carbonate absorbs 45.5 J of heat, upon which the temperature of the sample increases from 21.1 oC to 28.5 oC. If the specific heat of calcium carbonate is 0.82 J/g K,
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