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The pH of an acid solution is 5.14. Calculate the Ka for the monoprotic acid. The initial acid concentration is 0.010M.
A stock solution is prepared by adding 24 mL of 0.4 M Na3PO4 to enough water to make 76 mL. What is the PO43- concentration of 25 mL of the stock solution
If 8.00 kJ of heat are added to 200. g of water at 20.0 C, what is the final temperature of the water?
Identify and discuss three key features associated with the combustion of polymeric materials or compounds that are relevant to the safety and health of an EH&S or a FS professional responding
An excess of aluminum foil is allowed to react with 225 mL of an aqueous solution of HCl (d = 1.088 g/mL) that contains 18.0% HCl by mass.
Under these conditions, how long would it take for a sample to decompose to 25% of it original concentration?
Chemists have discovered nearly 300 different anthocyanins. Finish drawing a resonance contributor in Box 3 that shows positive charge on one of the other oxygens in this anthocyanin. It is not necessary to draw any electron flow arrows in your re..
A quantity of gas under a pressure of 1.78 atm has a volume of 550 cm square. the pressure is increased 2.50atm while the pressure remains constant what is the new volume.
The molar heat of fusion of water is 6.01 kj/mol. How much heat energy is required to melt one ice cube in a soft drink to form liquid water a 0 degree celcius, if the ice cube has a mass of 18.9 g?
What will be the equilibrium concentration of HI and Cl2 in the container? The answer is: [HI] = 1.47x10^-12 M [Cl2] = 7.37x10^-13 M
If given Cu(OH)2=CuO + ? and separately CuO + HCl= CuCl2 + ? What are the finished equations?
Aluminum will react with bromine to form aluminum bromide (Al2Br6). How many moles of Al are needed to form 28.0 mol of Al2Br6?
Draw a Lewis Structure for C3O2. Draw a Lewis Structure for C2H3NO5
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