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a) Predict the products and what is balanced net ionic equation for the following.
K2SO3(aq) + H3PO4(aq) ->
Enter the balanced net-ionic equation as a text entry. Use phase symbols for all your reactants and products. Use super- and subscripts as needed.
Hint: Phosphoric acid is a weak triprotic acid. Assume the complete reaction of all three acidic hydrogens in the phosphoric acid.
b) "Hard" water often contains dissolved Ca2+ and Al3+ ions. One way to remove them from the water is by adding sodium phosphate. The phosphate salts of Ca2+ and Al3+ are insoluble. A "hard" water sample is 0.0511 molar in CaCl2 and 0.0368 molar in Al(NO3)3. What mass (in grams) of sodium phosphate needs to be added per 1.00 liter of water to precipitate all the Ca2+ and Al3+ ions? Give answer in three significant digits with no units.
A 3340 g solution of HO(CH2)2OH and water contains 0.362 L of ethylene glycol. Calculate the mole fraction of HO(CH2)2OH in the solution.
Cesium ions are added to flood the flame with electrons. It needs to be in a large concentration, larger than what is being measured.
Determine the energy of an electron in the given quantum level of each of the following ions. (Hint: Each of the ions has a different number of protons
Which process is accompanied by an increase in entropy?
Using the van der Waals equation, calculate the pressure exerted by 15.0 mol of carbon dioxide confined to a 3.00-L vessel at 56.0 oC. Note: Values for a and b in the van der Waals equation: a = 3.59 L2.atm/mol2, and b = 0.0427 L/mol.
There were two "oil shocks" in the seventies, one in 1973 and another in 1979. Explain what caused the shocks and what effect it had on the American public and economy. Please suggest a realistic way our country can save ourselves from this type..
Carbon-14 has a half-life of 5730 years. In a plant fossil, you find that the 14C has decayed to 1/32.0 of the original amount.
Please answer fast with proper explanation: For the equation below:
In the conversion of glucose to pyruvate, how many of the actual steps involve electron transfer
A 134-mL bubble of hot gases at 217C and 1.79 atm escapes from an active volcano. What is the temperature, in C, of the gas in the bubble outside the volcano if the new bubble is 164mL and the pressure is 0.759 atm?
The boiling point of HCl is -84C and that of HBr is -70C. Why is this reasonable on one account however opposite from what one would expect from a consideration of polarity? Explain which trend is more important in this case
Question- One-hundred milliliters of 1.75 mM NaCl is mixed with 80.0mL of 3.20 mM MgCl2 at 20 degrees Celsius. Calculate the osmotic pressure of each starting solution and that of the mixture, assuming that the volumes are additive and that both s..
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