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Write balanced (a) molecular, (b) overall ionic, and (c) net ionic equations for the reaction between an aqueous solution of phosphoric acid, H3PO4(aq), and an aqueous solution of sodium hydroxide. The products are sodium phosphate and water.
How many grams of NH4Cl must be added to 0.490 L of 1.00 M NH3 solution to yield a buffer solution with a pH of 8.90?
Calcium and Magnesium carbonates occur together in the mineral dolomite. Suppose you heat a sample of the mineral to obtain the oxides,CaO and MgO
Write a balanced overall equation for each isomer of stilbene (cis and trans)
Explain the general idea of the LCAO-MO method.
the elements of which groups in the periodic table release the most energy by gaining an electron. the elements of which group in the periodic table absorb energy when gaining an electron.
Calculate the partial pressure of each gas in the container. Express the pressure values numerically in atmospheres, separated by commas.
The % of antifreeze should be raised to twenty five percent by draining some of the mixture and adding 100% antifreeze determine how much mixture should be drained?
Use heat of formation data to determine H for the combustion of hydrogen sulfide according to the following reaction: 2 H2S(g) + 3 O2(g) ? 2 SO2(g) + 2 H2O(?) ?H = ? ?Hfo for compounds:
What size sample containing 12.0% chlorine (Cl) should be taken for analysis if the chemist wishes to obtain a precipitate of AgCl which weigh
Many homeowners treat their lawns with CaCO3(s) to reduce the acidity of the soil. Write a net ionic equation for the reaction of CaCO3(s) With a strong acid.
How and why are the lines from the metal salt solutions different from the hydrogen lines. Explain in terms of theory of hydrogen atoms and salt solution atoms.
The water level in a graduated cylinder initially at 225 rises to 278 after a piece of lead is submerged. What is the mass in grams of the lead?
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