Calculate the ph of a mixture
Calculate the pH of a mixture containing 50 mL of 0.1M NaH2PO4 and 150 mL of 0.1M Na2HPO4. How many mL of 0.1M H3PO4 should be added to the above buffer to lower the pH by one unit?
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A sporting goods store purchased $7,600 of ski boots in October. The store had $3,600 of ski boots in inventory at the beginning of October, and expects to have $2,600.
Direct labor standards at Cepeda Manufacturing Corporation allow 5 direct labor-hours for every unit produced. The standard direct labor rate is $12.00 per hour.
Interstellar space can be considered as having 10 molecules of hydrogen per cubic centimeter and an average temperature of 2.7 K. Determine the pressure of hydrogen in interstellar space.
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Offsetting these factors is the observation that the average commission per trade is likely to increase by 15 percent because trades are expected to be larger in the coming year.
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Calculate delta H for the reaction: 2N2O3(g) --> N2O4(g) + 2NO(g)
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