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when 50.0 gram of metal at 75.0 C is added to 100 grams of water at 15.0 C the temperature of the water rises to 18.3 C. Assume that no heat is lost to the surroundings. What is the specific heat of this metal
Liquid octane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 9.1 g of octane is mixed with 22.7 g of oxygen.
What is the formula of the zinc sulfate hydrate? name this compound
A 60.00 mL sample of 0.075 M benzoic acid was titrated using 0.050 M KOH. What will be the pH at the equivalence point in the titration.
How many grams of CH4 is needed to produce 33.5 g CHCl3.
an airplane is pressurized to 650 mmhg. The partial pressure of oxygen is 137 mmhg. If the partial pressure of oxygen drops below 100.mmhg.
If the volumes in the buret and the flask are identical and the concentration of the acid in the buret is 0.250 M, what is the concentration of the base in the flask.
How many moles of NaF must be dissolved in 1.00 liter of a saturated solution of PbF2 at 25 °C to reduce the Pb2+ to 1 x 10-6 molar?
Buffering capacity You want a solution that will buffer the addition of either 10 micromoles of acid or 10 micromoles of base. Total buffer concentration is equal to the concentration of the acid plus the concentration of salt of the acid
What is the pH of a buffer solution containing 0.155 mol dm-3 of benzoic acid and 0.315 mol dm-3 sodium benzoate.
There are two reason why the enols of beta-dicarbonyl compounds, such as pentane-2,4-dione are relatively stable. One is that they are conjugated and the pi-electron overlap due to the conjugation provides additional stability.
When heated, lithium reacts with nitrogen to form lithium nitride: 6Li(s) +N2(g) → 2Li3N(s)
How many grams of solute are needed to prepare 500.0 mL of a 0.375 M CH3OH solution.
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