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A [v] L sample of carbon monoxide is at [ti]  oC and [po] atm.  What volume will the gas occupy at [pf] atm and [tf] oC?

Phenol is a compound which contains 76.57% carbon, 6.43% hydrogen, and 17.0% oxygen.  The empirical formula of phenol is:

Express the result of the following calculation in scientific notation: 0.0845 cm 2 ÷ 30.2 cm

In the following reaction, which species is the reducing agent?3Cu  +  6H+  +  2HNO3 → 3Cu+2  +  2NO  +  4H2O

In the following reaction, which species is oxidized?8NaI  +  5H2SO4 →4I2  +  H2S  +  4Na2SO4  +  4H2O

From the following pair choose the one with the larger radius:  S or S-2.

When the following equation is balanced in acidic solution; NO3-  +  I- → IO3-  +  NO2the coefficient of NO3- is:

A [m] gram sample of potassium chlorate was decomposed according to the following equation:2KClO3 → 2KCl  +  3O2How many moles of oxygen are formed?

The density of gasoline is [d] g/mL at 20 oC.  What is the mass of one gallon of gasoline? (1 qt = 0.9463 L, 4 qt = 1 gal) (answer in grams)

Suppose the following reaction is carried out starting with 103 grams of Ca3(PO4)2 and 75.0 grams of H2SO4.  Which substance is the limiting reactant?  (Hint:  calculate the T.Y. for calcium sulfate first.)Ca3(PO4)2  +  3H2SO4 →  3CaSO4  +  2H3PO4