A mixture is known to contain mercury (II) oxide. A 4.85 gram sample of the mixture is heated, decomposing the mercury (II) oxide, and 254 mL of oxygen gas are collected at 32.0C and 735.0 torr. What is the percentage of mercury (II) oxide in the mixture? Box your answer.

Ithink its called the coefficent.

The mole ratio of hydrogen to ammonia is 3: 2.

The reaction 2kalsi3o8 + 2(h+ + hco3-) + h2o  →  al2si2o5(oh)4 + 2k+ + 2hco3- + 4sio2 shows that feldspar kalsi3o8 is chemically altered by hydrolysis to form chalky-looking clay mineral kaolinite al2si2o5(oh)4. the chemical breakdown of potassium feldspar due to exposure to acidic water results to the mineral binding with the water molecule to become kaolinite with silica and potassium and bicarbonate ions in solution.