General Chemistry Answers

Write the balanced equation for the reaction of lead(II) nitrate (aq) with sodium iodide (aq) to form lead(II) iodide precipitate and sodium nitrate solution 

2. Determine the empirical and molecular formula for chrysotile asbestos.

Chrysotile has the following percent composition: 28.03% Mg, 21.60% Si,

1.16% H, and 49.21% O. The molar mass for chrysotile is 520.8 g/mol.

Coal burns rapidly in a fluidized bed, even at 1500°F. Based on bed volume, the heat release is 300,000–400,000 Btu/(hr)(ft³). Counting the open furnace space above the bed the rate is 100,000–200,000 Btu/(hr)(ft³). Suppose that 200,000 Btu/(hr)(ft³) are generated in a 40 ft steam generator, that the water enters two sets of coils at 70°F, and that in the upper set of coils the water flow rate is 3,000 lb/hr leaving as steam at 900°F and 380 psia. If the steam leaving the lower coils is at 1200°F and 400 psia, what is the flow rate of the water into the lower set of coils?

What is the freezing point of a solution of 10 grams of glucose(C6H12O6) and 1500 grams of water

Determine the boiling point of a solution of 10 grams of a substance of molar mass of 94g/mol in 500 grams of water

calculate the boiling point of a solution containing 12g C₆H₁₂O₆ dissolved in 200g of water H₂O. (0.512^oC - K₆ of H₂O)

calculate the boiling point of a solution containing 12g glucose C₆H₁₂O₆ dissolved in 200g of water H₂O.(0.512^oC-K₆ of H₂O)

How many grams of PbCl2 can be produced from the addition of 42 mL of a 0.86 M Pb(NO3)2 solution to 142 mL of 0.65 M NaCl?

An air bubble is formed under water at a dirt where the pressure is 2.2atm. If the initial side of the bubble is 1.5ml what is the volume when it reaches the surface where the pressure is 1.8mAn air bubble is formed under water at a dirt where the pressure is 2.2atm. If the initial side of the bubble is 1.5ml what is the volume when it reaches the surface where the pressure is 1.8m

The isotopes of oxygen and their percentage abundance are 8^16 0 (99.76%);8^18 0.calculate the relative atomic mass for oxygen