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A bottle of bleach is opened in a closed room where the air is perfectly still. Estimate how long it will take for the bleach molecules to diffuse through the extent of the room, assuming that the bleach bottle is in the center of the room, and the room is perfectly square, and is a 10 foot x 10 foot room.
Assume a bleach molecule has a radius of .15 nm. The molecular weight of bleach (Sodium Hypochlorite NaClO) is 74.35 gms and the room temperature is 300K. Ignore convective currents.
If 5.36 103 kg each of NH3, O2, and CH4 are reacted, what mass of HCN and of H2O will be produced, assuming 100% yield?
Elements, which has the largest first ionization energy and equation correctly represents the first ionization of calcium?
The most common source of copper is the mineral chalcopyrite. How many kilograms of chalcopyrite must be mined to obtain 320. of pure copper?
a sample of a binary compound of boron and chlorine weighing 2.842 g occupies .153 L. this sample is decomposed to give 0.664 g solid boron and enough gaseous chlorine to occupy .688 L at the same temperature and pressure. determine the molecular ..
What is the number of H's per signal and the splitting for each signal for 2 chloropropane in an NMR?
How many grams of water are needed to react with 75.0 g CaCN2?
A 10.00 mL 0.25 M formic acid sample is being titrated with 0.25 M NaOH. What is the pH of the solution after adding 15.00 mL NaOH solution?? Ka=1.8x10-4
Calculate the mass of silver nitrate (in grams) in a 145 mL solution of 5.38 M AgNO3.
Compute the number of rads and rems of radiation in five years from such a level of plutonium.
An ice cube of mass 10.0g. Is at -20oC. How much energy is needed to make the ice into steam at 172oC?
The fourth solution is 10 ml of DI water and 10 ml of solution three 5) The fifth solution is 10 ml of DI water and 10 ml of solution four I'm pretty sure we're supposed to use the C1V1=C2V2 formula
Calculate the pH after 15.0 mL of 0.40M HCL is added to 20.0 mL of 0.50 M NH3 (Kb NH3= 1.8 x 10^-5)
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