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You are presented with identical metal containers of about 5 liters capacity each about half full of fuel. The containers have short neck and are normally closed by screw cap of about 30mm diameter. The cans contain
1. petrol(gasoline, flaspoint-43 degree Celsius.)
2. methyl alcohol (methanol, flashpoint 11 degree Celsius.)
3. paraffin (keresone, flashpoint 50 degree Celsius.)
Explain concisely what would happen if top was taken off and a lit match was immediately dropped in the head space of each can. Assume the ambient temperature and thus that of liquid is 15 degree Celsius.
A gaseous fuel mixture stored at 752 mmHg and 298 K contains only methane and propane . When 11.6L of this fuel mixture is burned, it produces 767kJ of heat.
the pH of a neutral solution is 7.83. What is the value of Kw at that temperature?
g proteins are often part of signal transduction networks within cells. briefly describe how g proteins propagate a
You need to use 0.050 moles of F- ions for an experiment. How many milliliters of a 2.6 M solution of SrF2 solution do you need in order to obtain 0.050 moles of F- ions
Find the expression for the reversible pressure-volume work of an isothermal van der Waals gas with a constant number of moles (integrate the expression fully from Vi to Vf) (b) One mole of a gas at 300 K is compressed isothermally and reversibly ..
If an organic chemist nitrated chlorobenzene, would the ortho:para ratio be less than, equal to, or greater than the 38:62 ratio observed with the nitration of bromobenzene
An antacid tablet containing calcium carbonate as an active ingredient required 26.8mL of .112 M HCL for complete neutralization. What mass of CaCO3 did the tablet contain?
To prepare 5.0 L of a 3.50 M solution of Potassium Hydroxide (KOH), how many grams of Potassium Hydroxide must be used?
a biochemical engineer isolates a bacterial gene fragment and dissolves a 10mg sample in enough water to make 30ml of
Xenon is a gas found in some automobile headlights. The density of xenon at room temperature and pressure is 5.3 g/L. What is the mass, in pounds, of 1.00 quart of xenon
a standard solution of sodium hydroxide has a molar concentration of 0.128m. you use 25.00ml of a solution of
A student determined the calorimeter constant of the calorimeter. The student added 50.00 ml of cold water to 50.00 ml of heated distilled water in a styrofoam cup the initial temperature pf the cold water was 21.00 degrees celcius and of the hot ..
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