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If liquid is at or above it's flash point, the flame spread rate is fast, and the entire pool is engulfed within seconds. In such a case, the liquid is already evaporating sufficiently to reach the lower flammability limit in the vapor phase over the fuel surface. Can liquid burn if it's ambient temperature is below its flash point? Why, or why not?
A 739 mL gas sample at STP is compressed to a volume of 244 mL, and the temperature is increased to 24 ?C. What is the new pressure of the gas in Pa?
Calcein indicator is added to the solution. The sample then requires 10.00 mL of 0.0120 M EDTA for titration. Calculate for this sample (a) the molarity of the calcium present, (b), the molarity of the magnesium present, and (c) the total hardness..
Draw a molecular orbital diagram for C2 and use it to predict the bond order and magnetic properties for this gas phase diatomic allotrope of carbon.
The heat of reaction for the conversion of natural gas, methane, to carbon dioxide and water is -802 kJ/mol. How many kJ are given off by the combustion of 0.150 mol of methane? The reaction is: CH4(g) + 2 O2(g)→ CO2(g) + 2H2O(g)
How many grams of naphthalene (C10H8) must be added to 25.00 g of CCl4 so that the vapor pressure of CCl4 over the solution is 483 mm Hg?
Give some values of pressure and temperature at which you are sure that the substance called zinc exists in an equilibrium state as a) solid and b) vapor
Show the cycle on a T-s diagram with respect to saturation lines, and determine (a) the thermal efficiency of the cycle and (b) the mass flow rate of the steam.
determining the limiting reactant and mass of the product.phosphorous trichloride can be produced from the reaction of
suppose that 0.90 grams of water condenses on a 75.0 grams of block of iron that is initially at 20 degrees celcius.
Describe how you would prepare a 500 mL of a solution which is 0.500 M sodium and 1.60 M phosphate if you only had sodium chloride and potassium phosphate available
a solution contains an unknown mass of dissolved silver ions. when potassium chloride is add to the solution.a white
question an aqueous solution of potassium phosphate is mixed with an aqueous solution of calcium nitrate. a precipitate
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