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A solid block of exactky 100.0 cm 3 has a mass of 153.6g. Determine its density. Will the block sinf or float on water?
how many moles of carbon dioxide will be formed upon the complete reaction of 0.793 moles carbon monoxide with excess water?
A certain first order reaction has a rate constant of 0.0215 s-1 at 24 degrees C. What is the value of rate constant at 70 degrees C if Ea=90.0 kJ/mol.
Discuss need for alternative energy sources. Describe options: Nuclear Energy, Solar Energy, Geothermal Energy etc.
What is the density (in g/cm^3) if the ionic radii of Na+, F- ions are 102.9 pm and 136.0 pm, respectively? Hint: notice that the cation and anion touch each other and together make up the side of the cube.
If the reaction is carried out in a 2.0 L container and 0.010 mol of PH3 is consumed each second, what are the rates of production of P4 and H2?
The saturated solutions of Ca(OH)2 contain a white solid which is removed by filtering. What is this solid. If that solid were not removed, how would it affect the calculated values of the solubility product constant (Ksp) and the solubility of Ca..
If 21.0 mL of silver nitrate solution reacts with excess potassium chloride solution to yield 0.882 g of precipitate, what is the molarity of silver ion in the original solution
If y is the height above sea level, show that the decrease of atmospheric pressure due to a rise of dy is given bydP/P = (-Mg/RT)dy,
0.3 M NaH2PO4 calculate acidic and basic buffer capacity. How muc of strong base needed to bring buffer pH one unit up?
55.0 mL of a 1.70 M solution is diluted to a volume of 278 mL. A 139 mL portion of that solution is diluted using 175 mL of water. What is the final concentration
write Lewis structure for Oxygen difluoride, OF2. How many lone pairs are one the oxygen atom
A mixture of gases contains 4.32 g of Ar, 7.88 g of BF3, and 4.86 g of N2. What is the partial pressure in atm of each component of this mixture if it is held in a 61.3-L vessel at 10.9 oC? Use R = 0.0821 L-atm/mol-K as the value of the gas consta..
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