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Explain what the theorectical yield of aluminum oxide is if 2.80 mol of aluminum metal is exposed to 2.40 mol of oxygen
In a laboratory class one student group found that 26.6% of A had isomerised after a period of 15.0 minutes when the temperature was maintained at 84.5 °C. What is the half-life in minutes of substance A at that temperature
What is the number (actual count) of [H+] in 10 mLs of water at a specific pH (like pH 9, 7, 2 etc.)
In an alkalinity titration of a 100.0-mL sample of water from a hot spring, 2.56 mL of a 0.0035 M solution of HCl is needed to reach the first equivalence point (pH=8.3) and another 10.42 mL is needed to reach the second equivalence point (pH=4.0)..
Magnesium oxide (MgO) forms when the metal burns in air. (a) If 1.25 g of MgO contains 0.754 g of Mg, what is the mass ratio of magnesium to oxide
What is the length of the side of the unit cell for iron and what is the atomic radius?
If 16.0 mL of .150 M HCL is needed to neutralize all the NH3 from a 2.25-g sample of organic material, calculate the mass percentage of nitrogen in the sample.
calculate the zero point vibrational energies for -o-h and -o-d bonds.if a reaction of these bonds involves breaking
In regards of the following reaction at constant P. Utilize the information here to conclude the value of? Ssurr at 398 K. Calculate whether or not this reaction will be spontaneous at this temperature.
In the manufactoring of computer chips, cylinders of silicon are cut into thin wafers that are 3.00 inches in diameter and have a mass of 1.50g of silicon. How thick, in milimeters( mm) is each wafer if silicon has a density of 2.33 g/cm3. The..
How much heat does your body lose when 1.8 of sweat evaporates from your skin at 25 ? (Assume that the sweat is only water.) The heat of vaporization of water at 25 is 44.0 .
63.0 mL of a 1.20 M solution is diluted to a volume of 208 mL. A 104-mL portion of that solution is diluted using 157 mL of water. What is the final concentration.
An automobile gasoline tank holds 21 of gasoline. When the gasoline burns, 84 of oxygen is consumed and carbon dioxide and water are produced. What is the total combined mass of carbon dioxide and water that is produced?
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