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If 25 g of al and 100g of br2 are reacted and if 64.2 grams of aliminum bromide is formed. what is the limiting reagent?
a gas diffuses only .5 times as fast as an oxygen molecule at the same temperature. what is the molecular weight of the gas?
The solubility of AlF3 is 6.7 gms. of AlF3 per liter of solution. the density of a saturated AlF3 solution is 1grm per ml. the Ksp of AlF3 is
A chemist dissolves 284 mg of pure potassium hydroxide in enough water to make up 140 mL of solution. Calculate the pH of the solution.
How much heat is evolved when 27.0 g of glucose is burned according to this equation? C6H12O6 + 6O2 → 6CO2 + 6H2O; Δ H comb. = -2808kJ
The Haber process is very important for agriculture because it converts N2 (g) from the atmosphere into bound nitrogen which can be taken up and used by plants. The reaction is N2 + H2->NH3
Suppose a 5.00 L sample of O2 at a given temperature and pressure contains 2.73 × 1023 molecules. How many molecules would be contained in 5.00 L H2 at the same temperature and pressure.
Hair splits most easily along its fiber axis, whereas fingernails tend to split across the finger (sideways) rather than along it. What are the directions of the keratin fibrils in hair and in fingernails
Magnesium has three naturally occurring isotopes, 24Mg (isotopic mass = 23.9850 amu, abundance 78.99%), 25Mg (isotopic mass = 24.9858 amu, abundance 10.00%), and 26Mg (isotopic mass = 25.9826 amu, abundance 11.01%)
Could you please show the reaction in six steps with the curved arrow mechanism, show all the lone pairs,complete the structure of sulfuric acid or the hydrosulfate ion as necessary and complete each organic framework. Don't include the water.
A solar panel is used to heat water in a tank. How much heat energy is needed to raise the temperature of 1000 L of water from an initial temp of 23 degrees Celsius to a final temp of 65 degrees Celsius
10.0ml of 0.10M Pb(NO3)2 is mixed with 10.0ml NaCl. After equilibrium is attained, it is determined that the concentration of Cl- in solution is 0.0218M. Calculate the Ksp of PbCl2.
carbon dioxide is a green house gas that is linked to global warming. it is released into the atmosphere through the
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