Calculate the theoretical yield of h2s in moles
Calculate the theoretical yield of H2S in moles if the 4.0 molAl2S3 and 4.0 mol H2O are reacted according to the following balanced reaction when a possibly useful molar mass is Al2S3 =150.17 Al2S3(s)+6H2O(l)-->2Al(OH)3(s)+3H2S(g)
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From production line of manufatoring process 400 items are inspected after random selection. It was found that 28 of the items were defective. It is assumed that 10% of the items are defective.
A 25.0 L container initially contains the oxygen gas which is having a partial pressure of 0.711 atm at the160 degrees C, plus 0.397 g of hydrogen gas.
The molar heats of vaporization and fusion of a certain substance are 7.31 kJ/mol and 3.63 kJ/mol and the melting points and boiling points are -161 degrees Celsius and -115 degrees Celsius respectively. Describe the entropy changes for v
Describe the wavelength and frequency of the radiation involved in the least energetic emission line in the Lyman series? Determine what quantum levels are involved in the emission line? Estimate the values of ninitial and nfinal?
You drop the ball from top of the building which is 144 feet high. If ball bounces back to 2/3 of height is falls each time. How many feet will ball have travelled after ten bounces?
A pair of fair dice is cast. Determine the probabiliy which one of the numbers falling uppermost is a 5, given that two numbers falling uppermost are different?
Estimate the value of pH? Determine the numbers of grams of KOH must be added to 0.500 L of the buffer to change the pH by the 0.15 units?
Estimate the number of grams of Aluminum formed in one hour by the electrolysis of molten AlCl3 if the electrical current is 10.0 A. (A=amps=C/s)
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