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State a balanced chemical equation, with integer coefficients, for the reaction that can take place when aluminum metal is added to a solution of tin(II) ions.In both the reactants as well as products,
the density of phosphorus vapour at 310 degrees celcius and 75 mmHg is 2.64 g/L. What is the molecular formula of the phosphorous under these conditions?
A sample of neon gas used in a neon sign occupies a volume of 1.50 L at a pressure of 630 torr. Calculate the volume of the gas if the pressure in the glass tube of the sign is 793 torr.
If the 4.00g sample corresponds to 0.0666 moles of a compound, what is the molecular formula of the unknown molecule (CxHyOz)
potassium chromate k2cro4 is manufactured in a process in which 1.25 kgs of a solution that is 33.3wt k2cro4 in the
The final temperature of the the calorimeter is 24.0 C. What is the specific heat capacity of unknown metal? The specific heat capacity of water is 4.184 J g^-1 C^-1
what is the theoretical (or calculated) yield of NH4 Al (SO4)2 * 12 H2O formed from 1.872 g of Al(OH)3?Assume all other reagents are in excess
A sample of gas occupies 1.40*10^3 ml at 25 degrees C and 760 mmHg. What volume will it occupy at the same temperature and 380 mmHg
What is the mechanism of addition of chlorine to ethene. Sustitution of chlorine in benzene
To find the pKa of X-281, you prepare a 0.075 M test solution of X-281. The pH of the solution is determined to be 3.00. What is the of X-281.
How many grams of Neomycin sulfate should be added to 320 g of 5% neomycin sulfate ointment to prepare an ointment containing 20% neomycin sulfate
a certain balloon will pop if it expands to a volume greater than 16.0l. the balloon is currently filled with air at a
write the net ionic equations for the precipitation reaction or reactions that occur. b) what are the spectator ions in the solution?
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