How can determine the numbers of mg of c and h
How can determine the numbers of mg of C,H,O is present in the original sample Y. The combination of 20.63 mg of compound Y, which is having only the C, H, O, with excess oxygen gave 11.85 mg of H2O and 57.94 mg of CO2.
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What annual interest rate on the certificate of deposit compounded monthly would yield the equivalent return? Use A=P(1+ r/n)^(nt).
Determine the volume of CO2 at 16.5°C and 746 mm Hg pressure obtained by treating 32.6 g of Na2CO3 with an excess of hydrochloric acid.
A student added 5.38g of Al(OH)3 to a beaker which is having the 250.0 ml of a 1.00M HCl solution , stirred it, and observed that the solid dissolved totally.
To form the aluminum sulfide the elemental aluminum reacts with the elemental sulfur. When this compound is mixed with the water, a white precipitate and a foul-smelling gas are produced.
Assume that you were to warp the piece of string around equator of Earth. How much extra string would you require if you wanted string one foot off Earth all way around? Suppose earth is perfect circle.
Calculate the crystal field splitting energy for this ion in the kJ/mol when a chemist claims to have found a complex ion where the most intensely absorbed light is 337.0 nm.
Determine the numbers of unpaired electrons are in the d-orbital splitting diagram for an octahedral complex ion of the Fe2+ in the low spin case
Determine the numbers of hours will it take to form the 46.0 kg of Al metal by the reduction of Al3+ in an electrolytic cell using a current of 347 amps?
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Its key advantage is high internal validity; its disadvantage is that randomization is often ethically or practically impossible.
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