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Find out the magnesium content (in ppm) of a 100.00 mL sample of drinking water if the subsequent data were obtained. Titrant is 0.0863 M EDTA, 13.13mL were utilized when an aliquot of the sample was at pH 13.0, 16.64mL were utilized for an aliquot at pH 10.5.
What is the smallest amount of CuO (in moles) that would establish the equilibrium?
A mixture of three gases has a total pressure of 1,380 mmHg at 298 K. The mixture is analyzed and is found to contain 1.27 mol CO2, 3.04 mol CO, and 1.50 mol Ar. What is the partial pressure of Ar
Methane can be decomposed into two simpler substances, hydrogen and carbon. Therefore, methane
What mass of carbon dioxide can 1.00 kg of lithium hydroxide absorb?
if 2.3g of sodium reacted with 1.8 of water what would be the total mass of sodium hydroxide and hydrogen
an ideal gas at 16.2 degc and a pressure of 2.56 x 105 pa occupies a volume of 2.56 m3. a how many moles of gas are
Which of the following are molecular solids and which are covalent solids. SO2, I2, P4, S8, H2O, SiO2
Calculate the concentration of ALL species in a 0.25 M solution of ethylammonium chloride (EtNH4Cl). The Kb value for the weak base ethylamine (EtNH2) is 5.6 x 10
Calculate the amount of heat in kj required to convert 157.7g of water to steam at 100 dgree.
the total pressure of a mixture of oxygen and hydrogen is 1.4 bar. the mixture is ignited and the water removed. the
How are the nf and ni values calculated for a Hydrogen Gas Discharge Tube's visible emission spectra
sr-90 has a half-life of 29.1 years. how long will it take for the activity of a sr-90 sample to decay from 6.5x103
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