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A 4.0 x 10-4 M solution of MnSO4 is gradually made more basic by adding NaOH. At what pH will manganese(II) hydroxide begin to precipitate? For Mn(OH)2, Ksp = 2.0 x 10-13.
A sports beverage company is seeking an energy supplement to increase the performance of the athletes. An ongoing research project suggest the use of a tetrasaccharide with the following characteristics
Calculate the amount of heat trasnferred when 3.55 g of Mg(s) reacts at constant pressure. 2Mg(s) + 02(g) ---> 2MgO(s) heat= -1204kJ
Draw resonanc contributors for the following species. Indicate which are major contributors and which are minor contributors to the resonance hybrid:
Question- What colors and pigments corresponds to the bands in TLC that can be seen visually in spinach extract
Calculate the amount of heat required to completely sublime 50.0g of dry ice (CO2) at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3kJ/mol.
So i have a phenol group with cholride attached to it. It is treated with ethlyamide and pyridine to form ph-c=o-ethlyamide. So i wonder what is the role of pyridine in the reaction ? i know it can act as a weak base and good nucleophile. please p..
A solution containing 0.2 g/mL of a pure R enantiomer in a 1 dm polarimeter rotataes plane polarized light by +3 degrees. What is the specific rotation of the R isomer. What will be the specific rotation of its S isomer
What is the pH of a solution containing 25 mL of 0.10 M acetic acid after 10 mL of 0.10 M NaOH is added
A sample containing 4.80 g O2 of gas has a volume of 15.0 L. Pressure and temperature remain constant. What is the new voume if 0.500 mole O2 gas is added.
1o ml of a gaseous hydrocarbon required 50 ml of oxygen for complete combustion. if 30 ml of co2 gas were evolved what
A solution containing a mixture of metal cations was treated with dilute HCl and no precipitate formed. Next, H2S was bubbled through the acidic solution
How many energetically different eclipsed conformations does 1-bromo-2-methylpropane, viewed along the C1- C2 bond, have
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