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Five standar solutions of HBr are prepared by serials dilutions in which at each stage 10.00 mL are diluted to 160.00 mL. Given that the concentration of the most dilute solution is 2.57*10 =(-6) M. Determine the concentration of the original HBr stock solution
A solution contains 410.3 g of H2SO4 per litre of solution . If the density is 1.243 g/ml, what will be its molarity and molality.
A solution is prepared by dissolving 159 g sucrose (C12H22O11) in enough water to produce 1.40 L solution. What is the molarity of this solution?
when using a rotary evaporator, the water bath is typically kept at a temperature below the normal boiling point of the solvent to be evaporated
Phosphorus is combined with chlorine to give PClz a gaseous compound .calculate the value of z If you start with 2.097g of P and isolate 9.298g of PCLz .
Write and ionic equation to show what happens when we add small quantities of H+ ions to a buffer solution that contains equimolar amounts
what is the percent Zn in the mixture? (At the same temperature and pressure, the Mg/HCl reaction gave 24.2 L gas/mol Mg.)
a sample of argon gas is at a pressure of 1.24x10^4 kpa and a temperature of 24c in a rigid 25-L tank. How many moles of argon does this tank contain?
Calculate the mole fraction of ethylene glycol in the solution.
description of the mechanism of this reaction? tertiary carbanion, 2-methylpentoxonium ion, sp hybridized pentyne, vicinal dihydroxide, or hydroxide ion.
Synthesis of Nylon: Relative Reactivities of Acid Chloride, Acid Chlorides are known to be reactive towards water, however successful polymer preparation can be made with 5% aqueous
How many moles of HIO3 are produced when 1.29 grams of ICl3 and 7.81 grams of H2O react
Calculate how much heat is released when 4.5 g of methane is burned in a constant pressure system. (CH4(g) + 2 O2(g> --> CO2(g) + H2O (l) ,delta H = -890 kJ.
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