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You have 40.00 mL of an aqueous solution containing two analytes, 0.400 M hydroxylamine (HONH2) and 0.15 M sodium hydroxide, are titrated by 0.100 M HCL (the titrant). For each volume of titrant calculate the pH. volumes (all in mL) include 0, 30.00, 60.00, 120.0, 180.0, 220.0, and 250.0.
Draw a valence bond structure for the BH3-THF complex showing formal charges
the heat of solution of ammonium chloride is 15.2 kjmol. if a 6.134 g sample of nh4cl is added to 65.0 ml of water in a
what affect would each of the following changes in procedure have had on the calculated percentage of fat found for
For a particular redox reaction MnO2 is oxidized to MnO4- and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in basic solution. Phases are optional.
Heptane (C7H16) and octane (C8H18) are constituents of gasoline. At 80.0 ?C, the vapor pressure of heptane is 428 mmHg and the vapor pressure of octane is 175 mmHg.
You have a 1.0 mL sample of unknown concentration that requires 8.0 mL of titrant to change the color of the solution. How many mg of ascorbic acid are in your unknown sample
For the reaction: N2(g) + 2 O2(g) ?? 2 NO2(g), Kc = 8.3 × 10-10 at 25°C. What is the concentration of N2 gas at equilibrium when the concentration of NO2 is twice the concentration of O2 gas
assuming no heat loss, and that the specific heat (capacity) of water is 4.184 J/g*K, what is the heat capacity of the copper in J/K?
How many moles of cobalt (Co) atoms are there in 5.00 x 10^9 (5.00 billion) Co atoms? Enter your answer in scientific notation.
Rearrange the variables in the combined gas law to give an expression for the following: a) T2; b) P2.
In the lower atmosphere, oxygen gas is converted to ozone gas by energy provided from lightening as shown in the reaction below and the value of the equilibrium constant for this reaction at 25C is Kc = 1.7 x 10^-56.Equation
You wish to extract an organic compound from an aqueous phase into an organic layer (3 to 6 extractions with a separatory funnel). With regard to minimizing the number of transfer steps,
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