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Complete the following table for aqueous solutions of potassium hydroxide. a. given: density (g/mL):1.05 molarity:1.13 find molality and mass percent of solute b. given: density (g/mL):1.29 Mass percent of solute:30 find molarity and molality c.given: density (g/mL):1.43 molality:14.2 find:molarity and mass percent of solute
Multiple choice questions in nuclear chemistry - which equation represents the balanced nuclear equation
A mixture of 2.00 moles of H2, 3.00 moles of MH3, 4.00 moles of CO2, and 5.00 moles of N2 exert a total pressure of 350kPa. What is the partial pressure of each gas?
What is the concentration for each substance at equilibrium for the following gaseous reaction if the initial concentration of ethene,
Ethylene does not polymerize at ordinary pressures under conventional free radical processes. Why is this
the water level in a graduated cylinder initially at 224 rises to 287 after a piece of lead is submerged. what is the
Give the orbital designation (1s, 2p, 3d, etc) of electrons with the following combination of principal and azimuthal quantum numbers.
The solubility of BaSO_4 is 2.4*10^-3 g/L at room temperature. What is the value of K_sp for BaSO_4 at this temperature?
The syringe used in this experiment is calibrated to 60 mL. However, there is a 'dead volume' at the needle end of the syringe that is uncalibrated. This volume equals 1.20 mL. Bearing in mind that the syringe is upside down
Again, are all of the (non-zero) formal charges consistent with the relative EN's of the atoms? Are the structures reasonable?
How many mL of 0.100 M NaOH is required to react with 50.0 mL of 0.100 M H2SO4 according to the reaction 2NaOH + H2SO4 --> 2H2O + Na2SO4
The ion is stabilized due to the delocalization of the positive charge to the aromatic ring. Draw resonance structures that indicate the stability of this ion.
The temperature of a lead fishing weight rises from 15 oC to 45 oC as it absorbs 22.5 kJ of heat. What is the mass of the fishing weight in grams? Heat capacity of lead is 0.128 J/g oC.
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