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1. How many mL of 16 M NH3 are needed to prepare 2.00 L of a 2.00 M solution? 2. How much NaCl is present in 25.0 mL of a 12.0% (w/v) solution? 3.Consider the following four liquids: 1. water: highly polar; H-bonding 2. hexanol: slightly polar; some H-bonding 3. chloroform: slightly polar; no H-bonding 4. octane: non-polar; no H-bonding Which pair of liquids is immiscible? water and octane water and hexanol chloroform and octane hexanol and chloroform none of the above
Calculate the final temperature of 204 mL of water initially at 35 degrees C upon absorption of 18kJ of heat.
silver chloride can dissociate into Ag+ and Cl- species. This inhomogenous equilibrium has K=1.8x10^-10. What is the concentration of Ag+ in solution at equilibrium?
What proportion of benzoic of benzoic should be used with an equimolar mixture of adipic acid and hexamethylene diamine to produce a polymer of 10,000 molecular weigh at 99.5% conversion?
N2 + 3H2 --> 2NH3 what volume of hydrogen is necessary to react with five liters of nitrogen to produce ammonia?
When solutions of strong electrolytes are formed in water, the ions are surrounded by water molecules. These interactions may be described as
Problem 2.2 The temperature of 1.30 mol of an ideal gas increases from 10.4 celciusto 48 .8 celcius as the gas is compressed adiabatically. Part A Calculate q for this process, assuming that .C=3R/2 Express your answer to one significant figure an..
how many cans of Mountain Lightning would an individual have to drink to die from a tartrazine overdose If the LD50 of tartrazine in humans is supposed to be 12,750 mg/kg (as it is for mice) and the average human weighs 70 kilograms,?
Arrange the descriptions in order of increasing number of microstates in the resulting system.
A complex with the composition [MA2B2]X2 is found to have no geometrical isomers. Both A and B are monodentate ligands. The structure of the complex is
Determine the molality of a solution prepared by dissolving 0.500 moles of CaF2 in 11.5 moles H2O.
Calcium hydride reacts with water to form calcium hydroxide and hydrogen gas. How many grams of calcium hydride
Heat evolved per mole of Mg 6) Change in enthalpy for the following specific reaction. Be sure to indicate the correct sign (- or +) for the change in enthalpy. Mg(s) + 2H(aq)===>Mg(aq)+H2(g)
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