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The concentration of SO42- (aq) in a sample of river water can be determined using a precipitation titration in which a salt of Ba+ (aq) is the standard solution and BaSO4 (s) is the precipitate formed. What is the concentration of SO42- (aq) in a 53.5 mL sample if 6.05 mL of a 0.00100 M Ba2+ (aq) solution is needed to precipitate all the SO42- (aq) in the sample?
The partial pressure of the H2 is 1.9 atm, and the partial pressure of the Ne is 3.4 atm. What is the mole fraction of H2?
Draw the structures and then List the following alkyl halides in order of their increasing reactivity as substrates in SN2 reactions
What is the density of a block of marble that occupies 253 cm and has a mass of 752 g? Answer in units of g/cm
how many moles of each of the following strong electrolytes are needed to give the same freezing point lowering as 3.0 mol of the nonelectrolyte ethylene glycol in 1 kg of water? a)CH3-OH, a nonelectrolyte. b)KNO3
Explain, phenomena in terms of atomic structure and behavior. When you lightly bump into a car, why does it dent and not create a hole.
Muriatic acid is a HCl solutin available in hardware stores. A 3.00-ml sample of muriatic acid required 15.44 ml of 2.04 M NaOH for complete neutralization
what will be the final temperature. The specific heats of ice and water are 2.09 and 4.184 J/g.°C, respectively. The heat of fusion for water is 334 J/g.
When too much H2CO3 is in the blood, the enzyme carbonic anhydrase catalyzes the conversion of carbonic acid, H2CO3, to carbon dioxide, CO2, and water, H2O.
How many moles of ammonia will be required to produce 11.5 mol of water?
A solution made by adding 105g of NaCl to 1 kg of water freezes at 20 degrees F (-6.7 degrees Celsius). Calculate the mass of CaCl2 that would lead to the same freezing point depression
Kp for this reaction is 5.1 x 10-2 atm-1. Initially, 1.00 g each of SO2 and Cl2 are placed in a 1.00 L reaction vessel. After 15 minutes, the concentration of SO2Cl2 is 45.5 μg/mL.
The splitting pattern of interest contains a quartet at 4.06 ppm and a triplet at 1.24 ppm. What common alkyl group is responsible for this splitting pattern
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