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Find the concentrations of the ions and of acetic acid in a 0.1 M solution of acetic acid at the body (pH of 7.4)
H3O+, CH3CO2-1, CH3CO2H.
Report the actual mass of H2O delivered to the flask. (Density of water = 1g/mL at 25°C.) (Poured 100mL of water in flask)
What are the normal freezing points and boiling points of the following solutions. (a) 19.2 g NaCl in 193 mL of water freezing point °C boiling point °C (b) 14.6 g of urea in 67.1 mL of water freezing point °C boiling point °C
A student found that her mixture was 15% NH4Cl, 20% NACL, and 75% SiO2. Assuming her calculations are correct, what did she most likely do incorrectly in her experiment?
calculate the weight of potassium chlorate required to prepare 380ml of wet oxygen collected over water at 20degrees
if you dilute 750.00 ml of a 4.117 times 10-4 m solution into a 2.00 l volumetric flask and fill to the line with water
A brown colored salt contains a cation from Group 3 (Fe, Mn, Ni). It has no reaction with concentrated H2SO4 and produces a soluble product with acidic AgNO3 and acidic BaCl2. This salt is not water soluble. What is the chemical formula for this s..
At 650K MgCO3(s)(----)MgO(s)+CO2(g) has Kp=0.026. A 10L container at 650K has 1.0 g of MgO(s) and CO2 at P=0.0260 atm. The containeer is than compressed to a volume of 0.100L. Find the mass of MgCO3 that is formed
If the barometric pressure is 784 torr and the experiment is carried out at 25 oC, what is the pressure of the gas collected?
A 29.0-g sample of water at 260. K is mixed with 51.0 g water at 310. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
In an attempt to determine the identity of the unknown metal in the orginal mixture you took 1.25 g of the pure metal your separation and determined its density by water displacemnt. If the density of the metal was 7.9 g/mL, what us the volume of ..
What was his wavelength at his average speed, if he weighed 207 lbs at the time of the race?
Differentiation between cis and tran isomers when it comes to cyclohexane. drawing the chair confermation and understanding "up"
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