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The label of an antacid tablet bottle states that each tabletcontains 480 mg of CaCO3. A tablet weighs 1.40 g. What weight of the tablet will be required to use 20mL of0.050 M EDTA solution?
What weight of solid glycine pk1=2.4, and pk2=9.6 and what volume of 1.0 M HCl are required to make 100ml of .3 M buffer ph 2.4. please descrribe each step you do in DETAIL so i can understand process and use correct units please
when 24 copper pennies are submerged in water the pennies displace 8.26 cm3 of water. if the combined mass of the
Some water was added to the initial reaction mixture in the procedure you performed. a. How might the yield of 1-bromobutane be affected if the water were not added, and what product(s) would be favored
What is the molar mass of the gas in a glass bulb with a volume of 2.50 L at a temperature of 22 degrees C and a pressure of 110 mm Hg. The gas weighed 505 mg.
Determine the molarity of a solution formed by dissolving 468 mg of MgI2 in enough water to yield
The speed of sound in air is 344 m/s at room temperature. The lowest frequency of a large organ pipe is 30 s^-1 and the highest frequency of a piccolo is 1.5*10^4 s^-1
Carboxylic acids and phenols can be separated by chemically active extraction if the pH of the aqueous layer is properly chosen. Phenols are sufficiently acidic to be extracted into aqueous sodium hydroxide
What unknown compound will result in a positive reaction to bromine only by UV light and will this compound have a negative reaction to KMnO4?
A buffer solution is prepared by mixing 0.500 L of 1.50 M HF and 0.400 L of 0.95M KF. What is the pH of this buffer? [Ka(HF) = 6.30 × 10-4]
gas evolution frequency is observed during the seperatory funnel extractions in this experiment. What is the identity of this gas and how is it formed?
Calculate what the limiting reactant is in the reaction between copper (II) oxide and hydrochloric acid
Assume the van der Waals equation of state holds for the n-propane molecule (C3H8). Find values for the constants a and b (online) and use these to calculate the density in (g ml^-1) at a temperature of 1000K and a pressure of 10 atm
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