Determine the percent active ingredient in antacid sample
1. Calculate the mass of CaCO3 in the sample, assuming the active ingredient in the antacid sample is CaCO3.
2. Determine the percent active ingredient in the antacid sample?
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Determine what kinds of intermolecular attractive forces (dipole - dipole, London, hydrogen bonding ) are present in the following substances:
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Calculate how many grams of calcium were added to the water? What is the molality of the resulting calcium hydroxide solution when an unknown mass of calcium metal is placed in 200g of water, 103mL of hydrogen gas is collected at the 295 C and 72
Assume that past history describe that 60% of students prefer Brand C cola. A sample of 5 students is chosen. Determine the probability that at least three of the five students chosen will prefer brand C?
Calculate the mass of CaCO3 in the sample, assuming the active ingredient in the antacid sample is CaCO3. Determine the percent active ingredient in the antacid sample?
The hydrochloric acid that is not neutralized by the antacid is titrated to a bromophenol blue endpoint with 6.22mL of 0.0827M NaOH when a 0.196-g sample of a CO32- antacid is dissolved with the 25.0mL of 0.0946M HCl.
The quality control manager for ENTA Inc. should make decision whether to accept (a1), further examine (a2) or reject (a3) lot of incoming material.
If 10.0mL of 0.100 M NaOH titrate is to be used to back titrate the excess 0.100 M HCl from the analysis of one-third of a Maalox tablet, determine the numbers of milliliters of 0.100 M HCl must have been initially added to the
In the benzyl synthesis the reaction mixture cools to 50-60degrees C before addition to water. The temperature does not need to be exact. Discuss how can you tell without using thermometer that the temperature of the mixture is approximately 50- 6
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