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A water sample contains 204 mg of CaSO4 per liter. Calculate the hardness in terms of CaCO3 equivalents
How many moles of chloride were present in the unknown. d. What mass of cholride was present in the unknown? e. What was the mass percentage of cholride present int the original sample
Problem- if a solution contain a mixture of Ba^2 and Ag^+ ions, write a short experimental procedure that would allow the two ions to be separated and includes a confirmatory test for verifying the presence of each ion.
Chemical Structure and Hydrogen Bonds in Base Pairs, Draw the chemical structure of a correctly base paired G-C pair, then re-draw the pair with a propeller twist these answers should all be on one page following box 'G'
What is the density of the unknown liquid
assuming an Sn2 reaction mechanism, predict the major organic product(s) of (s)-3,3-dimethyl-2-butanol when reacted with HCl.
Lysine is used as a topical medicinal skin creme. What is the molecular formula of lysine if the empirical formula is C3H7NO, and the approximate molar mass is 146 g/mol
Calculate the weight of water that could be removed from a wet organic phase using 50.0mg of magnesium sulfate. The hydrate form of magnesium sulfate consists of MgSO4
Question- Determine the electron geometry, molecular geometry, and idealized bond angles for each of the following molecules.
Every measurement has a measurement uncertainty. Discuss how precise and accurate measurement can be achieved in spite of the inherent measurement uncertainty. You could use either of the two options given below.
Determine the heats of formation or the steric energies of the exo-and endo-anhydride adducts using a molecular mechanics program. What do these energies tell you about the mechanism of the reaction
When square brackets are placed around the formula for a substance, such as [NaOH], it indicates that we are working with the percent-by-mass
It is given given that pure acetic acid, known as glacial acetic acid, is a liquid with a density of 1.049 g/mL at 25 degrees C. Calculate the molarity of a solution of acetic acid made by dissolving 29.00 mL of glacial acetic acid
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