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A certain compound is made up barium and one of the halogens. A 0.158 grams sample of this compound was dissolved in water, as well as an excess of sulfuric acid was added to form barium sulfate what is the mass of barium sulfate that was found to be0.124 grams as well as what is the formula of the original barium compound?
A 200 ml sample of 0.200 M HBr solution is titrated with 0.2 M NaOH. Calculate the pH of the solution after 19.9 ml of NaOH have been added.
If a 1.55- reaction vessel initially contains 181 of water at 700.0 in contact with excess solid carbon, find the percent by mass of hydrogen gas of the gaseous reaction mixture at equilibrium.
the rate of a chemical reaction increased by a factor of 3.58 when the temp increased from from 35c to 48c. if the
the oxidation of copper 1 oxide cu2o s to copper 2 oxide cuo s is an exothermic process2cu2o s o2 g -gt 4cuo s deltah
If you have a white powder that could be either Epsom salt or table salt, how could you decide which one it is
Consider the titration of a 25.0 mL sample of .125M RbOH with .105M HCl. Find the initial pH.
if a 2.743g sample of MgSO4 7H2O were heated strongly, what would be the expected mass of the cooled dehydrated salt? (use M=246.471g mol-1 as the molar mass of MgSO4 7H2O.
Approximately 35 mg of a dried brass sample (accurately measured) is put into a 250-mL Erlenmeyer flask. About 20 mL of H2O and 10 mL of concentrated HNO3 is added.
A 325 mL sample of solution contains 25.3 grams of CaCl2. Calculate the molar concentration of Cl- in this solution.
Determine the theoretical volume of NaOH it should take to neutralize the sulfuric acid in the equilibrium reaction mixture.
The electron configuration of carbon atom 1s^2 2s^2 2p^2. which of the following term symbols may not exist (^3S1 or ^1S0) explain
a certain protein was found to contain 0.639% zinc by mass. Determine the minimum molecular mass of the protein.
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