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Hydrogen peroxide, H2O2, is used as a disinfectant to treat minor cuts or scrapes. The label claims this solution is 3.0 % (w/w); that is there are 3.0 grams of H2O2 in every 100 grams of solution. What is the molar concentration of this solution? (Assume a density of 1.00 g mL
What IR stretches (and ranges) will occur in? What IR stretches (and ranges) will occur in an aldehyde, but not an alcohol or ketone and IR stretches (and ranges)
A 12-oz (355-mL) Pepsi contains 38.9 mg caffeine (molar mass ?? 194.2 g/mol). Assume that the Pepsi, mainly water, has a density of 1.01 g/mL.
Give the formula of the compound formed from the following elements. (Type your answer using the format CO2 for CO2.) (a) sulfur and cesium (b) sulfur and barium (c) rubidium and bromine
A student sets up two reactions. Reaction 1 uses 0.170 mole/L of reactant, and Reaction 2 uses 0.460 mole/L of reactant. How many times faster is Reaction 2 compared to Reaction 1
A researcher suspects that the pressure gauge on a 49.9-L gas cylinder containing nitric oxide is broken. An empty gas cylinder weighs 135 lb. The weight of the partially full cylinder is 161.5 lb. This cylinder is located in a relatively chilly s..
monoprotic acid. Dihydrogen pthalate (H2C8H4O4) is a diprotic acid. An analyte sample contains 0.127 M KHP and 0.0678 M (H2C8H4O4). What volume of a 0.205 M NaOH solution is required to neutralize 25.0 mL of the analyte solution.
An electron traveling at 3.7 X 10^5 m/sec has an uncertainty in its velocity of 1.88 X 10^5 m/s. What is the uncertainty in its position?
Identify the following compound from its IR and proton NMR spectra. C6H10O: NMR: ? 3.31 (3H, s); ? 2.41 (1H, s); ? 1.43 (6H, s) IR: 2110, 3300 cm-1 (sharp)
A 325 mL sample of solution contains 25.3 grams of CaCl2. Calculate the molar concentration of Cl- in this solution.
Methane and hydrogen sulfide form when 36g H2 reacts with carbon disulfide. calculate the percent yield if the actual yield of CH4 is 69.8 g
In the information of smog, nitrogen and oxygen gas react to form nitrogen dioxide. How many grams of NO2 will be produced when 2.0 L of nitrogen at 840 mmHg and 24 degrees C are completely reacted
A 2.154 g sample of HgO produces 125 mL of oxygen gas. The gas is collected over water at 24 C and an atmospheric pressure of 763 torr.
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