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If you titrate 1.0 g of H2O2 solution (30wt%) with KMnO4, 25.05 ml of this KMnO4 solution is used. What is the molarity of KMnO4? (H2O2-34.01) ; 2MnO4- + 5 H2O2 + 6H+ = 2Mn2+ + 5O2 + 8 H2O
Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb 6.10 MJ of energy (in the form of heat)
A 7.0 liter balloon at room temperature (22 degrees celsius) contains hydrogen gas. If the balloon is carried outside to where the temperature is -3.0 degrees Celsius.
Determine the molecular formula of a compound which has a empirical formula of CH3 and a molar mass of 60.0 g/mol.
What are the atomic orbitals used in the double part of the double bond If the C-C axis of the given molecule is the y axis, and the x axis is up and down in the plane of the paper,?
A cylindrical glass tube 15.0 cm in liength is filled with ethanol. The mass of ethanol needed to fill the tube is found to be 9.64g.
63.0 mL of a 1.20 M solution is diluted to a volume of 208 mL. A 104-mL portion of that solution is diluted using 157 mL of water. What is the final concentration.
Wavelength of light required to break C-C, C-Cl, O=O bonds - Calculate the frequency and wavelength of the least energetic photon that can break an average C-C bond. In what region of the electromagnetic spectrum is this radiation?
A sample of vinegar has a freezing point depression of 2.0 degrees C. What is the estimated percent by mass of acetic acid in the vinegar? Molar mass of acetic acid is 60g/mol
Write down the balanced chemical equation when Fe 3 O 4 reacted with carbon monoxide and calculate mass of carbon dioxide that will be produced in this reaction if 234 g carbon monoxide is reacted with excess Fe 3 O 4 ?
A 0.50 mol/L solution of codeine has a pOH of 3.05. What is the Kb value of codeine?
The volume of a gas sample is 200L at 740 torr. what is its volume at 760 torr? Assume that the Temperature remains constant
how many liters of O2 can be made from 342 g H2O2 if the density of O2 is 1.428 g/L?
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