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If 0.56g KI is utilized to decompose 6.0mL of 3.0% H2O2 solution what mass of KI will be present after all the H2O2 decomposes
a 25.00-ml sample of propionic acid ch3ch2cooh of unknown concentration was titrated with 0.104 m koh. the equivalence
Exothermic Reaction. Chemical process in which system evolves resulting in heat transfer to the surroundings. Endothermic Reaction: Chemical process in which system evolves resulting in heat transfer to the system. A. Burning wood in a campfire.
the limiting current of lead in an unknown solutions is 5.60mua. one ml of a 1.00 x 10-3m lead solution is added to
The minimum frequency of light required to eject electrons from a metal is called the threshold frequency? Determine the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.55 × 1014 s-1.
Explain why can you conclude that the energy of an antibonding MO in (H2) + is elevate more than the energy of the bonding MO is lowered
Make a scheme to separate Sr2+ , K+ , and Ag+ cations in solution as well as define a flow chart that depicts your scheme.
Explain which element has higher ionization energy, Be or B. Start by comparing thier energy level diagram?
What is the difference between a "single beam" and a "double beam" instrument. What are some advantages and disadvantages for each of these instrument designs
The following reactions occur at 500 K. Arrange them in order of increasing tendency to proceed to completion (least ? greatest tendency). 1. 2NOCl 2NO + Cl2 Kp
The calorimeter contains exactly 341 g of water, and the temperature increases by 1.126°C. Calculate the heat given off by the burning Mg, in kJ/g and in kJ/mol.
How much commercial fresh concentrated H2SO4 solution (in mL) would you have to add to 100mL of distilled water to make a 1.5N solution
11 g of sodium bromide NaBr is mixed with 9 g of butanol CH3CH2CH2CH2OH to yield 258 mg of bromobutane CH3CH2CH2CH2Br. Under the catalysis of 10 ml of sulfuric acid density 1.84g/ml.
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