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Problem- How many liters of oxygen gas can be produced at STP from the decomposition of 0.250L of 3.0 M H2o2 in the reaction according to the chemical equation shown below?
2 H2O2(l) --> 2H2O (l) + O2(g)
I want you to clarify the chemistry in this above problem.
a 70g piece of ice at 0c is added to a sample of water at 8c, all of the ice melts and the temp of the water decreases to 0c, how many grams of water were in the sample?
Calculate the quantity of energy produced per mole of -235 (atomic mass = 235.043922 ) for the neutron-induced fission of -235 to produce -137 (atomic mass = 136.9253 ) and -97 (atomic mass = 96.910950 ). E= J/mol U235
The average C--H bond energy is 415 kJ/mol. Use the following data to calculate the average C--H bond energy in ethane (C2H6; C--C bond), in ethene (C2H4; C=C bond), and in ethyne (C2H2; C--C triple bond).
When a glow stick is placed in a freezer, its chemiluminescence lasts a significant time longer. How might this come about?
a tanker truck carrying 2.01times103 of concentrated sulfuric acid solution tips over and spills its load. the sulfuric
If 110mg of fluorine-18, which has a half-life of 110min, is shipped at 8:00 a.m., how many milligrams of the radioisotope are still active if the sample arrives at the radiology laboratory at 1:30 p.m.?
The enzyme, phosphogucomutase, catalyzes the interconversion of glucose 1-phosphate and glucose 6-phosphate. If at chemical equilibrium at 25 degrees celcius, 95% glucose 6-phospate is present, calculate
Consider the titration of 30.0 mL of 0.035 M NH3 with 0.025 M HCl. Calculate the pH after the following volumes of titrant have been added.
what is the ph when 0.005 moles of hcl is added to 0.100l of a buffer solution that is 0.100m in ch3co2h and 0.100m
A 0.484g sample of impure NH4Br is treated with 25.00 mL of 0.2050 M NaOH and heated to drive off NH3. The unreached NaOH in the reaction mixture after heating required 9.95 mL of 0.0525 M H2C2O4 to neutralize.
Based on the cation/anion radius ratio, what coordination number is expected for Zinc Sulfide
The Balmer series of transitions for the hydrogen atom result in absorption of photons that all originate from the n = 2 level. What are the longest and shortest wavelength photons in the Balmer sequence?
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