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At 40 C H2O2(aq) will decompose according to the followingreaction: 2H2O2 (aq) -----> 2H2O (l) + O2 (g) The following data were collected for the concentration ofH2O2 at various times: Time (s) H2O2 (mol/L) 0 1.000 2.16 x 104 0.500 4.32 x 104 0.250 a) calculate the average rate of decomposition of H2O2 between0 and 2.16 x 104 s. Use this rate to calculate the averagerate of production of O2 (g) over the same time period. b) what are these rates for the time period 2.16 x 104 s to4.32 x 104 s ?
how much heat is produced in burning 7 mol of rmc2 rmh2 under standard conditions if both reactants and products are
a solid cylinder 1m in diameter and 0.8m high is if uniform relative density 0.85 calculate the periodic time of small
Provide an explanation for the trend observed by comparing the basicity of the oxyanion bases. Include any additional structures necessary in your explanation! B ase % 1-Butene in Total Butenes Potassium p-nitrobenzoate 5.8 Potassium benzoate 7.2 ..
a mixture of potassium chloride and potassium bromide weighing 3.595 g was heated with chlorine which converted the
a premature infant is born. she weighs less than normal. her mother has been on a near starvation diet for the last month. the infant's blood glucose at birth and 5 hours later is very low. the problem may have been
find the temperature and the pressure of a gas inside the cylinder.1. a gas at 71degc occupies a volume of 0.67 l. at
Write a molecular equation for the precipitation reaction that occurs (if any) when the following solutions are mixed. If no reaction occurs, write NOREACTION.
An inventor claims to have developed a new perfume that lasts a long time because it doesn't evaporate. Comment on this claim. a) A perfume that does not evaporate could be toxic since the molecules never leave the skin.
Water expands on freezing. Since water is the principle ingredient in soft drinks when the soft drink freezes it will rupture the can.
What scientific principle or law is used in the process of balancing chemical equations. Define the terms limiting reactant and excess reactant.
Assume that you pipet twenty milliliters of 0.350 M CaCl2 into a fifty milliliter volumetric flask and add DI water to the calibration mark. What is the molarity of this diluted solution
Explain why it takes longer time when anyone cook an egg in boiling water while camping at in elevation of 0.5km in the mountain than it does it home.
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