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What is the half-life of a compound if 76 percent of a given sample of the compound decomposes in 43 min? Assume first-order kinetics.
Given the following reaction: 4 KO2 + 2 H2O + 4 CO2 ==> 4 KHCO3 + 3 O2 How many moles of O2 will be produced if 3.12 moles of CO2 react completely?
An analyst was attempting to determine the percent KHP in an unknown sample. The analyst found the molarity of the standardized NaOH solution to be 0.1022 mol/L.
what is the concentration of glyceraldehyde-3-phosphate? Assume a temperature of 25.0 °C. The constant R = 8.3145 J/(mol·K)
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.
hydrogen cyanide is produced industrially from the reaction of gaseous ammonia oxygen and methane 2nh3 g 3o2g 2ch3g
Identify the oxidizing agent and the reducing agent for rm Ba(s) + Cl_2(g) to BaCl_2(s)?
when 0.625 g of ca metal is added to 200.0 ml of 0.500 m hclaq a temperature increase of 102c is observed. assume the
If a bottle of nail polish remover contains 177 ml of acetone, how much heat would be released by its complete combustion? The density of acetone is .788 g/ml
What is the percent ionization of a solution prepared by dissolving 0.0223 mol of chloroacetic acid, HC2H2O2Cl) in 1.80 L of water? For chloroacetic acid, Ka = 1.4 ? 10-3.
Consider the cell described below: Al/Al3+ (1.00M)//Pb2+ (1.00M)/Pb Calculate the cell potential after the reaction has operated long enough for the [Al3+] to have changed by .60 mol/L. Assume T=25 C
A compound is 40% C 6.70% H and 53.3% O by mass. the molecular formula of this compound is 60 amu, what are the subscripts of C, H, O
What is the pH of a buffer solution that is 0.255 M in hypochlorous acid (HClO) and 0.333 M in sodium hypochlorite? The Kb of hypochlorous acid is 2.63 x 10 ^-7. ( Use ICE and please show work)
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