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1. Under normal physiological assumptions, one human exhalation contains 5.1 x 10-2 g of carbon dioxide. Assuming 15 breaths per minute per person and a world population of 6.0 x 109 persons, what is the total amount of carbon dioxide released by human respiration in the courseof one year?
2. Glucose oxidation in the human body releases 6 mol of carbon dioxide per mole of glucose. How many moles of glucose are required to produce the amount of carbon dioxide?
3. Glucose oxidation has a standard enthalpy of -2803 kJ mol-1. What is the total heat produced by human respiration over the course of one year?
the equivalence point i know you need to use [A-]= moles of HA/(vol water added+vol NaOH added) and believe moles of HA=5.39x10^-3
one of the standard solutions had an abnormally low absorbace reading, causing a less positive slop for the data plot. a. Will the equilibrium concrentration of feNCS2+ in the test tube be too high or too low?
Consider a solution of carbonic acid, H2CO3. (a) Calculate the H3O+ ion concentration of a 0.15 M solution of carbonic acid.
Suppose 35.68 mL of 0.01015 M KMnO4 is required to titrate 3.576 g of a sample containing C2O42-. What percentage Oxalate is present in the sample?
Consider a case where methyl tertiary butyl ether (MBTE) is to be added to the conventional gasoline. What percentage of MBTE would be required to achieve the 2.7
How would you expect a titration curve of both the solutions and what will happen if HCl is added to the H 2 O and sodium acetate buffer ?
A diprotic acid, H2A, has the following ionization constants: Ka1 = 1.1 multiplied by 10-3 and Ka2 = 2.5 multiplied by 10-6. In order to make up a buffer solution of pH 5.80, which combination would you choose, NaHA/H2A or Na2A/NaHA?
The Eo values for the following two half-reactions are listed in an ancient standard reduction potential table as, respectively, 0.907 and 0.972 volts.
How much water would you add to 50.0mL of 0.400M NaOH if you wanted the final concentration to be 0.200M ?
If units were explicitly specified for Kp of the reaction above, they would be [atm]n. What would be the value of n for this reaction?
A student makes 215 mL of a 3.15M solution of Na2SO4. he then forgets to seal it and some water evaporates overnight. When he comes back int he morning, the volume of the solution is only 205 mL. What is the molarity of the solution after the wate..
600 mL of water is heated from 20c to 85 c to make a cup of tea. How much heat flows into the water? NOTE: density and specific heat capacity of water 1.00g/mL and 4.18J/(g.c) respectively.
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