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Over the course of a month, a family used 100 gallons of hot water per day. What is this families monthly expenses for water heating? For this problem assume that a month has 30 days, the price of electricity is $0.06 per kwhr, the heat capacity of water is 4.18 J/C*gram, that the water is heated from 20 to 70 C and that the water heater is 100% efficient. You can use the conversion factor from the problem above and you may need to look up other conversion factors.
A. $9.50B. $22.06C. $39.71D. $158.33E. $661.83
In the electron transport chain, electrons from FADH2 are eventually used to reduce O2 into H2O. Experimentally, the proton motive force created by this process will generate 2 ATP molecules from ADP and Pi, using ATP synthase.
A sodium hydroxide solution is prepared by dissolving 4.0 g NaOH in 1.00 L of solution. What is the molar concentration of OH- in this solution? What are the pOH and the pH of the solution?
a 1.90 g sample of a large boimolecule was dissolved in 11.0 g of carbon tetrachloride. the boiling point of this
consider the following equilibrium process at 686degcco2g h2gnbspnbspcog h2ogthe equilibrium concentrations of the
Calculate the concentration of Iron(II) ions in a solution that contains 0.10M Fe(NO3)2 and 1.00M NaCN.
The graph above shows the heating curve of wate
0.01m hcl reacts with 3.18 g na2co3. here 50 ml of hcl is required for the reaction. calculate the volume of co2
If a cell is in a resting state, which of the following is NOT true: a. cell needs little energy b. high ATP, low ADP levels
It gave a mixture of MgO and ZnO that had a mass of 1.409g. What mass of An was there in the original mixture?
There is a one to one relationship between the number of moles of hydrogen gas evolved and the moles of Magnesium metal consumed in the reaction, therefore moles of H2 evolved = moles Mg consumed and the atomic weight of Mg = weight of Mg consumed..
What is the final concentration (in M) of 19.5 mL potassium hydroxide solution with an initial concentration of 1.85 M which is diluted with 16.8 mL of solvent? Assume the volumes are additive.
What mass of HClO4 should be present in 0.600 L of solution to obtain a solution with a pH of 2.50?
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