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When backpacking in the wilderness, hikers often boil water to sterilize it for drinking. Suppose that you are planning a backpacking trip and will need to boil 31 of water for your group.
What volume of fuel should you bring? Assume each of the following: the fuel has an average formula of C7H16; 15% of the heat generated from combustion goes to heat the water (the rest is lost to the surroundings); the density of the fuel is 0.78 g/mL; the initial temperature of the water is 25.0 degrees C and the standard enthalpy of formation of C7H16 is -224.4 kJ/mol
calculate the molar concentration of a solution prepared by dissolving 5.4 g of sodium sulfate mw 142 in enough water
The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.50 mL of a 0.350 M HCL solution to the beaker. How much will the pH change? The pKa of acetic acid is 4.760.
To what volume should you dilute 54.0 mL of a 4.60 M KI solution so that 23.5 mL of the diluted solution contains 3.85 g of
Give the major product of the following reaction: 1-butene with Br2 in Low concentration? I have tried 3-bromo-1-butene
Determine the number of representative particles in each substance.
Determine the mass of sodium phosphate that yields 1.00 g of calcium phosphate precipitate.
Rutherford fired positively charged particles at metal foil and concluded that most of the mass of an atom was..a) in the electrons.
Looking at the colors of the mixtures containing 5.0, 6.7, and 7.5 mL of EN, would you conclude that you prepared one, two, or all three complex ions when you combined the various mixtures of 2.0 X 10-2 M CuSO4 and 2.0 X 10^-2 M EN
Draw a cooling curve for a sample of steam that cools from 110 degrees C to -10 degrees C. indicate the segments of the graph that correspond to each of the following: a)solid; b) freezing; c) liquid; d) condensing; e) gas.
Describe the biogeochemical cycles for H2O, C and N and describe how human activities have thrown them out of their natural balance.
Both potassium chloride (KCL) and potassium hydroxide (KOH) are very soluble in water. However, as one increases the temperature of the solution, KCL becomes more soluble and KOH becomes less soluble. Explain
To what volume must 558 mL of 13 M Ca(OH)2 solution be diluted to make a 3 M Ca(OH)2 solution?
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