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Approximate the percent increase in waist size when a 155 lbs person gains 40 lbs of fat. Assume the volume of a person can be modeled by a cylinder that is 4 ft tall. The average denisty of a human is 1g/cm3 and the average density of fat is .918 g/cm3.
An electron traveling at the velocity of 3.7 105 m/sec has an uncertainty in its velocity of 2.34 105 m/s. determine the uncertainty in its position?
determine the minimum length of a surface crack that will lead to fracture. Assume a value of 0.96 for Y.
Suppose we want a soln containing 150 micrograms of the protein at a concentration of .5 mg/ml. To do this we will first evaporate the liquid from enough of the protein soln to get 150 micrograms. How much coln do we need to start with? How much H..
If you add 0.35 g NaF to 150 mL of a 0.30 M HF, what is the pH of the resulting solution?
When two atoms form a covalently-bonded diatomic molecule, the distance between the nuclei at which the potential energy is at a minimum is called
The mass of a cube of iron is 284 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?
Arrange the following solutions by increasing chloride ion molarity. 1 M NaCl, 1 M FeCl3, 5 M NaCl, 1 M CaCl2, 2 M FeCl3, 2 M CaCl2
Question about Thermochemistry, Consider the reaction: H2(g) + Cl2(g) yields 2HCl(g) Change Heat = -184.6
Calculate the heat released (in kilojoules) per gram of the compound reacted with oxygen. The standard enthalpy of formation of benzene is 49.04 kJ/mol.
What substance (element on the periodic table) resides at the heart of the structure of vitamin B12? 2 points
Order the following elements according to decreasing electronegativity: C, Ca, Cs, Cl, Cu.
Calculate the molarity of a solution made by dissolving 0.650 Na2SO4 grams of in enough water to form exactly 950 mL of solution.
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