Determine the density of a single gold atom
Assume that a gold atom is shaped like a sphere. An atom of gold has a radius of 156 pm and a mass of 197 amu. Determine the density of a single gold atom in units of g/cm3. (1 amu = 1.66 x 10-24g)
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what is the freezing point of a solution made by dissolving 42.392g of anthracene (C14H10) in 150.0mL of toluene?
What would happen to the average kinetic energy of the molecules of a gas sample if the temperature of the sample increased from 20 degrees celcius to 40 degrees celcius.
Given the equation At a particular temperature, K = 1.6 ´ 104. If you mixed 5.0 mol B, 0.10 mol C, and 0.0010 mol A in a one-liter container, which direction would the reaction initially proceed?
Given the reaction 4Al(s) + 3O2(g) --> 2Al2O3(s), what is the minimum number of moles of oxygen gas required to produce 1.00 mole of aluminum oxide?
Which of the following is a neutralization reaction?
used the 8900 kilojoules you expend in energy in one day to heat 50000 of water at 20, what would be the rise in temperature?
The extract and the insoluble residue both heated to dryness, could you determine the amounts of NaCl ,NH4Cl ,and SiO2 originally present? Why or why not?
A sample of calcium carbonate [CaCO3 (s)] absorbs 45.5 J of heat, upon which the temperature of the sample increases from 21.1°C to 28.5°C. If the specific heat of calcium carbonate is 0.82 J/g-K, what is the mass (in grams) of the sample?
A syringe initially holds a sample of gas with a volume of 285 mL at 355 K and 1.88 atm. To what temperature must the gas in the syringe be heated/cooled in order to have a volume of 435 mL at 2.50 atm?
500.0 g of ammonia react with 51.0 moles of sulfuric acid to produce ammonium sulfate. How many moles of excess sulfuric acid are left over after the reaction is complete?
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Both the LOCADTR and the ASAM-PPC can be used to complete the level of care assessments. Which one might you prefer to use and why?
What is the legacy of The Prince? What and who did The Prince influence in history? How is it regarded today? What is its lasting impact?
Would you consider choosing feminist, solution-focused,or narrative therapies. What empirical evidence is available to support the use of these theories?
What is something you learned today about child's protection that you didn't know before? How will you integrate this new learning into your future role as a So
how does politics and the military overlap? How does politics and religion overlap? How does the military and religion overlap?
What can transformative learning do for adult learners that other pedagogy styles and instructional designs cannot do? Explain.
If the advertisement does not violate any laws, Daniel might think the testimony Ms Kunies makes is not honest. Ms Kunies posted on facebook