Determine original money using avogadro-s number
Avogadro's number is big. If you had 6.02 x 1023 dollars, and could spend it at 1 billion (109) per second for your entire life ( 75 years), what approximate percentage of your original money would you have left?
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The final temperature is 29 C. Calculate the standard heat of solution (on a per mole basis). Was the dissolution exothermic or endothermic?
The flask was then shaken until the solution was uniform. A 25.0-rm mL sample of this glucose solution was diluted to 0.500 rm L. How many grams of glucose are in 100. rm mL of the final solution?
Calculate the solubility of Ca(OH)2 in a 0.469M CaCl2 solution at 31°C, given that the Ksp of Ca(OH)2 is 4.96 x 10-6 at that temperature.
What mass of sucrose should be combined with 514 g of water to make a solution with an osmotic pressure of 8.85 atm at 295 K? (Assume the density of the solution to be equal to the density of the solvent.)
Determine the force exerted on the (rigid) supports when the temperature becomes T2 = 18OC. The material properties and cross-sectional area of each bar are given.
A 0.670 Liter can of CO2 gas at 273 K and 1 ATM of pressure is thrown into dry ice. The temp falls to 50 K and the volume decreases to 0.1 L after the can collapses. What is the pressure after the can collapses?
A close chemical relative of the banned insecticide DDT is methoxychlor (C16H15Cl3O2). Methoxychlor is currently used as a home insecticide. Calculate the mass percent of oxygen in methoxychlor.
A 10.00-mL sample of sulfuric acid from an automobile battery requires 35.08 mL of 2.12 M sodium hydroxide solution for complete neutralization. what is the molarity of the sulfuric acid? sulfuric acid contains two acidic hydrogens.
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Research a selected local, national, or global nonprofit organization or government agency to determine how it contributes to public health and safety
1. Define and describe the primary goals of screening. 2. Discuss your thoughts on the relationship between economics and nutrition.
1. What other subjective data would you obtain? 2. What other objective findings would you look for?
Discuss your thoughts on the relationship between economics and nutrition. How would you advise people of low socioeconomic status to eat healthy on a budget?
A 65-year-old male with chronic obstructive pulmonary disease (COPD) presents to the clinic with a cough he has had for the past 2 weeks.
Describe how the following example illustrates one or more of the system characteristics that contribute to dynamic complexity.
Analyze the difference between the practices of a master's prepared nurse compared to that of a baccalaureate-prepared nurse.