2 (a) How many protons are in 2.00 kg of pure iron? Answer using scientific notation nt)
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Q: 33
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Q: QUESTION 15 The volume of an automobile tire is 2.5 x 10 m3, the pressure of the air in the tire is…
A: Given data: - The volume of an automobile tire is v = 2.5 x 10-2 m3. The pressure of the air…


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- Consider the equation a=6πb/q√17 relating the variables a, b and q. If a scientist does an expirment in which b is held constant, q is varied, and a is measured. A. Identify the independent and dependent variables. B. What functional relationship is being testing? C. What should be plotted in order to confirm this relationship? (order matters)Calculate the number density of a plasma at a temperature of 108 °C and a pressure of 2 bar. Answer: 1.45 * 10^20The volume of an automobile tire is 2.5 × 10−2m3 . the pressure of the air in the tire is 3 atm and the temperature is 37C ◦ . what is is the mass of air in grams ? The mean molecular mass of air is 29g. 1 atm = 1.01 × 105 Pa ; Calculate to 2 decimals.
- The nucleus of an atom can be modeled as several protons and neutrons closely packed together. Each particle has a mass of 1.67 x 10-27 kg and radius on the order of 10-15 m. (a) Use this model and information to estimate the density of the nucleus of an atom. 3.986E177 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. kg/m³ (b) Compare your result with the density of a material such as iron. What do your result and comparison suggest about the structure of matter?10−4 must be which of the following? 10,000 0.0004 0.0001 100Given: a sample of copper has a mass of 48.62 g when measured in air and a mass of 43.19 g when measured completely submerged in water. Copper has an atomic number of 29 and an atomic mass of 63.546. You only need to determine the density of the sample and determine the radius of the copper atom.
- When the indoor temperature of a house is 25°C and the outdoor temperature is -8°C, the inside and outside surfaces of the glass are measured to be 21.4°C and 18.1°C. If the glass has an area of 3.06 m2 and a thickness of 6.23 mm, what is the rate of heat (in W) lost though the window [round your final answer to zero decimal places]? {kglass = 0.78 W/m∙K}A man jogging has a metabolic rate of 658 W. (a) Calculate his volume rate of oxygen consumption in L/s. ? L/s (b) Estimate his required respiratory rate in breaths/min if his lungs inhale 0.620 L of air in each breath and air is 20.9% oxygen. ?breaths/minThe volume of an automobile tire is 2.5 × 10−2m3 . the pressure of the air in the tire is 3 atm and the temperature is 37C ◦ . what is is the mass of air in grams ? The mean molecular mass of air is 29g. 1 atm = 1.01 × 105 Pa ; Calculate to 2 decimals.
- Manufacturers of headache remedies routinely claim that their own brands are more potent pain relievers than the competing brands. Their way of making the comparison is to compare the number of molecules in the standard dosage. Tylenol uses 325 mg of acetaminophen (C8H9NO2) as the standard dose, while Advil uses 2.00 x 102 mg of ibuprofen (C13H1802). Find the number of molecules of pain reliever in the standard doses of (a) Tylenol and (b) Advil. (a) Number Units (b) Number UnitsThe vapor pressure of water at 5°C is 0.8726 kPa. Calculate the vapor pressure in atm.Round answer to 4 significant digits.A bubble of air is rising from the sea floor, from a depth of about 500 m. At this depth the pressure is 5.1*106 Pa (about 50.3 atm) and is at a temperature of about 7.0° C. It rises to the surface with the atmosphere, at a temperature of 20° C. If the bubble is observed to have a volume of 4 cm³ at the surface, what was its volume at the sea floor? Assume the number of moles of gas in the bubble is constant. B.