159m- 1.58T60x10 F 1.59x109 4. The mass of an ave rage neon atom is 20.2 atomic mass units. One atomic mass unit is equal to 1.66x10 g. What is the mass in grams of 20 neon atoms? . How many minutes are in 6.75 years? 24hrs 913 6.75ups 365 days 1ur 2463.75da MAU =3.547,800 main = 3,547800x10-3.55x10 If a recycling center collects 1254 aluminum cans and there are 22 aluminum ca one pound, what volume in liters of aluminum was collected? (density Al = 2.70 g/mL). 454 g = 1lb.

159m- 1.58T60x10 F 1.59x109 4. The mass of an ave rage neon atom is 20.2 atomic mass units. One atomic mass unit is equal to 1.66x10 g. What is the mass in grams of 20 neon atoms? . How many minutes are in 6.75 years? 24hrs 913 6.75ups 365 days 1ur 2463.75da MAU =3.547,800 main = 3,547800x10-3.55x10 If a recycling center collects 1254 aluminum cans and there are 22 aluminum ca one pound, what volume in liters of aluminum was collected? (density Al = 2.70 g/mL). 454 g = 1lb.

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter2: Atoms, Molecules, And Ions

Section: Chapter Questions

Problem 90QAP: Calculate the average density of a single Al-27 atom by assuming that it is a sphere with a radius...

See similar textbooks

Similar questions

Calculate the average density of a single Al-27 atom by assuming that it is a sphere with a radius of 0.143 nm. The masses of a proton, electron, and neutron are 1.67261024g,9.10941028g, and 1.67491024g, respectively. The volume of a sphere is 4r3/3, where r is its radius. Express the answer in grams per cubic centimeter. The density of aluminum is found experimentally to be 2.70 g/cm3. What does that suggest about the packing of aluminum atoms in the metal?
As part of a science project, you study traffic patterns in your city at an intersection in the middle of downtown. You set up a device that counts the ears passing through this intersection for a 24-hr period during a weekday. The graph of hourly traffic looks like this. a. At what time(s) does the highest number of cars pass through die intersection? b. At what time(s) does the lowest number of cars pass through die intersection? c. Briefly describe the trend in numbers of cars over the course of die day. d. Provide a hypothesis explaining the trend in numbers of cars over the course of the day. e. Provide a possible experiment that could test your hypothesis.
You have two distinct gaseous compounds made from element X and element Y. The mass percents are as follows: Compound I: 30.43% X, 69.57% Y Compound II: 63.64% X, 36.36% Y In their natural standard states, element X and element Y exist as gases. (Monatomic? Diatomic? Triatomic? That is for you to determine.) When you react gas X with gas Y to make the products, you get the following data (all at the same pressure and temperature): 1. volume gas X + 2 volumes gas Y2 volumes compound I 2. volumes gas X + 1 volume gas Y2 volumes compound II Assume the simplest possible formulas for reactants and products in the chemical equations above. Then, determine the relative atomic masses of element X and element Y.
5.6 x 1012 is ... * Small than 1 O Larger than 1 60,900,000 is equal to * 6.9 x 10° 6.09 x 106 O 6.09 x 107 O 6.9 x 107
n=? O PVIRT OP T/RV TR/PV O PR/VT
amazonbasics The mass of an electron is. 9.109 X 10331 Kg. The mass of a proton is 1.693 x 10-27 kg. How many times larger is the mass of a proton then the mass of an electron? (Round the decimal Value to eight decimal places) X 10 times larger
The radius of a barium atom is 217 pm. How many barium atoms would have to be laid side by side to span a distance of 2.78 mm? atoms
Under certain conditions, water can be separated into oxygen and hydrogen gases according to the equation 2H20 2H2 + 02 In a lab, 112g of hydrogen gas and 888g of oxygen gas were collected. Student A says that the amount of water to start cannot be determined, but Student B says that the water must have been 1000g. Who is correct? O Student A, because the water was not measured to start with. O Neither are correct. It would have been 1112g, because there are 2 H2 to 1 O2. O Neither are correct. It was 2000g because the equation shows 2H20. O Student B, because of the law of conservation of matter. 9 Type here to search
248024132 References Use the References to access important values if needed for this question. Under certain conditions, the substances sulfur dioxide and oxygen combine to form sulfur trioxide. If 28.8 grams of sulfur dioxide and 7.2 grams of oxygen combine to form sulfur trioxide, how many grams of sulfur trioxide must form? Mass= Submit Answer tion of Mass: Macroscopic: 1.
-0.0049t = A radioactive substance decays according to A 491, where Ao is the initial amount and t is the time in years. If Ap time for the radioactive substance to decay to 193 grams. Round your answer to two decimal places, if necessary. Ape- = 550 grams, find the
11) The half-life of Aluminum-28 from your lab is 2.2414 minutes. If you start with 13 mg of the material, how long will it take for the amount of Al-28 to drop to 1.3 mg?
ce the following equations: _103+ HSO3 + H* + _HSO3 → -√₂ + + _H₂O 103 ->> CamScanner _H* + -1₂ + — SO-2 H₂O 94² + SOA H*