moles = 6.1
1 mole of any substance contain 6.022 x 10^23 particles
6.1 mole of Hg contain 6.1 x 6.022 x 10^23 atoms = 3.67 x 10^24
N = 3.7 x 10^24 Hg atoms (answer)
Exercise 6.17 Part A How many mercury atoms are in 6.1 mol of mercury? Express your...
Part A How many sulfur atoms are there in 5.30 mol of sulfur? Express your answer using three significant figures. νο ΑΣφ 5 ? N= atoms Reguest Answer Submit Provide Feedback P Pearson yright O 2019 Pearson Education Inc. All rights reserved. I Terms of Use I Privacy Policy I Permissions 1 Contact L next hp
How many atoms are in each elemental sample? Part A.) 3.8 mol Cu Express your answer using two significant figures. Part B.) 5.1×10−3 mol C Express your answer using two significant figures. Part C.) 16.1 mol Hg Express your answer using three significant figures. Part D) 0.235 mol Na Express your answer using three significant figures.
Part A How many half-lives must elapse until 88 % of a radioactive sample of atoms has decayed? Express your answer using two significant figures 10 AED – O @ ? Submit Request Answer Part B How many half-lives must elapse until 97 % of a radioactive sample of atoms has decayed? Express your answer using two significant figures. IVO AXP = 0e? 1/2 Submit Request Answer Provide Feedback
Part A How many sulfur molecules are there in 0.570 mol of octasulfur, Sg? Express your answer to three significant figures. IVO AEO ? molecules Submit Request Answer Part B How many sulfur atoms are there in 0.570 mol of octasulfur, S8? Express your answer to three significant figures. ΑΣφ ? atoms
How many atoms are in each elemental sample? 1. 8.6×10−3 mol C Express your answer using two significant figures. 2. 29.3 mol Hg 3. 0.260 mol Na
Chapter 5 Exercise 5.42 Part A What is the temperature of 0.65 mol of gas at a pressure of 1.4 bar and a volume of 10.7 L Express your answer using two significant figures. ? T K Submit Request Answer Provide Feedback
YPart A How many grams are in 2.20 mol of sodium chloride (NaCl)? Express your answer numerically in grams. View Available Hint(s) Submit Part B Correct Significant Figures Feedback: Your answer 128.5 g was either rounded different different number of significant figures than required for this part Part B How many water molecules are in a block of ice containing 1.50 mol of water (H2O)? Express the number of molecules numerically View Available Hint(s) molecules of H2O Submit
mpleting Part C 1.8 x 1023 lead atoms Express the mass in grams to two significant figures. VO Aydo Submit My Answers Give Up Part D 7.6 x 1021 uranium atoms Express the mass in grams to two significant figures. Submit My Answers Give Up Provide Feedback Continue
Problem 6.63 Review Part A Driving in your car with a constant speed v, you encounter a bump in the road that has a circular cross section, as indicated in the figure(Figure 1). The radius of curvature of the bump is 35 m. At what speed must you go over the bump if people in your car are to feel "weightless"? Express your answer using two significant figures. Πνη ΑΣφ m/s Submit Request Answer Figure 1 of 1 <Return to...
How many atoms are there in 2.30 g Hg? Express your answer using appropriate units and significant figures.