hydroxide - Google Search CoursesL Library How many moles of sodium is equivalen
ID: 867643 • Letter: H
Question
hydroxide - Google Search CoursesL Library How many moles of sodium is equivalent to 5.17 x 1023 Na atoms? Answer to 2 decimal places. Selected Answer: 2.25 Correct Answer: 0 0.86 ± 3% Question 7 How How many C2H6 molecules are contained in 0.522 moles of ethane? Once you have your answer, take the LOG of it on your calculator, an decimal places. Selected Answer: Correct Answer: 23.5 23.50 ± 3% Question 8 f Nagps0y contain 482 How many moles of Na2P307 contain 4.82 x 1024 atoms? Selected Answer: 1.32 Correct Answer: 0.67 ± 3% Question 9 How many hydrogen atoms are contained in 2.22 moles of NH3? Take the log of your answer and enter to 2 decimal places Selected Answer 1.58 Correct Answer: 24.60 ± 0.02Explanation / Answer
1 mole = 6.023 x 10^23 atoms
1 atom= 1/(6.023 x 10^23) mole
6) 5 17 x 10^23 atoms of Na = 5 17 x 10^23 x 1/(6.023 x 10^23) mole = 0.86
8) 4.82 x 1023 atoms
4.82 x 1024 atoms = 4.82 x 1023 x 1/(6.023 x 10^23) mole = 0.80
( please check this problem it may be given wrong . for that answer 10^23 correct not 10^24)
9) 1 mole NH3------------------------ 3 x 6.023 x10^23 H atoms
2.22 mole NH3----------------- 3 x 2.22 x 6.023 x10^23 H atoms= 40.11x 6.023 x10^23 H atoms
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.