2237027421 a1 b2 c3 d4 e5 th th th hintfor11

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 10th editions: p. 18. Example 1.1. Density = mass/volume 6. How many significant figures are there in the measurement of 6.124 x 10‐5? (a) 1 (b) 2 (c) 3 (d) 4 (e) 5 Hint: For 11th ed.: p.p. 19‐21, also Example 1.4(e). For both 9th and 10th editions: p.p. 23‐26. Memorize the rules. Example 1.4. 7. How many significant figures are appropriate to show in the result after carrying out the operation below? (223.7 + 0.27) ÷ 4.21 =? (a) 1 (b) 2 (c) 3 (d) 4 (e) 5 th th th Hint: For 11 ed.: p. 21. also p. 31: 1.35 (d) & 1.36(d). For both 9 and 10 editions: p. 25. Example 1.5. You need to memorize all the rules concerning the significant figures and the rules related to addition or subtraction and multiplication or division. Many students do not know the differences between addition/subtraction and multiplication/division. See two examples below: 1 Remember that the answers obtained from calculators are always WRONG when considering the significant figures. So when the question combining addition/subtraction...
View Full Document

This note was uploaded on 01/25/2014 for the course CHEM 1411 taught by Professor None during the Fall '11 term at HCCS.

Ask a homework question - tutors are online