44-Exp-Not-Ans

# 44-Exp-Not-Ans - 8 6 Add 6.54*10 6 5.81*10 9 = 5.82x10 9 7...

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GCHEN I LAB SCIENTIFIC NOTATION CONCEPT PROBLEM ANSWERS Move decimal left multiply by one + power of ten (10 +1 ) Ex: 123.5 (move 2 places left (x 10 2 ) 1.235 x 10 +2 Move decimal right multiply by one – power of ten (10 -1 ) Ex: .0235 (move 2 places right (x 10 -2 ) 2.35 x 10 -2 Add/Sub exponent same for all numbers Ex: 1.23 x 10 -3 + 0.4 x 10 -3 = 1.64 x 10 -3 S/F = 1.6 x 10 -3 Multiply digit terms and add exponents Ex: (1.23 x 10 -3 )*(1.4 x 10 +6 ) = 1.722 x 10 +3 S/F = 1.7 x 10 +3 Divide digit terms and subtract exponents Ex: 8.23 x 10 +4 /1.2 x 10 -3 = 6.858 x 10 +7 S/F = 6.9 x 10 +7 1) Number to Sci-Notation: 23,000 = _-2.3 x 10 4 ___ _ 0.0000012 = ____ 1.2 x 10 -6 ___ _ 2) Sci-Notation to Number: 2.56*10 -5 = __ 0.0000256 ___ _ 4.56*10 +6 = __4,560,000_____ 3) Number to Sci-Notation: 0.60300 = _6.0200 x 10 -1 __ 187.34 = ___1.8734 x 10 2 _ _ 4) Multiply: 1.27*10 15 * 2.7 *10 -5 = _____ 3.4x10 10 ___ 5) Divide 9.5*10 10 / – 2.5*10 2 = _____3.8 x 10
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Unformatted text preview: 8 ___ 6) Add 6.54*10 6 + 5.81*10 9 = _____ 5.82x10 9 ___ 7) Sub 6.02*10 23 – 5.91*10 22 = ___5.43 x 10 23 __ 8) Multiply – 3.00*10 12 * – 4.00*10 23 = ___1.20 x 10 36 __ 9) Divide: 1.67*10 8 / – 200. = ___- 8.35 x 10 5 _ _ 10) Add: 1.80*10 6 + 5.73*10 4 + 6.97*10 5 = __2.55 x 10 6 ____ 11) Sub: 9.33*10 2 – 23.4 = ____9.10 x 10 2 __ 12) Add: 3.80*10 23 + 6.91*10 25 +7.32*10 27 = ____ 7.39x10 27 ___ 13) Divide: 9.50*10 23 / 5.0*10 12 = __1.9 x 10 11 ____ 14) Multiply 4.87*10 9 * -8.34*10 9 = __ -4.06 x 10 +19 __ 15) Sub: 7.34*10 23 – 1.34*10 23 = __6.00 x 10 23 ____ 16) Add: 1.80*10 16 + 5.20*10 17 + 9.75*10 15 = __5.48 x 10 17 ____ 17) Multiply: 3.45*10 12 * 4.20*10 34 = __ 1.45 x 10 +47 ___ 18) Sub 5.0*10 12 – 1.00*10 14 = ___9.5 x 10 13 ___ 19) Divide: 1.44*10-6 /12,000,000 = ____ 1.2x10 –13 ___ jpechunf08/2003...
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## This note was uploaded on 07/28/2011 for the course CHM 2045 taught by Professor Eng during the Spring '10 term at UNF.

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