44-Exp-Not

# 44-Exp-Not - Multiply: 1.27*10 15 * 2.7 *10-5 =...

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GCHEM I LAB SCIENTIFIC NOTATION CONCEPT PROBLEMS (12/13/05) 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 = ______________ 0.0000012 = _______________ 2) Sci-Notation to Number: 2.56*10 -5 = ______________ 4.56*10 +6 = _______________ 3) Number to Sci-Notation: 0.60300 = ______________ 187.34 = _______________ ------------------------------------------------------------------------------------------------------------------- 4)
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Unformatted text preview: Multiply: 1.27*10 15 * 2.7 *10-5 = _______________ 5) Divide 9.5*10 10 / -2.5*10 2 = _______________ 6) Add 6.54*10 6 + 5.81*10 9 = _______________ 7) Sub 6.02*10 23 5.91*10 22 = _______________ 8) Multiply 3.00*10 12 * -4.00*10 23 = _______________ 9) Divide: 1.67*10 8 / 200. = _______________ 10) Add: 1.80*10 6 + 5.73*10 4 + 6.97*10 5 = _______________ 11) Sub: 9.33*10 2 23.4 = _______________ 12) Add: 3.80*10 23 + 6.91*10 25 +7.32*10 27 = _______________ 13) Divide: 9.50*10 23 / 5.0*10 12 = _______________ 14) Multiply 4.87*10 9 * 8.34*10 9 = _______________ 15) Sub: 7.34*10 23 1.34*10 23 = _______________ 16) Add: 1.80*10 16 + 5.20*10 17 + 9.75*10 15 = _______________ 17) Multiply: 3.45*10 12 * 4.20*10 34 = _______________ 18) Sub 5.0*10 12 1.00*10 14 = _______________ 19) Divide: 1.44*10-6 /12,000,000 = _______________ 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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