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Quimica Geral 1 - Russel.pdf

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(e) 4,651 x 10 22 ,<br />

(f) 127,<br />

(g) 3240,1 x 10 -24<br />

1.24 Faça as operações aritméticas indicadas, admitindo que cada número é resultado<br />

de uma medida experimental:<br />

(a) 323 + 2,981,<br />

(b) 29,368 - 0,004,<br />

(c) 26,14 + 1,073 + 2,949,<br />

(d) 4,673 - 10,1,<br />

(e) 52~565+ 13,<br />

(f) 126 x 3,9,<br />

(g) 4,638 x 9,00,<br />

1.25 Indique se cada uma das seguintes unidades é uma medida de comprimento,<br />

massa, volume ou tempo:<br />

(a) m 3 ,<br />

(b) ms,<br />

(c) mg,<br />

(d) nm,<br />

(e) dm 3 ,<br />

(f) mm,<br />

(g) mm 3 ,<br />

(h) kg,<br />

(i) ns.<br />

1.26 Qual o significado de cada um dos seguintes prefixos?<br />

(a) mili,<br />

(b) micro,<br />

(c) nano,<br />

(d) quilo,<br />

(e) centi.<br />

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