What is the combined mass in grams of objects that have masses of 0.300kg, 75.0g and 650mg? (show calculation

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What is the combined mass in grams of objects that have masses of 0.300kg, 75.0g and 650mg? (show calculation

2007-01-15 22:34:20 · 3 answers · asked by roger s 1 in Science & Mathematics ➔ Chemistry

3 answers

0.300kg *1000g/kg = 300.g

650mg*1g/1000mg = .65g

300.g + 0.650g + 75.0g = 375.65g,

but if you are also expected to know significant digits, the answer is 375g. If you don't know sig digits, disregard that.

2007-01-15 22:44:34 · answer #1 · answered by Gerfried 2 · 0⤊ 0⤋

0.300kg = 3gm
650mg = .65gm
total = 3 + .65 + 75 = 78.65

2007-01-16 06:43:18 · answer #2 · answered by Bishnoi 2 · 0⤊ 0⤋

expressed in grams= 300 +75+0.650 =375.65 g

2007-01-16 06:56:09 · answer #3 · answered by santmann2002 7 · 0⤊ 0⤋