A few days ago
PLEASE help me with chem., how do you multiply/divide..?
using significant figures
11) 4.3 cm x 2.15 cm x 4.8 cm
14) 4.7 cm x 8.767 cm
18) 100.75/2.2
this is chemistry hw, i have no idea what to do, please help me
Top 3 Answers
A few days ago
Favorite Answer
when multiplying/dividing, always take the lowest sig fig.
11.
4.3 x 2.15 x 4.8 = 44.3760
your lowest sig fig is 2. your answer needs to be in 2 sig figs. so, your finaly answer would be 44 cm
14.
4.7 x 8.767 = 41.2049
lowest sig fig is 2. your answer needs to be in 2 sig figs. so, your finaly answer would be 41 cm
18.
100.75/2.2 = 45.795454
lowest sig fig is 2. your answer needs to be in sig figs: 46 units
0
A few days ago
just multiply them..with or without decimals..if without dont forget to put the decimal point back in there!:)
11) 4.3 x 2.15 x 4.8= 44.376
but in your case it will be 44
0
A few days ago
The precision of the answer can not exceed the least precise variable used in determining the answer.
11) 44 cm
14) 41 cm
18) 46
Cheers!
0
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