show your work and express your answer to the correct number of significant figures
i. 2.526/3.1 + 0.470/0.623 + 80.705/0.4326
ii. (1.00866 - 1.00728)/6.02205 x 1023
iii. (9.5 + 4.1 + 2.8 + 3.175)/4 (assume that this operation is taking the average of four numbers).
show your work by converting the following units and express your answer to correct number of significant figures.
i. 908 oz to kilograms
ii. 2.89 gal to milliliters
iii. the melting point of tungsten, 3680 k to ◦f