2. Calculate the freezing point of a solution made from 32.7 g of propane, C3H8, dissolved in 137.0 g of benzene, CoHo. The freezing point of benzene is 5.50°C and its Kf is 5.12°C/m.

an introduction on a research scientist

» Significant Figure Rules 01 >> 02 >> 03 >> 04 >> 05 >> All nonzero digits are significant. Zeros that appear between other nonzero digits are always significant. Zeros that appear in front of all of the nonzero digits are called left-end zeros. Left-end zeros are never significant. Zeros that appear after all nonzero digits are called right-end zeros. Right-end zeros in a number that locks a decimal point are not significant. ▬▬▬ 美銀銀時 ☐☐ Right-end zeros in a number with a decimal point are significant. This is true whether the zeros occur before or ofter the decimal point. 237 has three significant figures. 1.897 has four significant figures. 39,004 has five significant figures. 5.02 has three significant figures. 0.008 has one significant figure. 0.000416 has three significant figures. 140 has two significant figures. 75,210 has four significant figures. 620.0 has four significant figures. 19.000 has five significant figures. For multiplication and division problems, the answer…

1.) In a hypothetical garden each of the identical trees consist of 11 branches and each branch on a tree consists of 35 leaves. How many trees would have 8,085 leaves? (Do not give units in answer.) 2.) Supposing in a hypothetical garden 43 identical trees contain a total of 19,565 leaves. If each branch on a given tree consist of 35 leaves how many branches does each tree have? (Do not give units in your answer.)