General Chemistry Laboratory I

Date:

Lab $1$ Significant Figures and Dimensional Analysis

$($Prepared by W$.$ Song$)$

Student name

PRE$-$LABORATORY QUESTIONS

How many significant figures are in each measurement?

$(1)0\mathrm{.}0044500m$

$(2)5\mathrm{.}003km$

$(3)10dm$

$(4)1\mathrm{.}00{10}^{3}s$

$(5)0\mathrm{.}002mm$

$(6)10,000m$

Define accuracy and precision.

Convert $1\mathrm{.}567$ kilometers to centimeters.

Convert $3\mathrm{.}70$ milligrams to kilograms.

IN$-$LABORATORY WORIKSHEET

Give the number of significant figures in each of the following numbers.

$(1)1,278\mathrm{.}50$

$(2)120,000$

$(3)90,027\mathrm{.}00$

$(4)0\mathrm{.}0053567$

$(5)670$

$(6)0\mathrm{.}00730$

$(7)8\mathrm{.}002$

$(8)823\mathrm{.}012$

$(9)0005789$

$(10)2\mathrm{.}60$

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