SDS Metric Conversions

Choose one of the following Safety Data Sheets (SDS) Metric Conversions and answer the following questions. In each case, also indicate the SDS section number that contained the relevant information.

SDS Metric Conversions links:-

Sodium Bicarbonate: http://www.labchem.com/tools/msds/msds/LC22943.pdf
Ammonium Nitrate https://www.fishersci.com/msds?productName=A676212
Sucrose https://www.fishersci.com/shop/msdsproxy?productName=S650&productDescription=SUCROSE
Methanol https://www.labchem.com/tools/msds/msds/VT430.pdf

	Section #
What is the chemical name AND chemical formula of the compound? State how many atoms are in one unit of this compound _________
Describe the appearance of the compound. What is the natural state of this material?
State three physical properties.
State three chemical properties. (NOT THE SAME as physical properties)
What should you wear when handling this material?
Do you think that this compound poses a health hazard? Why or why not?
Do you think that this compound poses an environmental hazard? Why or why not?

Dimensional Analysis

Single unit conversion

Double unit conversion

How to read: 1 prefix unit = ____ base units

Example: 5 Gbyte = 5×10⁹ bytes

Prefix	Symbol	# base units
tera-	T	10¹²
giga-	G	10⁹
mega-	M	10⁶
kilo-	k	10³
hecto-	h	10²
deka-	da	10
–	–	–
deci-	d	10^-1
centi-	c	10^-2
milli-	m	10^-3
micro-	µ (mu)	10^-6
nano-	n	10^-9
pico-	p	10^-12
femto-	f	10^-15

Complete each of the following conversions and maintain the same number of s.f.

0.0007836 g à µg

25.82 g à kg

37.1 × 10^-6 cm à nm

Hint: cm à m à nm

1000 ml à dm³ (4 sf)

342 mm² à nm²

Hint: 10 mm = 1cm

(10 mm)² = (1cm)²

100 mm² = 1cm²

Convert34 mph to km/h. Hint: does mph contain 1 or 2 measurement units?

Convert32.0 dm s^-1 to km h^-1

Calculate the mass of 16.0 fluid ounces of milk. Density of milk = 1.03 g/ml, 1 fl. oz. = 29.6 ml.

Convert 9.85 dm³ to ml.

Evaluation of Significant Figures

Indicate the number of significant figures in each number (some may have more than one answer):

a. 307.60 g ____________ b. 250 mL ______________

c. 0.00256 m ____________ d. 10.00 mL ______________

Round each of the numbers to the indicated number of significant figures AND write the number in scientific notation:

a. 36000 (3) _______________ b. 0.00752689 (4) ______________

c. 319 (2) _______________ d. 0.19850 (3) ______________

Make each of the calculations and round the answers to the correct number of significant figures (s.f.):

3.58g/1.739 ml

4.03 ml + 0.001 ml

(1.345 g + 0.022 g)/(13.36 ml – 8.4115 ml)

(210 ×10^-4)²(78.201 × 10^-5)^-3

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SDS Activity and Metric Conversions