Introductory Chemistry For Today
8th Edition
ISBN: 9781285644561
Author: Seager
Publisher: Cengage
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Consider the following operations on the number 2.23 x 10-2.
Without using a calculator, decide which would give a significantly smaller value than 2.23 x 10², which would give a
significantly larger value, or which would give essentially the same value.
-2
a. 2.23 x 10 + 8.44 x 105
b. 2.23 x 10 2 - 8.44 x 105
c. 2.23 x 102 x 8.44 x 10
d. 2.23 x 102÷ 8.44 x 105
What is the equality that would provide the following conversion factors?
12 inches / 1 foot or 1 foot / 12 inches.
A. 12 foot = 1 inch
B. 12 inches
C. 1 foot
D. 1 foot = 12 inches
Convert the following measurements.a. 5.70 g to milligrams d. 45.3 mm to metersb. 4.37 cm to meters e. 10 m to centimetersc. 783 kg to grams f. 37.5 g/mL to kg/L
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- Celsius and Fahrenheit Temperature Conversion Conver 100.0°F to degrees Celsius and to kelvins. Convert 2,200°F to degrees Celsius and to kelvins. An individual who is ill has a Temperature of 40.0°C. Normal body temperature is 37.0°C. This represent in °F? What is the individual's body temperature in °F?arrow_forward5 nyoor X A the p X Spoti x A Chap x E * Par X Netfli X Goo 53. Calculate Make the following conversions. Express your answers in scientific notation. a. 14.8 g = ? ug b. 3.72 g = ? kg C. 66.3 L ? cm³ d. 7.5 x 104 J = ? kJ e. 3.9 × 10° mg = ? dg f. 2.1 X 10 dL = ? µL %3D %3Darrow_forwardIn which of the following pairs do both numbers contain the same number of significant figures?a. 0.068 90 m3 and 6.89 m3b. 0.420 00 kg and 42 kgc. 10 m/s and 100 m/sd. 3.14 L and 3.14 * 10-3 Larrow_forward
- The lowest temperature recorded in a particular city during the past year was-16.22 C. What was the temperature on the Kelvin scale? K The highest temperature recorded in the same city during the past year was 303.84 K. What was the temperature in degrees Celsius? C.arrow_forwardConvert 234.0 x10^-4 to the proper exponential notation following thr rules of significant figures. A. 2.340x10^2 B. 2.340x10^ 0 C. 2.340x10^-2 D. 2.34x10 ^ 3 E. 2.340x10^ 3 F. 2.340x10^-1 G. 2.34x10^-2 H. 2.34x10^2 I. 2.34x10 ^-3 J. 2.340x10^ -3 K. 2. 349x10^1 L. 2.340arrow_forwardConversions: include the correct number of significant digits a. 1.2 g to ug (micrograms) b. 10.0 cm to in c. 78.9 mg to garrow_forward
- A zinc cylinder gas a diameter of 2.500cm, as measured using caliper. The cylinder is then soaked in acid, reducing its diameter to 2.1cm, as measured with ruler. Choose the value that expresses the change in the cylinder diameter using the correct number of significant figures. A 0.400cm B. 0.40 cm C.0.4cm D.4.6cm D. 4.6arrow_forward4. If a car's fuel economy in Mexico is rated 13.2 km/lL, what is the rating in miles per gal (mile/gal)? 5. Using the metric prefix handout, perform the following conversions: a. 25 L = ? GL 6. b. 8.08 Mm = ? nm 6. The area of a table is 325 cm2. What is the area of the table in square inches (in²)? 0. 15500031 50.3751 in 7. A room has a volume of 299 m3. What is the volume of the room in yd3? 391 yed 3 299gr? x lo30795 yd_391 yd3 - अआपवarrow_forwardCarry out each calculation and give the answer using the proper number of signifi cant fi gures. a. 10.70 × 3.5 b. 0.206 ÷ 25,993 c. 1,300 ÷ 41.2 d. 120.5 × 26arrow_forward
- Complete the table.a. 1245 kg 1.245 * 106 g 1.245 * 109 mgb. 515 km _____dm _____cmc. 122.355 s _____ms _____ksd. 3.345 kJ _____J _____mJarrow_forwardUse the prefix multipliers to express each measurement without exponents. a. 1.2 x 10-9 m b. 22 x 10-1 s c. 1.5 x 10°g d. 3.5 x 10°Larrow_forwardDetermine a single factor derived from Table 1.3 that could be used as a multiplier to make each of the following conversions: a.3.4lb to kilograms b.3.0yd to meters c.1.5oz to grams d.40.cm to inchesarrow_forward
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