Convert; a 5.91 kg of chrome yellow to milligrams b 753 mg of vitamin A to micrograms c 90.1 MHz (megahertz), the wavelength of an FM signal, to kilohertz d 498 mJ (the joule, J, is a unit of energy) to kilojoules
Convert; a 5.91 kg of chrome yellow to milligrams b 753 mg of vitamin A to micrograms c 90.1 MHz (megahertz), the wavelength of an FM signal, to kilohertz d 498 mJ (the joule, J, is a unit of energy) to kilojoules
Author: Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
c 90.1 MHz (megahertz), the wavelength of an FM signal, to kilohertz
d 498 mJ (the joule, J, is a unit of energy) to kilojoules
(a)
Expert Solution
Interpretation Introduction
Interpretation:
The mass in kilogram has to be converted to milligrams.
Concept Introduction:
Conversion-factor method is the one which can be used to convert one metric unit into another. With this, any unit can be converted to another unit by means of ratio. The ratio that is used to convert unit is known as conversion-factor. For example, one kilogram can be converted into gram by multiplying with 1000.
Answer to Problem 1.135QP
The given mass in kilogram is converted to milligrams as 5.91 ×106mg.
Explanation of Solution
Given mass in problem statement is 5.91 kg.
Since, 1kg=103g and 1mg=10-3g, we can use this to convert the above unit in micrograms,
5.91 kg × 103 g1 kg × 1 mg10-3 g=5.91×106mg
The given mass was converted into milligrams as shown above.
(b)
Expert Solution
Interpretation Introduction
Interpretation:
The mass in milligram has to be converted to micrograms.
Concept Introduction:
Conversion-factor method is the one which can be used to convert one metric unit into another. With this, any unit can be converted to another unit by means of ratio. The ratio that is used to convert unit is known as conversion-factor. For example, one kilogram can be converted into gram by multiplying with 1000.
Answer to Problem 1.135QP
The given mass in milligram is converted to micrograms as 7.53 ×105μg.
Explanation of Solution
Given mass in problem statement is 753 mg.
Since, 1mg=10-3g and 1μg=10-6g, we can use this to convert the above unit in micrograms,
753 mg × 10-3 g1 mg × 1 μg10-6 g=7.53×105μg
The given mass was converted into micrograms as shown above.
(c)
Expert Solution
Interpretation Introduction
Interpretation:
The frequency in Megahertz has to be converted to kilohertz.
Concept Introduction:
Conversion-factor method is the one which can be used to convert one metric unit into another. With this, any unit can be converted to another unit by means of ratio. The ratio that is used to convert unit is known as conversion-factor. For example, one kilogram can be converted into gram by multiplying with 1000.
Answer to Problem 1.135QP
The given megahertz is converted to kilohertz as 9.01 × 104 kHz.
Explanation of Solution
Given frequency in problem statement is 90.1 MHz.
Since, 1MHz=106Hz and 1 kHz=103Hz, we can use this to convert the above unit in kilohertz,
The given frequency was converted into kilohertz as shown above.
(d)
Expert Solution
Interpretation Introduction
Interpretation:
The energy in millijoule has to be converted to kilojoule.
Concept Introduction:
Conversion-factor method is the one which can be used to convert one metric unit into another. With this, any unit can be converted to another unit by means of ratio. The ratio that is used to convert unit is known as conversion-factor. For example, one kilogram can be converted into gram by multiplying with 1000.
Answer to Problem 1.135QP
The given millijoule is converted to kilojoule as 4.98 × 10-4 kJ.
Explanation of Solution
Given energy in problem statement is 498 mJ.
Since, 1mJ=10-3J and 1kJ=103J, we can use this to convert the above unit in kilojoules,
498 mJ × 10-3 J1 mJ × 1 kJ103 J=4.98 × 10-4 kJ
The given energy was converted into kilojoules as shown above.
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60. When tin comes in contact with the oxygen in the air,
tin(IV) oxide, SnO2, is formed.
Sn(s) + O2(g)
SNO2(s)
A piece of tin foil, 8.25 cm × 21.5 cm × 0.600 mm
(d = 7.28 g/cm³), is exposed to oxygen.
(a) Assuming that all the tin has reacted, what is the
mass of the oxidized tin foil?
(b) Air is about 21% oxygen by volume (d = 1.309 g/L
at 25°C, 1 atm). How many liters of air are required to
completely react with the tin foil?
|D
48. Are these data sets on chemical changes consistent with the law of conservation of mass?(a) A 12.8-g sample of sodium completely reacts with 19.6 g of chlorine to form 32.4 g of sodium chloride.(b) An 8-g sample of natural gas completely reacts with 32 g of oxygen gas to form 17 g of carbon dioxide and 16 g of water
Classify each change as physical or chemical.
(a) the rusting of iron(b) the evaporation of fingernail-polish remover (acetone) from the skin(c) the burning of coal(d) the fading of a carpet upon repeated exposure to sunlight
Chapter 1 Solutions
General Chemistry - Standalone book (MindTap Course List)
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