EBK INTRO.CHEMISTRY (NASTA EDITION)
9th Edition
ISBN: 9781337678032
Author: ZUMDAHL
Publisher: CENGAGE CO
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Chapter 2, Problem 17ALQ
Complete the following and explain each in your own words: leading zeros are (never/sometimes/always) significant: captive zeros are (never/sometimes/always) significant; and trailing zeros are (never/sometimes/always) significant.
For any statement with an answer of “sometimes,” give examples of when the zero is significant and when it is not, and explain.
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Question 11 of 18 (1 point) Question Attempt: 3 of
How many signals do you expect in the 'H NMR spectrum for this molecule?
Br
Br
Write the answer below.
Also, in each of the drawing areas below is a copy of the molecule, with Hs shown. In each copy, one of the H atoms is colored red. Highlight in red all other H
atoms that would contribute to the same signal as the H already highlighted red.
Note for advanced students: In this question, any multiplet is counted as one signal.
Number of signals in the 'H NMR spectrum.
1
For the molecule in the top drawing area, highlight in red any other H atoms that will contribute to
the same signal as the H atom already highlighted red.
If no other H atoms will contribute, check the box at right.
No additional Hs to color in top
molecule
Check
For the molecule in the bottom drawing area, highlight in red any other H atoms that will contribute
to the same signal as the H atom already highlighted red.
If no other H atoms will contribute, check the box…
Organic Chemistry
Esterification reactions
1. Write the steps to prepare ester.
2. Write complete reaction of ethanol and acetic acid to make ester.
3. What does ester smell like? What are the uses of ester.
4. What the role of sulfuric acid in the esterification reaction
11. Complete the following esterification reaction with names of all the reactants and products under.
Hint: Remove the water and end up with ester
R-C-OH + ROH
R-C-OR + H₂O
A carboxylic acid
An alcohol
An ester
Water
BYJU'S
H-C-C
O-H
Нин
C-C-C-H
HAAA
H O-C-C-C-H
AAA
Ethanoic acid
Propanol
Water Propyl ethanoate
By com
CH3COOH + CH3CH2CH2CH₂CH₂OH →
Practice for alcohols aldehydes and ketones:
12. Draw the structures from the following names mixed of alcohol/aldehyde and ketone:
a. 4-methyl cyclohexanone
b. 3-methyl-2-pentenal
c. 2,3-dimethylcyclohexanone
d. 1,3propanediol or Propane 1,3 diol
13. Write systematic names for the following compounds identify
functional group:
a.
b. (CH3)2CH-C
OH
c) CH(CH₂)--
OH
-,-,
Chapter 2 Solutions
EBK INTRO.CHEMISTRY (NASTA EDITION)
Ch. 2.1 - Exercise 2.1 Write the numbers 357 and 0.0055 in...Ch. 2.2 - What if you were not allowed to use units for one...Ch. 2.5 - Exercise 2.2 Give the number of significant...Ch. 2.5 - Exercise 2.3 Give the answer for each calculation...Ch. 2.6 - Exercise 2.4 Wine is often bottled in 0.750-L...Ch. 2.6 - Exercise 2.5 Racing cars at the Indianapolis Motor...Ch. 2.7 - Exercise 2.6 Which temperature is colder, 172 K or...Ch. 2.7 - Exercise 2.7 Hot tubs are often maintained at 41...Ch. 2.7 - Exercise 2.8 An antifreeze solution in a car’s...Ch. 2.8 - Exercise 2.9A student wants to identify the main...
Ch. 2 - a. There are 365 days/year, 24 hours/day, 12...Ch. 2 - You go to a convenience store to buy candy and...Ch. 2 - When a marble is dropped into a beaker of water,...Ch. 2 - Consider water in each graduated cylinder as...Ch. 2 - What is the numerical value of a conversion...Ch. 2 - For each of the following numbers, indicate which...Ch. 2 - Consider the addition of “1 5.4” to “28.” What...Ch. 2 - Consider multiplying “26.2” by “16.43.” What would...Ch. 2 - In lab you report a measured volume of 128.7 mL of...Ch. 2 - Sketch two pieces of glassware: one that can...Ch. 2 - Oil floats on water but is “thicker” than water....Ch. 2 - Show how converting numbers to scientific notation...Ch. 2 - You are driving 65mph and take your eyes oil the...Ch. 2 - You have a1.0cm3 sample of lead and a1.0cm3 sample...Ch. 2 - The beakers shown below have different precisions....Ch. 2 - True or false? For any mathematical operation...Ch. 2 - Complete the following and explain each in your...Ch. 2 - For each of the following figures, a through d,...Ch. 2 - For the pin shown below, why is the third digit...Ch. 2 - Why can the length of the pin shown below not be...Ch. 2 - Use the figure below to answer the following...Ch. 2 - A represents a quantitative observation.Ch. 2 - Although your textbook lists (he rules for...Ch. 2 - When a large or small number is written in...Ch. 2 - When a large or small number is written in...Ch. 2 - Will the power of 10 have apositiveor...Ch. 2 - Prob. 6QAPCh. 2 - Express each of the following numbers...Ch. 2 - Rewrite each of the following as an “ordinary”...Ch. 2 - By how many places must the decimal point be...Ch. 2 - By how many places must the decimal point be...Ch. 2 - Prob. 11QAPCh. 2 - Write each of the following numbers as “ordinary”...Ch. 2 - Write each of the following numbers...Ch. 2 - Prob. 14QAPCh. 2 - What are the fundamental units of mass, length,...Ch. 2 - Give the metric prefix that corresponds to each of...Ch. 2 - Students often have trouble relating measurements...Ch. 2 - Students often have trouble relating measurements...Ch. 2 - Students often have trouble relating measurements...Ch. 2 - Students often have trouble relating measurements...Ch. 2 - The road sign I just passed says “New York City...Ch. 2 - The GPS in my car indicates that t have 100. mi...Ch. 2 - The tablecloth on my dining room table is 2 in...Ch. 2 - Who is taller, a man who is 1.62 in tall or a...Ch. 2 - The fundamental SI unit of length is the meter....Ch. 2 - 26. Which English unit of length or distance is...Ch. 2 - The unit of volume in the metric system is the...Ch. 2 - Which metric system unit is most appropriate for...Ch. 2 - When a measuring scale is used properly to the...Ch. 2 - In lab you report a measured volume of 158.6 mL of...Ch. 2 - For the pin shown in Fig. 2.5, why is the third...Ch. 2 - Why can the length of the pin shown in Fig. 2.5...Ch. 2 - Indicate the number of significant figures in each...Ch. 2 - Indicate the number of significant figures implied...Ch. 2 - When we round off a number, if the number to the...Ch. 2 - In a multiple-step calculation, is it better to...Ch. 2 - Round off each of the following numbers to three...Ch. 2 - Round off each of the following numbers to two...Ch. 2 - Round off each of the following numbers to the...Ch. 2 - Round off each of the following numbers to the...Ch. 2 - Consider the calculation indicated below:...Ch. 2 - The following water measurements are made: 18 mL...Ch. 2 - When the calculation(2.31)(4.9795103)/(1.9971104)...Ch. 2 - You are asked to determine the perimeter of the...Ch. 2 - When the sum 4.9965 + 2.11 + 3.887 is calculated,...Ch. 2 - How many digits after the decimal point should he...Ch. 2 - Evaluate each of the following mathematical...Ch. 2 - Evaluate each of the following mathematical...Ch. 2 - Without actually performing the calculations...Ch. 2 - Without actually performing the calculations...Ch. 2 - How many significant digits should be used to...Ch. 2 - Evaluate each of the following and write the...Ch. 2 - A represents a ratio based on an equivalence...Ch. 2 - How many significant figures are understood for...Ch. 2 - Given that 1 mi = 1760 yd, determine what...Ch. 2 - Given that 1 in. = 2.54 cm exactly, indicate what...Ch. 2 - For Exercises 57 and 58, apples cost $1.75 per...Ch. 2 - For Exercises 57 and 58, apples cost $1.75 per...Ch. 2 - Perform each of the following conversions, being...Ch. 2 - Perform each of the following conversions, being...Ch. 2 - Perform each of the following conversions, being...Ch. 2 - Perform each of the following conversions, being...Ch. 2 - 12.01 g of carbon contains6.021023 carbon atoms....Ch. 2 - Los Angeles and Honolulu are 2558 mi apart. What...Ch. 2 - The United States has high-speed trains running...Ch. 2 - The radius of an atom is on the order of1010 m....Ch. 2 - The temperature scale used in everyday life in...Ch. 2 - The point of water is at 32° on the Fahrenheit...Ch. 2 - Prob. 69QAPCh. 2 - The freezing point of water is _________ K.Ch. 2 - On both the Celsius and Kelvin temperature scales,...Ch. 2 - On which temperature scale (°F, °C, or K) does 1...Ch. 2 - Make the following temperature conversions: 44.2...Ch. 2 - Carry out the indicated temperature conversions. ...Ch. 2 - Convert the following Fahrenheit temperatures to...Ch. 2 - Convert the following Celsius temperatures to...Ch. 2 - The “Chemistry in Focus” segmentTiny...Ch. 2 - Perform the indicated temperature conversions. 275...Ch. 2 - Prob. 79QAPCh. 2 - The most common units for density are ___________.Ch. 2 - A kilogram of lead occupies a much smaller volume...Ch. 2 - If a solid block of glass, with a volume of...Ch. 2 - Is the density of a gaseous substance likely to be...Ch. 2 - What property of density makes it useful as an aid...Ch. 2 - Referring to Table 2.8, which substance listed is...Ch. 2 - Referring to Table 2.8, determine whether...Ch. 2 - For the masses and volumes indicated, calculate...Ch. 2 - For the masses and volumes indicated, calculate...Ch. 2 - The element bromine at room temperature is a...Ch. 2 - Sunflower oil has a density of 0.920 g/mL. What is...Ch. 2 - If 1000. mL of linseed oil has a mass of 929 g....Ch. 2 - A material will float on the surface of a liquid...Ch. 2 - Iron has a density of 7.87 g/cm3. If 52.4 g of...Ch. 2 - You want to make a rectangular box that weighs 2.0...Ch. 2 - Use the information in Table 2.8 to calculate the...Ch. 2 - Use the information in Table 2.8 to calculate the...Ch. 2 - 97. Indicate the number of significant digits in...Ch. 2 - Express each of the following as an “ordinary”...Ch. 2 - Write each of the following numbers in standard...Ch. 2 - For the measurement 0.003040 meters, indicate...Ch. 2 - Make the following conversions. 1 .25 in. to feet...Ch. 2 - On the planet Xgnu, the most common units of...Ch. 2 - You pass a road sign saying “New York 110 km.” If...Ch. 2 - Which of the following statements is (are) true? A...Ch. 2 - Suppose your car is rated at 45 mi/gal for highway...Ch. 2 - Prob. 106APCh. 2 - For a pharmacist dispensing pills or capsules, it...Ch. 2 - On the planet Xgnu, the natives have 14 fingers....Ch. 2 - For a material to float on the surface of water,...Ch. 2 - A gas cylinder having a volume of 10.5 L contains...Ch. 2 - Using Table 2.8, calculate the volume of 25.0 g of...Ch. 2 - Ethanol and benzene dissolve in each other. When...Ch. 2 - When 2891 is written in scientific notation, the...Ch. 2 - For each of the following numbers, if the number...Ch. 2 - For each of the following numbers, if the number...Ch. 2 - Prob. 116APCh. 2 - For each of the following numbers, by how many...Ch. 2 - For each of the following numbers, by how many...Ch. 2 - Express each of the following numbers in...Ch. 2 - Express each of the following as an “ordinary”...Ch. 2 - Prob. 121APCh. 2 - Prob. 122APCh. 2 - Prob. 123APCh. 2 - Draw a piece of lab glassware that can...Ch. 2 - Which distance is farther, 100 km or 50 mi?Ch. 2 - 1L= ________dm3= ________cm3= ________mLCh. 2 - The volume 0.250 L could also be expressed as mL.Ch. 2 - The distance 10.5 cm could also be expressed as m.Ch. 2 - Would an automobile moving at a constant speed of...Ch. 2 - Which weighs more, 0.001 g of water or 1 mg of...Ch. 2 - Which weighs more, 4.25 g of gold or 425 mg of...Ch. 2 - The length 500 m can also be expressed as nm.Ch. 2 - A perfect cube of unknown elemental composition...Ch. 2 - You are working on a project where you need the...Ch. 2 - Indicate the number of significant figures in each...Ch. 2 - Prob. 136APCh. 2 - Round off each of the following numbers to the...Ch. 2 - Prob. 138APCh. 2 - Prob. 139APCh. 2 - Prob. 140APCh. 2 - Prob. 141APCh. 2 - A rectangular solid measures 1.0 in by 2.4 mm by...Ch. 2 - Perform each of the following conversions, being...Ch. 2 - Perform each of the following conversions, being...Ch. 2 - The mean distance from the earth to (he sun ismi....Ch. 2 - Given that one metric ton = 1000 kg, how many...Ch. 2 - Convert the following temperatures to kelvins. 0°C...Ch. 2 - Carry out the indicated temperature conversions....Ch. 2 - For the masses and volumes indicated, calculate...Ch. 2 - A sample of a liquid solvent has a density of...Ch. 2 - An organic solvent has a density of 1.31 g/mL....Ch. 2 - A solid metal sphere has a volume of 4.2 ft3. The...Ch. 2 - A sample containing 33.42 g of metal pellets is...Ch. 2 - Prob. 154APCh. 2 - Prob. 155APCh. 2 - Prob. 156APCh. 2 - Prob. 157APCh. 2 - Prob. 158APCh. 2 - Complete the following table: Number Exponential...Ch. 2 - For each of the mathematical expressions given: a....Ch. 2 - The longest river in the world is the Nile River...Ch. 2 - Secretariat is known as the horse with the fastest...Ch. 2 - A friend tells you that it is 69. 1 °F outside....Ch. 2 - The hottest temperature recorded in the United...Ch. 2 - The density of osmium (the densest metal)...Ch. 2 - The radius of a neon atom is 69 pm, and its mass...
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- may you please show all steps! i am having a hard time understanding and applying in this format, thank you!arrow_forward10. Complete the substitution reaction of 2 pentanol with these reagents. Reagents & Reaction Conditions use practice sheet. Please write only major products, minor product like water, other gases are not required. Hint: In substitution of alcohol, we generally substitute OH group with Halogens like cl, Br, F using some reagent containing halogens. Ensure to add halogens to the same carbon number where you are removing OH from Examples Alcohols can be converted to Alkyl Halides with HX acids HBr H₂O HCI + H₂O HI + H₂O CH,CH₂OH + SOCI₂ CH,CH₂OH + PCI₁₂ A BBYJU'S CH CHCI + SO₂+ HCI CH₂CH CIP(OH), + HCI CH,CH₂OH + PCI CHCHCI + POCI + HCI CH,CH₂OH + PBr, CH,CH,Br + P(OH), + HBr 1. Reaction with HBr with 2 Pentanol 2.Reaction with HI with 2 pentanol © Byjus.com 3.Reaction with HCI+ZnCl,, with 2 pentanol (Zncl2 is catalyst no role) 4.Reaction with SOCI,, with 2 Pentanol 5.Reaction with PBr; or PCl, with 2 pentanolarrow_forward3. Is 2-methyl-2-propanol a primary, secondary, or tertiary alcohol? Write out the structures of 2-methyl-2-propanol and also any oxidation products of 2- methyl-2- propanol. If there is more than one oxidation product, give the structure of each of the products. 4. 2-Propanol is the IUPAC systematic name of this alcohol. It has a common name by which it is much better known (You'll see it in the grocery store or pharmacy). Give that common name 5. Aldehydes can be synthesized by the oxidation of. Please choose from below choices A. Primary alcohols B. Secondary alcohols C. Organic acids D. Inorganic acids 6. Tertiary alcohol Can undergo oxidation. yes or no. ? If yes then answer the product.arrow_forward
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