Calculate the number of cations and anions in each of the following compounds: (a) 0.764 g of CsI, (b) 72.8 g of K 2 Cr 2 O 7 , (c) 6.54 g of Hg 2 (NO 3 ) 2 .
Calculate the number of cations and anions in each of the following compounds: (a) 0.764 g of CsI, (b) 72.8 g of K 2 Cr 2 O 7 , (c) 6.54 g of Hg 2 (NO 3 ) 2 .
Calculate the number of cations and anions in each of the following compounds: (a) 0.764 g of CsI, (b) 72.8 g of K2Cr2O7, (c) 6.54 g of Hg2(NO3)2.
(a)
Expert Solution
Interpretation Introduction
Interpretation:
From the given mass of CsI, the number of cations and anions in CsI has to be calculated.
Concept Introduction:
Molar mass:
Molar mass of a molecule can be calculated from its molecular formula by taking the sum of atomic masses of all the elements present in it.
Conversion formula for mass of a molecule into number moles,
Numberofmoles=MassingramsMolarmass
Answer to Problem 3.121QP
The number of iodide ions is 1.77×1021I−ions
The number of cesium ions is 1.77×1021I−ions
Explanation of Solution
Given,
Mass of CsI is 0.764g
The number of cesium ions and iodide ions are calculated using molar mass of CsI and Avogadro number as,
0.764 g CsI×1 mol CsI259.8 g CsI×6.022×1023CsI1molCsI×1Cs+ion1CsI=1.77×1021Cs+ions
The ratio of cesium ion and iodide ion is 1:1. Hence, the number of iodide ions 1.77×1021I−ions and number of cesium ions is 1.77×1021I−ions
(b)
Expert Solution
Interpretation Introduction
Interpretation:
From the given mass of K2Cr2O7, the number of cations and anions in K2Cr2O7 has to be calculated.
Concept Introduction:
Molar mass:
Molar mass of a molecule can be calculated from its molecular formula by taking the sum of atomic masses of all the elements present in it.
Conversion formula for mass of a molecule into number moles,
Numberofmoles=MassingramsMolarmass
Answer to Problem 3.121QP
The number of chromate ions is 1.49×1023Cr2O72−ions
The number of potassium ion is 2.98×1023K+ions
Explanation of Solution
Given,
Mass of K2Cr2O7 is 72.8g
The number of potassium ions and chromate ions are calculated using molar mass of K2Cr2O7 and Avogadro number as,
72.8 g K2Cr2O7×1 mol K2Cr2O7294.2 g K2Cr2O7×6.022×1023K2Cr2O71molK2Cr2O7×2K+ion1K2Cr2O7=2.98×1023K+ions
The ratio of potassium ion and chromate ion is 2:1 . Hence, the number of chromate ions is 1.49×1023Cr2O72−ions and number of potassium ion is 2.98×1023K+ions
(c)
Expert Solution
Interpretation Introduction
Interpretation:
From the given mass of Hg2(NO3)2, the number of cations and anions in Hg2(NO3)2 have to be calculated.
Concept Introduction:
Molar mass:
Molar mass of a molecule can be calculated from its molecular formula by taking the sum of atomic masses of all the elements present in it.
Conversion formula for mass of a molecule into number moles,
Numberofmoles=MassingramsMolarmass
Answer to Problem 3.121QP
The number of nitrate ions is 1.50×1022NO3−ions
The number of mercury ion is 7.50×1021Hg22+ions
Explanation of Solution
Given,
Mass of Hg2(NO3)2 is 72.8g
The number of mercury ions and nitrate ions are calculated using molar mass of Hg2(NO3)2 and Avogadro number as,
6.54g Hg2(NO3)2×1 mol Hg2(NO3)2294.2 g Hg2(NO3)2×6.022×1023Hg2(NO3)21molHg2(NO3)2×1Hg22+ion1Hg2(NO3)2=7.50×1021Hg22+ions
The ratio of mercury ions and nitrate ions is 1:2 . Hence, the number of nitrate ions is 1.50×1022NO3−ions and number of mercury ion is 7.50×1021Hg22+ions
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3. 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.
Finish the reactions
hand written please
Part A
Identify each alcohol as primary, secondary, or tertiary
Drag the appropriate items to their respective bins.
CH₂
H₂C-
-C-OH
HO
CH₂
Primary
Он
OH
CH₂
OH
CCH₂OH
CH₂
сн
Secondary
Tertiary
Reset Help
CH,CH₂
(CH)CHCH,OH CH,CH,CH,CCH,
CHOH
CH₂
Different types of alcohol groups
Alcohol and its reaction:
8. Combing two alcohol molecules below and completing the reaction with
Product .( Hint Reaction called etherification as ether is formed and name the
ether once you complete the reaction.
Hint.:
R-O-H+H-O-RR-O-R
Do the reaction:
CH₂OH + CH₂OH---→
+ H-O-H
9. Write the reaction of formation of alcohol from alkene by adding water:
Addition reaction also called hydration reaction as we are adding water
which occur always in presence of acid
Hint: Break the double bond and add H and OH if symmetrical then
add anywhere if unsymmetrical then follow Markovnikov rule H
should go to that double bone carbon which has more hydrogen
CH2=CH2 + H₂O-→
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Step by Step Stoichiometry Practice Problems | How to Pass ChemistryMole Conversions Made Easy: How to Convert Between Grams and Moles; Author: Ketzbook;https://www.youtube.com/watch?v=b2raanVWU6c;License: Standard YouTube License, CC-BY