P Block - Group 14 Questions and Answers

Which of the following gives the correct electronic configuration for the outermost
energy level and subshell for the element tin?
4d6
5s²
40
4d8
5p²
Inorganic Chemistry
P Block - Group 14
Which of the following gives the correct electronic configuration for the outermost energy level and subshell for the element tin? 4d6 5s² 40 4d8 5p²
According to Schaie, an individual in the responsible stage is capable of
using knowledge to pursue goals.
Solving practical problems associated with responsibilities to others.
reorganizing his/her life and intellectual energies around meaningful pursuits.
acquiring knowledge for its own sake.
Inorganic Chemistry
P Block - Group 14
According to Schaie, an individual in the responsible stage is capable of using knowledge to pursue goals. Solving practical problems associated with responsibilities to others. reorganizing his/her life and intellectual energies around meaningful pursuits. acquiring knowledge for its own sake.
In which of the following are both members of the pair polysaccharides containing a-1,4 glycosidic bonds and a-1,6 glycosidic bonds to branches?

Glycogen and amylopectin
Cellulose and amylopectin
Amylose and cellulose
Glycogen and amylose
I DON'T KNOW YET
Inorganic Chemistry
P Block - Group 14
In which of the following are both members of the pair polysaccharides containing a-1,4 glycosidic bonds and a-1,6 glycosidic bonds to branches? Glycogen and amylopectin Cellulose and amylopectin Amylose and cellulose Glycogen and amylose I DON'T KNOW YET
In which of the following are both members of the pair polysaccharides containing a-1,4 glycosidic bonds and a-1,6 glycosidic bonds to branches?

Glycogen and amylopectin
Cellulose and amylopectin
Amylose and cellulose
Glycogen and amylose
I DON'T KNOW YET
Inorganic Chemistry
P Block - Group 14
In which of the following are both members of the pair polysaccharides containing a-1,4 glycosidic bonds and a-1,6 glycosidic bonds to branches? Glycogen and amylopectin Cellulose and amylopectin Amylose and cellulose Glycogen and amylose I DON'T KNOW YET
A neutral atom has the following electron configuration:
[Ne] 3s²3 p²
What is the chemical symbol for the atom?
How many electrons does the atom have?
How many 3p electrons are in the atom?
Inorganic Chemistry
P Block - Group 14
A neutral atom has the following electron configuration: [Ne] 3s²3 p² What is the chemical symbol for the atom? How many electrons does the atom have? How many 3p electrons are in the atom?
What is the total number of valence electrons in the Lewis structure of SiC14?
electrons
Draw a Lewis structure for SiC14.
Inorganic Chemistry
P Block - Group 14
What is the total number of valence electrons in the Lewis structure of SiC14? electrons Draw a Lewis structure for SiC14.
Mass of copper wire
Mass of filter paper + product
Mass of filter paper
Mass of copper (II) oxide
1. Using your data, calculate how many moles of copper you used in reaction 
2. Look carefully at the three reactions you have performed. What is the mole ratio
between copper in reaction 1 and the copper (II) oxide produced in reaction 3? Using
that information, calculate the theoretical yield of copper (II) oxide using stoichiometry.
(Assume copper is the limiting reagent.)
Inorganic Chemistry
P Block - Group 14
Mass of copper wire Mass of filter paper + product Mass of filter paper Mass of copper (II) oxide 1. Using your data, calculate how many moles of copper you used in reaction 2. Look carefully at the three reactions you have performed. What is the mole ratio between copper in reaction 1 and the copper (II) oxide produced in reaction 3? Using that information, calculate the theoretical yield of copper (II) oxide using stoichiometry. (Assume copper is the limiting reagent.)
Click the "draw structure" button to launch the drawing utility.
Draw a Lewis structure (including all lone pair electrons) for the species CH3. Place the overall
charge on the central atom.
Inorganic Chemistry
P Block - Group 14
Click the "draw structure" button to launch the drawing utility. Draw a Lewis structure (including all lone pair electrons) for the species CH3. Place the overall charge on the central atom.
What is the wavelength of an electromagnetic wave that has a frequency of 7.80 x 1014 Hz in a vacuum? (The speed of light in a vacuum is 3.00 × 108 m/s.)
A. 1.28% 10^-15 m
B. 2.34% 10^23 m
C. 2.60% 10^6 m
D. 3.85 x 10^-7 m
Inorganic Chemistry
P Block - Group 14
What is the wavelength of an electromagnetic wave that has a frequency of 7.80 x 1014 Hz in a vacuum? (The speed of light in a vacuum is 3.00 × 108 m/s.) A. 1.28% 10^-15 m B. 2.34% 10^23 m C. 2.60% 10^6 m D. 3.85 x 10^-7 m
A gaseous mixture containing 1.5 mol Ar and 3.5 mol CO₂ has a total pressure of 9.5 atm. What is the partial pressure of CO₂?
22 atm
1.8 atm
9.5 atm
6.7 atm
2.9 atm
Inorganic Chemistry
P Block - Group 14
A gaseous mixture containing 1.5 mol Ar and 3.5 mol CO₂ has a total pressure of 9.5 atm. What is the partial pressure of CO₂? 22 atm 1.8 atm 9.5 atm 6.7 atm 2.9 atm
There are two binary compounds of mercury and oxygen. Heating either of them results in the decomposition of the compound, with oxygen gas escaping into the atmosphere while leaving a residue of pure mercury. Heating 0.3249 g of one of the compounds leaves a residue of 0.3009 g. Heating 0.2086 g of the other compound results in a mass loss of 0.008 g.

 a Determine the empirical formula of the first compound. Formula: 

b Determine the empirical formula of the second compound. Formula:
Inorganic Chemistry
P Block - Group 14
There are two binary compounds of mercury and oxygen. Heating either of them results in the decomposition of the compound, with oxygen gas escaping into the atmosphere while leaving a residue of pure mercury. Heating 0.3249 g of one of the compounds leaves a residue of 0.3009 g. Heating 0.2086 g of the other compound results in a mass loss of 0.008 g. a Determine the empirical formula of the first compound. Formula: b Determine the empirical formula of the second compound. Formula:
Ammonia, NH3, reacts with the hypochlorite ion, OCI- to produce hydrazine, N2H4.
2NH3 + OCI- → N2H4 + CI ¯ + H₂O When 3.88 g of NH3 reacts with excess hypochlorite and the percent yield of hydrazine is 72.7%. How many gram of hydrazine is produced?
Inorganic Chemistry
P Block - Group 14
Ammonia, NH3, reacts with the hypochlorite ion, OCI- to produce hydrazine, N2H4. 2NH3 + OCI- → N2H4 + CI ¯ + H₂O When 3.88 g of NH3 reacts with excess hypochlorite and the percent yield of hydrazine is 72.7%. How many gram of hydrazine is produced?
1