Can someone please help with filling this out? it is not an assignment.
The concentration of hydroxide can influence metallic complexes in water and require monitoring, excess fluoride can have adverse health effects Phosphate values above 0.1 mg/L can lead to eutrophication of water ways and values above 600 mg/L sulphate in drinking water can lead to catharsis.
Having wreaked havoc in the research laboratory and on the insistence of Dr Gibbs, Dr Entropy departed, and went to work for the water authority instead. The water authority makes sure drinking water and water ways are kept healthy by constant monitoring. In his new position Dr Entropy is in charge of monitoring levels of hydroxide, fluoride, sulphate, phosphate and carcinogenic compounds such as methanal commonly known as formaldehyde.
Q7. The reactivity of hydroxide (OH-), methanal (HCHO) and fluoride (F-) can be best described by examining their structures. Draw the electron dot structures AND the Lewis structures of hydroxide, methanal and fluoride making sure to account for all charges.
Note: in methanal the carbon atom is directly connected to all the other atoms.
ANSWER:
Q8. Sulfate and phosphate are polyatomic anions found in many ionic salts that may dissolve in water.
(a) Draw the Lewis structures of water, sulfate, and phosphate, making sure to include any formal charges on atoms. Note that phosphorus and sulfur from row 3 of the periodic table do not obey the octet rule – they will end up sharing 10, and 12 electrons respectively.
(b) What shape are each of these molecules according to VSPER?
ANSWER:
WATER: SULFATE: PHOSPHATE:
Shape: Bent Shape: Tetrahedral Shape: Tetrahedral
Q9. Water is a polar molecule, which is critical to its solvent properties. The electronegativity values, , are 2.1 for hydrogen and 3.5 for oxygen. Label your Lewis structure of the water molecule to indicate which atom(s) have a partial positive charge (+) and which a partial negative charge (-).
ANSWER:
The concentration of hydroxide can influence metallic complexes in water and require monitoring, excess fluoride can have adverse health effects Phosphate values above 0.1 mg/L can lead to eutrophication of water ways and values above 600 mg/L sulphate in drinking water can lead to catharsis.
Having wreaked havoc in the research laboratory and on the insistence of Dr Gibbs, Dr Entropy departed, and went to work for the water authority instead. The water authority makes sure drinking water and water ways are kept healthy by constant monitoring. In his new position Dr Entropy is in charge of monitoring levels of hydroxide, fluoride, sulphate, phosphate and carcinogenic compounds such as methanal commonly known as formaldehyde.
Q7. The reactivity of hydroxide (OH-), methanal (HCHO) and fluoride (F-) can be best described by examining their structures. Draw the electron dot structures AND the Lewis structures of hydroxide, methanal and fluoride making sure to account for all charges.
Note: in methanal the carbon atom is directly connected to all the other atoms.
ANSWER:
Q8. Sulfate and phosphate are polyatomic anions found in many ionic salts that may dissolve in water.
(a) Draw the Lewis structures of water, sulfate, and phosphate, making sure to include any formal charges on atoms. Note that phosphorus and sulfur from row 3 of the periodic table do not obey the octet rule – they will end up sharing 10, and 12 electrons respectively.
(b) What shape are each of these molecules according to VSPER?
ANSWER:
WATER: SULFATE: PHOSPHATE:
Shape: Bent Shape: Tetrahedral Shape: Tetrahedral
Q9. Water is a polar molecule, which is critical to its solvent properties. The electronegativity values, , are 2.1 for hydrogen and 3.5 for oxygen. Label your Lewis structure of the water molecule to indicate which atom(s) have a partial positive charge (+) and which a partial negative charge (-).
ANSWER:
1 Answer
AS you know, there is a difficulty writing Lewis structures on this site....
Explanation:
For formaldehyde, a NEUTRAL beast...
Fluoride has 8 valence electrons, and 2 inner core electrons, 10 electrons in total, and since
For water the oxygen bears 2 lone pairs and 2 bonding pairs..
Sulfate and phosphate are both tetrahedral to a first approx...
The structures of water, sulfate, and phosphate, are ALL based on a tetrahedron...for water
And continuing with water, we gots polarity, i.e.
ALL I am doing is assigning formal charge on the basis of the atomic number...according to some simple rules.
If there is a specific issue and I have not addressed a question, fire away, and someone will help you.
