What is the formula for Ammonium Sulfide?

In summary, we discussed the formulas for Ammonium Sulfide and Silver (I) Oxide and calculated the percentage composition for each element in the compounds. We also briefly touched on the complexity of the formula for Phosphorus Sulfide and the possibility of the formula for Mercury Oxide being HgO instead of Hg2O2.
  • #1
Quincy
228
0

Homework Statement


Write the formula for Ammonium Sulfide


Homework Equations


NH4^+ = ammonium

S^2- = Sulfur

The Attempt at a Solution



NH4^+2S
 
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  • #2
How many of each do you need to get something neutral?
Does 1 NH4 and 2 S have total charge 0?
 
  • #3
Quincy: final formula won't have charge inside. Could be you did OK, but ^+ are of no use here.

Try to format your formula properly using [ sub][ /sub] and [ sup][ /sup] tags (without spaces):

NH[ sub]4[ /sub][ sup]+[ /sup] = NH4+
 
  • #4

Homework Statement


Calculate the percentage composition of Silver (I) Oxide

Silver's atomic mass: 107.87

Oxygen's atomic mass: 16

The Attempt at a Solution



Molecular mass: 123.87

(107.87/123.87) * 100 = 87.08% = Percent composition for Silver

(16/123.87) * 100 = 12.92% = Percent composition for Oxygen
 
  • #5
You are half OK and half wrong. Approach is correct, but molar mass is wrong.

What is formula of the silver (I) oxide?
 
  • #6
Borek said:
You are half OK and half wrong. Approach is correct, but molar mass is wrong.

What is formula of the silver (I) oxide?

Ag2O?
 
  • #7
Yes, so what is the molar mass?
 
  • #8
molar mass = 231.74?

percent comp of Silver = (215.74/231.74) * 100 = 93.10%?

percent comp of Oxygen = (16/231.74) * 100 = 6.90%?
 
  • #9
3*ok
 
  • #10
P4S10 -- Phosphorus Sulfide?
Hg2O2 -- Mercury Oxide? -- and shouldn't the formula be HgO?...
 
  • #11
Check phosphorus sulfide article in wikipedia. Your answer is correct, but reality is much more complicated.

If Hg2O2 is HgO, same trick should be done to P4O10, converting it to P2O5. However, we know for sure that single molecule of these compounds is larger then its experimental formula shows.
 

Related to What is the formula for Ammonium Sulfide?

What is the purpose of writing formulas?

The purpose of writing formulas is to express complex mathematical or scientific relationships in a concise and organized manner. This helps to make the information more understandable and easier to use in calculations or experiments.

What are the basic elements of a formula?

The basic elements of a formula include variables, operators, and constants. Variables represent unknown quantities, operators perform mathematical operations, and constants are fixed numerical values.

How do you write a formula in scientific notation?

To write a formula in scientific notation, first identify the significant digits in the number. Then, move the decimal point to the right or left until there is only one non-zero digit to the left of the decimal point. Finally, multiply this number by 10 raised to the power of how many places the decimal point was moved.

What is the difference between a chemical formula and a mathematical formula?

A chemical formula is used to represent the types and quantities of atoms in a molecule, while a mathematical formula is used to express a relationship between variables using mathematical symbols and operations. Additionally, chemical formulas often use subscripts and coefficients to indicate the number of atoms, while mathematical formulas may use exponents or parentheses to show the order of operations.

How can writing formulas be beneficial in scientific research?

Writing formulas can be beneficial in scientific research because they provide a systematic and organized way to express complex relationships and data. They can also be used to make predictions and guide experiments, as well as facilitate communication and understanding among scientists working on the same research project.

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