When 10.8 g of Silver was reacted with Sulfur, 12.4 grams of product was produced (there was only one product). What is the empi
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The mass percent of oxygen in Nickel()sulfate is
percent.
At first, we look up the atomic masses for the element from the periodic table.
The atomic masses are found to be:
- Ni is
- S is
- O is
Next, we determine how many grams of each element are present in one mole of
of Ni
of S
of O
The mass of one mole is:
So, The mass percent of oxygen
percent.
To learn more about Mass percent, refer to:
The molarity of the acid is 0.086 00 mol/L.
HC₂H₃O₂ + NaOH → NaC₂H₃O₂ + H₂O
Since 1 mol of acid reacts with 1 mol of base, we can use the formula
M₁V₁ = M₂V₂
M₁ = ?; V₁ = 50.00 mL
M₂ = 0.1000 mol/L; V₂ = 43.00 mL
M₁ = M₂ ×
= 0.1000 mol/L × 
= 0.086 00 mol/L
HC₂H₃O₂ + NaOH → NaC₂H₃O₂ + H₂O
Since 1 mol of acid reacts with 1 mol of base, we can use the formula
M₁V₁ = M₂V₂
M₁ = ?; V₁ = 50.00 mL
M₂ = 0.1000 mol/L; V₂ = 43.00 mL
M₁ = M₂ ×