Which is a molecule of phosphoric acid contains 3 atoms of hydrogen to every 4 atoms of oxygen. Could a compound containing 16 atoms of oxygen and 12 atoms of hydrogen be phosphoric acid? Explain.
Mr.Lee has 3/10 of his gross salary deducted for taxes. If Mr.Lee makes $900 a week, how much is deducted for taxes?
1. Yes, because the numbers are proportional.
2. 3/10=.3
.3*900=270
To determine if a compound containing 16 atoms of oxygen and 12 atoms of hydrogen could be phosphoric acid, we need to first understand the molecular formula of phosphoric acid.
Phosphoric acid is a triprotic acid, which means it can release three protons (H+) in an aqueous solution. Its molecular formula is H₃PO₄, indicating that it consists of three hydrogen atoms, one phosphorus atom, and four oxygen atoms.
Comparing the given compound with 16 atoms of oxygen and 12 atoms of hydrogen to the molecular formula of phosphoric acid, we can see that it does not match. The compound containing 16 atoms of oxygen and 12 atoms of hydrogen would need to have the molecular formula H₁₂O₁₆. However, in phosphoric acid, there are only four oxygen atoms. Therefore, the given compound cannot be phosphoric acid.
To calculate the amount deducted for taxes from Mr. Lee's $900 weekly salary, we need to know the percentage of his gross salary that is deducted. The question states that Mr. Lee has 3/10 of his gross salary deducted for taxes.
To find the amount deducted, we can use the formula:
Amount deducted for taxes = Percentage deducted / 100 * Gross salary
Substituting the given values:
Amount deducted for taxes = (3/10) / 100 * $900
To simplify the calculation, we can convert the fraction 3/10 to a decimal:
Amount deducted for taxes = 0.3 * $900
Now, we can calculate:
Amount deducted for taxes = $270
Therefore, $270 is deducted for taxes from Mr. Lee's $900 weekly salary.