Answer:
because they think they're entitled
Explanation:
I just explained it
What grade are u in ? ,are you okay?
Answer:
d. $2,943.72 is the total annual FICA tax for an annual salary of $38,480.
Explanation:
6.2% of the annual salary for the Social Security Tax, and 1.45% of the annual salary for the Medicare Tax. In total, FICA takes 7.65% of your annual salary as tax. $38,480 x 7.65% = $2,943.72.
Answer:
46, 39, 32
Explanation:
you just have to subtract 7 each time :)
The amount of grams of hydrogen that are in the water sample is;
3.985 g
<h3>Avogadro's number</h3>
We are given that;
Number of moles of oxygen in a sample of water = 12 × 10²³
- Now, the chemical formula of a molecule of water is H₂O. This means that for every 1 atom or molecule of oxygen, there must be 2 hydrogen atoms or molecules present.
Since Number of moles of oxygen in the sample is 12 × 10²³, then number of moles of hydrogen will be twice that = 2 × 12 × 10²³ = 24 × 10²³ moles
Now, molar mass of hydrogen is 1 g/mol and we know that;
Molar mass = Avogadro's number(6.023 × 10²³) moles
Thus;
6.023 × 10²³ moles = 1 g/mol
Thus; 24 × 10²³ moles of hydrogen = ( 24 × 10²³ × 1)/(6.023 × 10²³)
⇒ 3.985 g
Read more on Avogadro's number at; brainly.com/question/914267
