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
Earth or the galaxy. Im sorry if i’m wrong But this is my answer
Answer:Pindarus must decide whether to fight Mark Antony or flee
A medication for which the nurse will educate the caregivers of a child diagnosed with rheumatic fever is aspirin.
<h3>What is a drug?</h3>
A drug can be defined as a type of chemical substance (medication) that is designed and administered to provide wellness and healing to a sick person.
In this scenario, we can infer and logically deduce that a medication for which the nurse will educate the caregivers of a child that is diagnosed with rheumatic fever is aspirin such as salicylates.
Read more on drugs here: brainly.com/question/26984288
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