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
When Eleanor Roosevelt says, "There is such a thing as going through the world blindfolded. I have known people who were quite unconscious of the play of the sun and shadow on the hills," she means people can fail to recognize the beauty in the world. This means that these people rarely take advantage of opportunities in life.
The wife of President Franklin D. Roosevelt, Eleanor Roosevelt was the first lady of the United States of America from 1933 to 1945. During this tenure, Roosevelt championed poverty alleviation, access to education and civil rights as well as travelled to the European and Pacific front lines, when the world was engaged in World War II.
To learn more about Eleanor Roosevelt, click
brainly.com/question/370460
#SPJ4
Answer:
12 may be the answer also there is a possibility od 15 but more likeltly its going to be 12
Sorry I don’t know that language
The Texas governor who worked for public support of "bread bonds" was Miriam Amanda Ferguson.
<h3>Who is
Miriam Amanda Ferguson?</h3>
Miriam Amanda Ferguson was an American politician who was born on the 13th of June, 1875 in Bell County, Texas, United States of America and she died on the 25th of June, 1961 in Austin, Texas, United States of America.
Miriam was elected to serve as the governor of Texas on two occasions during which supported many "New Deal" initiatives such as "bread bonds" along with federal funds to provide public support and address their welfare needs.
Read more on Miriam Amanda here: brainly.com/question/1101356
