Answer:
They are the smallest units of matter
Explanation:
Atom are the basic units of a chemical element; the smallest unit of an element that retains the properties of an element
First, we must know that the hydronium ion is formed when a water molecule accepts a hydrogen ion. Therefore, the hydronium ion concentration is equivalent to the hydrogen ion concentration. Furthermore, the equation relating pH and hydrogen ion concentration is:
pH = -log[H+]
4.33 = -log[H+]
[H+] = 4.68 x 10⁻⁵ M
The concentration of hydronium ions is 4.68 x 10⁻⁵ M
<u>Answer:</u> Moles of iron for the given amount is 17.90 moles.
<u>Explanation:</u>
We are given 1 kg of iron and we need to find the moles of it. To calculate the moles, we use the following equation:
Mass of iron given = 1kg = 1000 grams (Conversion Factor: 1 kg = 1000g)
Molar mass of iron = 55.85g/mol
Putting values in above equation, we get:
Hence, moles of iron for the given amount is 17.90 moles.
Answer:
i think it's C or D.
Explanation:
but if I had to choose i would pick D. sorry if it's wrong. but i hope it's right.