No, because they have different volumes.
Yes, because the number of moles is not dependent on the mass or the volume.
Yes, because the number of moles is only dependent on the mass per unit volume.
Answer: Yes, it is possible for each samples to contain 1 mole of a substance because the number of moles are not dependent on the mass or the volume.
Explanation:
The formula for the number of moles is given by:
As, the masses of 2 samples are different, so the number of moles will be dependent only on the molar masses of the samples.
Volume has no effect on the number of moles.
Answer:
3?
Explanation:
Answer:
B has 3 atoms
trust me have done problems like these
a. True
b. False
False.
Solubility is not a chemical property but rather it is a physical property. A physical property is one that can be observed or measured and does not change the composition or identity of a substance in the process.
When a substances dissolves, this is a change of its physical state and it is mostly reversible. For example, salt can dissolve in water to form a solution called brine. This does not alter the chemical nature of salt. When the water evaporates, salt is left behind in its original state or form. In other words, that was a physical change and it was completely reversible.
The concentration of H₃O⁺ in a buffer system formed by 0.30 M HCOOH and 0.20 M HCOONa is 2.5 × 10⁻⁴ M.
We have a buffer system formed by 0.30 M HCOOH and 0.20 M HCOONa.
We can calculate the pH of the buffer using Henderson-Hasselbach's equation.
Given the pH is 3.6, we can calculate the concentration of H₃O⁺ using the following expression.
The concentration of H₃O⁺ in a buffer system formed by 0.30 M HCOOH and 0.20 M HCOONa is 2.5 × 10⁻⁴ M.
Learn more: brainly.com/question/13564840
Fill the blanks
Answer:
Explanation:
In ions, protons are never taken or given. Only the number of electrons are changed
Br^1- gains 1 electron, so the number of electrons increases from 35 to 36. No protons are taken away, to the number of protons and the atomic number of Br1- is still 35, and the number of neutrons is still 45.