The answer is true. I might be wrong
1. Adjustment knob
2.arm
3. Diaphram
4. Base
5. Light source
6. Tube
7. Stage clips
8. Objectives
9. revolving nose piece
10. eye piece
11. Stage
Answer:
The answer to your question is 6.0M, I know that you said it was not the answer, but it is. Check the significant figures.
Explanation:
Data
Molarity = ?
volume of HCl = 50 ml
volume of NaOH = 4 M
volume = 75 ml
Balanced chemical reaction
HCl + NaOH ⇒ NaCl + H₂O
Process
1.- Calculate the moles of NaOH
Molarity = moles/volume
moles = Molarity x volume
moles = 4 x 0.075
moles = 0.3 of NaOH
2.- Use proportions to calculate the moles of HCl
1 mol of NaOH ----------------- 1 mol of HCl
0.3 moles of NaOH ---------- x
x = (0.3 x 1)/1
x = 0.3 moles of HCl
3.- Calculate the molarity of HCl
Molarity = 0.3/0.05
Molarity = 6.0 M
Answer:Number of proton present in the nucleus of an atom of sulfur is 16.
Explanation:
Protons, neutrons and electrons are subatomic particles of an atom.
Atomic number of an atom is equal to the total number of protons present in the nucleus of an atom.
Z = total number of protons
Atomic mass of an atom is defined as sum of the number of protons and neutrons present in the nucleus of an atom.
In neutral atom there are equal number of protons and electron.
A = number of proton + number of neutrons
According to question, there are 16 electrons in neutral atom of Sulfur.
in a neutral atom:
Number of electrons = Number of protons = 16
Number of proton present in the nucleus of an atom of sulfur is 16.
1 micrometer is equal to 10⁻⁶m so the correct answer is <span>A.) 0.000001 meter</span>
