Answer:
122.7 mL
Explanation:
Step 1: Given data
- Volume of water: 100.0 mL
- Mass of the piece iron (m): 178.5 g
- Density of iron (ρ): 7.87 g/mL
Step 2: Calculate the volume of the piece of iron
Density is equal to the mass of the piece divided by its volume.
ρ = m/V
V = m/ρ
V = 178.5 g/(7.87 g/mL) = 22.7 mL
Step 3: Calculate the volume of the mixture
The volume of the mixture is equal to the sum of the volume of water and the iron piece.
100.0 mL + 22.7 mL = 122.7 mL
To calculate the atomic mass of a single atom of an element, add up the mass of protons and neutrons. Example: Find the atomic mass of an isotope of carbon that has 7 neutrons. You can see from the periodic table that carbon has an atomic number of 6, which is its number of protons.
Hope this helps :)
Answer:
16 cm
Explanation:
Because when you look at the ruler, it shows the length as 16 cm