q7. density is how much (mass or volume) there is per given size of a material. * mass volume q8. what is…
q7. density is how much (mass or volume) there is per given size of a material. * mass volume q8. what is the mass of water based on the following information? * mass of empty beaker: 120 grams mass of beaker and water: 170 grams 120 grams 50 grams 170 grams
Answer
Explanation:
Q7:
Density is defined as mass per unit volume. So it represents how much mass there is per given size (volume) of a material.
Q8:
The mass of water can be found by subtracting the mass of the empty beaker from the mass of the beaker and water. Let $m_{empty}$ be the mass of the empty beaker and $m_{total}$ be the mass of the beaker and water. Then the mass of water $m_w=m_{total}-m_{empty}$. $m_{empty} = 120$ grams and $m_{total}=170$ grams. So $m_w=170 - 120=50$ grams.
Answer:
Q7. mass Q8. 50 grams