10. it will take 14 of 2 liter bottles to fill 28kg of water
11. The sample is made of lead
12. mass of air=5.57g/L
13. mass of He= 0.1074g
What is Density?
Density can be defined as the mass of a unit volume of any material or substance.
With reference to the questions in the picture
10. volume= 2liters
mass= 28kg
density=mass/volume
density of water=1g/ml
*converting 28kg to grams= 28000g
volume= mass/density
v= 28000/1
v=28000ml
since it is a two liter bottle bottle, we (28000/2) = 14000ml
which is same as 14 litres.
it will take 14 of 2 liter bottles to fill 28kg of water.
11. mass= 34.05
change in volume= 3.3ml
density= mass/ volume
density= 34.05/3.3
density= 10.32 g/cm^3
The sample is made of lead because lead has the closest value in density
12. mass of air= 1.28* (4.35)
mass of air=5.57g/L
13. mass of He= 0.179g/L * (600/1000)L
mass= 0.179* 0.6
mass of He= 0.1074g
In conclusion, density is equals to mass divided by the volume,
Learn more about density at: brainly.com/question/17780219
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