Ineed with my chemistry homework. show work 1) the density of tin (sn) is the 5.75 g/cm^3. how many cubic decimeters (dm^3) does 17.2 kg of sn occupy? 2) if half a liter (500 ml) of olive oil weights 425g, what is its density? 3) the density of silver is 10.5 g/cm^3. what is the mass of 0.987 dm^3 of silver ?

1. 17.2kg=17200g

so knowing that d=m/V, use V=m/d to calculate the volume

v=17200/5.75

and then devide by 1000 to convert cm3 to dm3 and the answer will be in dm3

2. d=m/v

v=0.5l

m=425g

so use the formula and you will get d=425/0.5=850g/l

3. use d=m/v again, but not before rewriting the formula for volume: m=vd and  convert dm3 to cm3

1dm3=1000cm3

so 0.987dm3 =987 cm3

now m=987cm3 * 10.5g/cm3 and the answer will be in grams

that tool would be a compass