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Sup_open~study
The density of a particular rock is 1.2073 g/cm(3) a. How many grams of the rock are contained in a 1044.55-cm(3) sample of the rock? b. How many cm(3) will be occupied by 278.816 g of the rock?
i have no idea what to do :(
a) 1.2073g/cm^3=mass in gram/1044.55cm^3
b) 1.2073g/cm^3=278.816 g /volume in cm^3
hmm no. mass=1.2073*1044.55 =1261.085g
i'm sorry i have no idea on how to do this :(
density=mass/volume If u know the values of density and volume and want to find the value of mass u hav to multiply the values of density and volume. mass=density*volume If u know the values of density and mass and want to find the value of volume u hav to divide the value of mass by the value of density . volume=mass/density Is it clear?
were is the volume at ???
i mean how would i find the values of density ???
If u know the values of mass and volume and want to find the value of density u hav to divide the value of mass by the value of volume density=mass/volume
i don't know the values of mass and value shood there be a chart telling you what they are ???
thank you for your help i will try to go before school tomorrow and ask for some help i have a horrible chem teacher pretty much the whole class is failing her including me xD
in the a)part of the question u r asked to find the value of mass. the values of density and the volume are given to u. density=1.2073 g/cm^3 volume=1044.55cm^3 To find the value of mass use mass=volume*density =1044.55cm^3*1.2073 g/cm^3 in the b)part of the question u r asked to find the value of volume. the values of density and the mass are given to u. density=1.2073 g/cm^3 mass=278.816 g To find the value of mass use volume=mass/density =278.816 g/1.2073 g/cm^3