Answer:
1000 g
Explanation:
d = m/v
We are given d: 10g/cm3
and v: 100cm3
Plug them into the equation to get 10 = m/100
Then, cross multiply 10x100 to get mass which is: 1000g
An example is when on a seesaw if a kid is on one side and an adult is on the other then it is unbalanced because the adult weighs more
Answer:
See Explanation
Explanation:
Given
(a) to (d)
Required
Determine whether the given parameters can calculate the required parameter
To calculate either Density, Mass or Volume, we have



(a) 432 g of table salt occupies 20.0 cm^3 of space
Here, we have:


The above can be used to calculate Density as follows;



(b) 5.00 g of balsa wood, density of balsa wood : 0.16 g/cm^3
Here, we have:


This can be used to solve for Volume as follows:



(c) 32 cm^3 sample of gold density of 19.3 g/cm^3
Here, we have:


This can be used to calculate Mass as follows:



(d) 150 g of iron, density of Iron = 79.0 g/cm^3
Here, we have


This can be used to calculate volume as follows:


<em>Approximated</em>
Answer:
M(Fe₂O₃) = 159.70 g/mol
M(CO) = 28.01 g/mol
M(Fe) = 55.85 g/mol
M(CO₂) = 44.01 g/mol
Explanation:
We can calculate the molar mass of a compound by summing the molar masses of the elements that form it.
Fe₂O₃
M(Fe₂O₃) = 2 × M(Fe) + 3 × M(O) = 2 × 55.85 g/mol + 3 × 16.00 g/mol = 159.70 g/mol
CO
M(CO) = 1 × M(C) + 1 × M(O) = 1 × 12.01 g/mol + 1 × 16.00 g/mol = 28.01 g/mol
Fe
M(Fe) = 1 × M(Fe) = 1 × 55.85 g/mol = 55.85 g/mol
CO₂
M(CO₂) = 1 × M(C) + 2 × M(O) = 1 × 12.01 g/mol + 2 × 16.00 g/mol = 44.01 g/mol