Question

1. graph the function on the grid below.
2. if you have six molecules of co₂, how many oxygen atoms do you have?
3. zinc carbonate (znco₃) is composed of one zinc, one carbon, and three oxygen atoms. what is the total atomic mass of zinc carbonate?

variable definitions:
equation:

Explanation:

Step1: Analyze oxygen - atom count in $CO_2$

In one $CO_2$ molecule, there are 2 oxygen atoms.

Step2: Calculate oxygen - atom count for 6 molecules

If there are 2 oxygen atoms in 1 $CO_2$ molecule, for 6 molecules, we multiply the number of oxygen atoms per molecule by the number of molecules. So the number of oxygen atoms $n = 2\times6$.
$n=12$

Step3: Determine atomic masses of elements in $ZnCO_3$

The atomic mass of zinc ($Zn$) is approximately 65.38 g/mol, carbon ($C$) is approximately 12.01 g/mol, and oxygen ($O$) is approximately 16.00 g/mol.

Step4: Calculate total atomic mass of $ZnCO_3$

The formula for the total atomic mass $M$ of $ZnCO_3$ is $M = 1\times atomic\ mass\ of\ Zn+1\times atomic\ mass\ of\ C + 3\times atomic\ mass\ of\ O$.
$M=65.38+12.01 + 3\times16.00$
$M=65.38+12.01+48.00$
$M = 125.39$ g/mol

Answer:

1. 12
2. Variable definitions: Atomic mass of $Zn\approx65.38$ g/mol, atomic mass of $C\approx12.01$ g/mol, atomic mass of $O\approx16.00$ g/mol. Equation: $M = atomic\ mass\ of\ Zn+atomic\ mass\ of\ C+3\times atomic\ mass\ of\ O$, Total atomic mass = 125.39 g/mol