Question

1. analyze the graph statistics to find the slope of the line for element 1. identify the units for the slope of the line on your graph. i need a hint slope of element 1 = a (units/units) choices: 55.8 12 119 65.4 mol g 207 28.1 63.6 27

Explanation:

To determine the slope for Element 1, we need to recall that the slope in a graph related to elements (likely a mass - moles graph) is given by the formula $\text{slope}=\frac{\text{mass (in g)}}{\text{moles (in mol)}}$, which is the molar mass of the element.

Step 1: Recall the concept of molar mass

The molar mass of an element is the mass of one mole of that element, and it has units of $\frac{\text{g}}{\text{mol}}$. So we are looking for a value that represents the molar mass of an element (since slope here is molar mass) and the units $\frac{\text{g}}{\text{mol}}$.

Step 2: Analyze the choices

Among the numerical values, 55.8 is the molar mass of iron (Fe) (in $\frac{\text{g}}{\text{mol}}$). The other numerical values do not correspond to the molar mass of a common element in the context of a typical graph - based slope calculation for elements (relating mass and moles). And the units for slope here should be $\frac{\text{g}}{\text{mol}}$ (since slope $=\frac{\text{mass (g)}}{\text{moles (mol)}}$).

Answer:

Slope of Element 1 $=\boldsymbol{55.8}\frac{\boldsymbol{\text{g}}}{\boldsymbol{\text{mol}}}$