# Solving Geochemistry Homework: Log([Na+]/[H+])

• orangepipe
In summary, the conversation discusses a problem with plotting Log ([x]/[y]) vs Log[z] in the context of geochemistry homework. The equation given is 1/([Na]^2)*[H] = 10^109.4, and the individual is trying to rearrange it to have the form (x/y = c) in order to plot it as a horizontal line. However, it is pointed out that this is impossible and the individual may need to consider alternative approaches.
orangepipe

## Homework Statement

He, I'm trying to do some geochemistry homework, and I need to plot something as Log ([x]/[y]) vs Log[z], in the equation I'm having trouble with there's no z though so I just need to find what log([x]/[y]) is.

## Homework Equations

My equation is 1/([Na]^2)*[H] = 10^109.4

## The Attempt at a Solution

Not much but I sort of worked to:

-2log[Na] = log[H]+109.4I I just can't get rid of the -2 though, away from the Na, and join the Na and H so that it's Na / H = ans

I tried the year 10 stuff, squaring both sides, and on and on..

I feel like I'm missing some mathamatic tool. Or maybe something simple

(Also I'm plotting log([Na+]/[H+]) vs log [H4SiO4]

I have lots of chemical equations to plot, though in this one there is no [H4SiO4], so I just need to find what log([Na+]/[H+]) is equal to and then plot that as a horizontal line.

So I just need to re-arange so I have (x/y = something) Then I can just take the log

For more background I'm constructing a mineral stability diagram.)

Last edited:
There's a slight problem... it's impossible to do so.

You can't make it x/y=c where c is some constant, and since I don't know very much about chemistry or what you're trying to do, I can't offer any other suggestions as how to get around this problem or to correct you if you're doing something wrong.

## 1. What is the purpose of solving geochemistry homework?

Solving geochemistry homework helps students understand the principles and processes involved in the chemical composition and reactions of Earth's materials. It also allows them to apply their knowledge in real-world scenarios, such as predicting the behavior of pollutants or understanding the formation of minerals.

## 2. What does the term "log([Na+]/[H+])" mean in geochemistry?

The term "log([Na+]/[H+])" is known as the logarithmic ratio of sodium ion concentration to hydrogen ion concentration. It is used to represent the pH level in a solution, which indicates the acidity or basicity of a substance.

## 3. How do I solve a geochemistry homework problem using log([Na+]/[H+])?

To solve a geochemistry homework problem using log([Na+]/[H+]), you will need to first determine the concentrations of sodium ions and hydrogen ions in the given solution. Then, take the logarithm of the ratio of these concentrations to find the pH level. This can be done using a calculator or by referring to a logarithm table.

## 4. What are the units for log([Na+]/[H+]) in geochemistry?

The units for log([Na+]/[H+]) in geochemistry are typically in moles per liter (mol/L) or molarity (M). This is because the concentrations of ions are often measured in these units, and the logarithm of a ratio does not have a unit.

## 5. Is it important to solve geochemistry homework problems accurately?

Yes, it is important to solve geochemistry homework problems accurately as it helps develop a thorough understanding of the subject and allows for the application of knowledge in practical situations. Additionally, accuracy is crucial for obtaining correct results and interpretations in geochemistry research and analysis.

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