# Blog

## What is the formula for concentration? Nazi concentration camp badges, primarily triangles, were part of the system of identification in German camps. They were used in the concentration camps in the German-occupied countries to identify the reason the prisoners had been placed there. The triangles were made of fabric and were sewn on jackets and trousers of the prisoners.

## What is mole triangle?

The mole triangle is not just a formulae relation between mole with mass, volume, and number of particles as we learned in schoolbooks, but is a deep concept used to learn the mole . The 4th International Conference on Research, Implementation, and Education of Mathematics and Science (4th ICRIEMS) AIP Conf. Proc.

## What does GFM stand for in chemistry?

When we are looking at compounds we need to add up the masses of all the elements in the chemical for- mula. This gives us the gram formula mass or GFM, where the GFM is the mass of one mole of a substance. expressed in grams.

## What are 3 ways to measure the concentration of a solution?

What are three ways to measure the concentration of a solution? Concentration can be expressed as percent by volume, percent by mass, and molarity.

## Is molarity the same as concentration?

Molar concentration (also called molarity, amount concentration or substance concentration) is a measure of the concentration of a chemical species, in particular of a solute in a solution, in terms of amount of substance per unit volume of solution.  ### How do you work out Mr?

To find the relative formula mass (M r) of a compound, you add together the relative atomic mass values (A r values) for all the atoms in its formula. Find the M r of carbon monoxide, CO. Find the M r of sodium oxide, Na 2O. The relative formula mass of a substance, shown in grams, is called one mole of that substance.

### Are GFM and molar mass the same?

Gramformula mass (GFM): the mass of the formula of a substance measured in grams. ... molar mass, molecular mass, or formula mass. The GFM equals the mass in grams of 1 mole of any substance.Feb 15, 2018

### How do you calculate concentration from moles and volume?

Concentration formula: To find the molar concentration of a solution, simply divide the total moles of solute by the total volume of the solution in liters.Mar 4, 2020

### How do you find final concentration?

Use the formula x = (c ÷ V) × 100 to convert the concentration (c) and volume (V) of the final solution to a percentage. In the example, c = 60 ml and V = 350 ml. Solve the above formula for x, which is the percentage concentration of the final solution.Jul 10, 2019

### What does the black triangle mean in German?What does the black triangle mean in German?

Black triangle. The black triangle was a badge used in Nazi concentration camps to mark prisoners regarded "asocial" and "arbeitsscheu" (work-shy).

### How do I set the volume and concentration in Tocris?How do I set the volume and concentration in Tocris?

Enter 10 into the Concentration box and select the correct unit (millimolar) Enter 10 into the Volume box and select the correct unit (milliliter) Tocris Bioscience has been supporting scientists since 1982!

### What units are used to measure concentration?What units are used to measure concentration?

The units for concentration can also be shown as g dm-3, but this means the same as g/dm3.

### What do the colors of the triangles mean?What do the colors of the triangles mean?

( 2) The colors of the triangles were as follows: red for political dissidents, green for criminals, purple for Jehovah’s Witnesses, blue for emigrants, brown for Gypsies, black for lesbians and other “anti-socials,” and pink for homosexual men.