can anybody give me the density of arsenic oxide at STP

is this the correct formula

volume = mass/ density

thanks

Yes, but if you want the density, it is density = mass/volume.

The number I have seen floating around on this board is 17.8 g/L but the density of a gas and the density of a solid are not the same. The density of a gas is both termperature and pressure dependent. I assume the end goal is to arrive at an empirical formula and a molecula formula. I have also seen the numbers 0.927 and 0.702 floating around. One question I have seen is asking me to help determine the formula from the density. It is easier to do with the grams, in my opinion.

To find the density of a substance at STP (Standard Temperature and Pressure), you need the mass and volume of the substance. In the case of arsenic oxide, if you already know the mass, you can use the formula density = mass/volume. However, in order to give you the density of arsenic oxide at STP specifically, I would need the specific mass and volume values at that particular condition.

As for the numbers you mentioned (17.8 g/L, 0.927, and 0.702), those may be the densities of arsenic oxide under different conditions, but without further context, it is difficult to say for sure. If you have the mass and volume values at STP, you can plug them into the formula density = mass/volume to find the answer.