# Tag Info

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### Formaldehyde concentration checking in furniture

Formaldehyde should not be detectable, let alone recognizable, at ~4 ppb [1]. It is strong, but not that strong. I also wouldn't really describe the smell of formaldehyde as "woody." The &...
• 918

### Applying Conversion Factors

First you must calculate the density of the 4.35 g of mercury. $Density = \frac{Mass}{Volume}$ $Density= \frac{4.53 g}{0.300 mL} =15.1 g/mL Hg$ So, 1 mL of mercury weighs 15.1 g. This can be written ...

### Applying Conversion Factors

Here the conversion factor would be 0.300 ml per 4.53 g of mercury (0.300mL/4.53g). The unknown is a volume of mercury, and your initial value would be the given 120.0 g of mercury, giving the ...

### What is the chemistry underlying chlorine recommendations in spa water care guides for UV/Ozone pools?

You do not really need to understand the chlorination chemistry for proper dosing. What you need to know is: recommended concentrations of active chlorine (the link or search) in $c_0\ \pu{[mg/L]}$. ...
• 43.3k
Since aluminum will oxidize rapidly in air, reproducing any removed $\ce{Al2O3}$ layer, consider plating the aluminum parts with a material easier to bake out. Electroplate nickel onto the aluminum ...