just looking at the color of the flame --- qualitative
A qualitative measurement is just that- it measures the quality of something, or rather it's more of a physical observation. So say you were observing a sunflower. Yellow would be a qualitative measurement. The texture of the petals(smooth). All things that would qualify as sort of observations. Qualitative "measurement" actually uses no numbers at all.
A simple qualitative test is the flame test: barium has a pale/apple green color.
A green flame is due probable to copper.
to identify an unknown sample by its emission spectrum
The flame test is a simple method for quantitative analysis for some metals.
The flame test in analytical chemistry is only qualitative.
A flame test is a qualitative analysis technique used to identify the presence of specific elements based on the color of the flame produced. It is not typically used for quantifying the amount of the element present in a sample.
A hot flame is a qualitative measurement, as it describes the subjective perception of the flame's temperature based on sensory experience rather than a precise numerical value.
qualitative - smells of smoke, hot air from flame, flame is orange and blue at the bottom, flame moves around, [unscented candle - no smell], wick is burning and turning black. quantitative - sorry i don't have the answer. I'm looking for it myself :(
For one thing, atomic absorption equipment is basically a fancier version of flame emission equipment (I'm unaware of any instrument capable of doing AA that can't also do FE), and flame emission doesn't require you to change tubes every time you want to check for another element.
Colour of the flame would be one.
It is usually used for when one is trying to figure out the chemical make up of an unknown substance. Depending on what color the substance makes during a flame test will help you figure out what it is composed of.
The flame test was originally used as a qualitative analysis technique in chemistry to identify the presence of certain metal ions in a compound based on the color emitted by the flame when the compound is burned. This method is still used today in chemical analysis and identification of elements.
A qualitative measurement is just that- it measures the quality of something, or rather it's more of a physical observation. So say you were observing a sunflower. Yellow would be a qualitative measurement. The texture of the petals(smooth). All things that would qualify as sort of observations. Qualitative "measurement" actually uses no numbers at all.
In an unlit candle, the qualitative observations would be its solid wax structure, the presence of a wick, and the lack of a flame or melted wax.
No, sodium chloride is a very stable compound
unknown