Mass number is equal to the sum of number of neutrons (neutral subatomic particle) and number of protons (positively charge particle).
Mass number =
Now, atomic number is same as the number of protons i.e. atomic of nitrogen is 7 . Thus, number of protons is also equal to 7.
Therefore,
Mass number =
=
Hence, mass number of nitrogen is equal to .
His net Worth is almost $2.04 billion ,but I don’t think this is chemistry lol
A mole of sodium chloride has mass 58.44 grams. You get that from adding the molar masses of sodium and chlorine, which are listed on the periodic table.
<span>58.44 g/mol * 4.40 mol = 257.1 or ≈ 257 grams with 3 significant figures</span>
Answer:
It is always less than the theoretical yield
Explanation:
For many chemical reactions, the actual yield is usually less than the theoretical yield. This is due to possible loss in the process or inefficiency of the chemical reaction.
The question is another language. Translation in English language is as following:
What are the common sensors that can be used to identify metal, gas or liquid?
Answer:
<u>Common sensors that can be used to identify metal, gas or liquid are as following:</u>
- Inductive Proximity Sensor: Inductive proximity sensors are able to detect metals only. It generates output signal or electrical signal when any metal object come nearby its sensing area.
- Handheld flammable gas detectors: they are commonly used to detect gas leakage such as natural gas lines, butane tanks, or any other combustible gas.
- Optical level sensors: this sensor is used to detect liquids including the interface between two immiscible liquids and the occurrence of sediments.