There are 485.386 grams in 4.50 moles of Ba(NO2)2.
So let’s look at the request more closely
According to the given question, there are 4.50 moles of Barium Nitrite (Ba(NO2)2) and we have to determine its weight in grams. To calculate the answer, we need to use the formula:
Weight = Number of Moles x Molar Mass
The molar mass of Ba(NO2)2 is (137.327 + 28.01352) g/mol = 205.34 g/mol. So, the weight of 4.50 moles of Ba(NO2)2 will be:
Weight = 4.50 moles x 205.34 g/mol = 924.03 g or 485.386 g for correct significant figures.
As per John Lubbock’s quote, “What we see depends mainly on what we look for.” Likewise, understanding chemical compounds and their mass compositions is a fundamental aspect of chemistry. Here are some interesting facts on the topic of molecular weights that might enhance your understanding:
- Molecular weight (MW) is a physical property commonly used in chemistry to determine the mass of a particular molecule.
- Molecular weight is also referred to as molecular mass, formula mass, or molecular weight average.
- The molecular weight is expressed in grams per mole (g/mol).
- Using the molecular weight, we can calculate the number of moles in a given mass of a substance, or the mass of a substance in a given number of moles.
- The molecular weight of a compound can be calculated by adding the atomic weights of all the atoms present in the compound.
- Atomic weights are found on the periodic table and are expressed in atomic mass units (amu).
- The atomic weights of most elements are not whole numbers because they represent the average weight of all the isotopes of that element present in nature.
- The molecular weight of a compound is useful in many chemical applications, such as determining the correct amount of reactants to use in a chemical reaction or calculating the concentration of a solution.
- There are various online molecular weight calculators available that can easily determine the molecular weight of any compound provided the chemical formula.
Here is a table showing the molecular weights of some common chemical compounds:
| Chemical Compound | Molecular Weight (g/mol) |
|---|---|
| Water (H2O) | 18.015 |
| Sodium Chloride (NaCl) | 58.443 |
| Glucose (C6H12O6) | 180.156 |
| Methane (CH4) | 16.043 |
| Ethanol (C2H5OH) | 46.07 |
In conclusion, understanding molecular weights is crucial to grasp various concepts of chemistry. With the help of formulae and calculators, we can easily calculate the molecular weight of any substance.
Answer in video
The video explains how to convert moles of a substance to grams using the molar mass. The molar mass is obtained by adding the masses of all elements from the periodic table. To convert moles to grams, multiply the moles by the molar mass, and to convert grams to moles, divide the grams by the molar mass. Units must be canceled out to achieve the correct result.
On the Internet, there are additional viewpoints
Therefore, there are 1031.85 grams in 4.50 moles of Ba(NO2)2 .
number of moles (n) = 4.50 moles
mass (m) = n×M [This is what you are trying to find]
molar mass (M) = ?
Your first step is to find out what is the molar mass (M) of Ba(NO2)2.
To find a molar mass of a compound, break the compound up into component parts so you could see what elements are involved.
If you break Ba(NO2)2 up, you can clearly see that it is composed of Ba, N and O.
You got to find the molar mass of each elements involved. You can identify the molar mass straight away if you look into the periodic table.
Ba = 137.3gmol−1
N = 14.0×2 because there is a number 2 after the closing bracket so 28.0gmol−1
O = There are 2 O atoms inside the bracket and doubled because of the 2 outside the closing bracket, so there are 4 O atoms altogether. 16.0gmol−1×4=64.0gmol−1
So to get the molar mass of Ba(NO2)2, add the molar mass of the elements up. 137.3+28.0+64.0 and that will give you 229.3gmol−1. Therefore the molar mass of Ba(NO2)2 is 229.3gmol−1.
n = 4.50 moles
m = ?
M = 2…
Furthermore, people are interested
Also question is, How many grams are in 4.5 moles?
Response: There are 134.5 grams in 4.5 moles of Li2O (lithium oxide).
Additionally, How many grams are in BA NO2 2?
Response will be: 229.35 g/mol
As the question provides us with the chemical formula of the compound ( B a ( N O 2 ) 2 ), we know it is made of 1 barium atom, 2 nitrogen atoms, and 4 oxygen atoms. By referring to a periodic table, we can obtain the atomic masses for each of these elements. The molar mass is 229.35 g/mol.
How many grams are there in 4 moles of NO2? 4 moles of oxygen are present in = 246×4 = 92g of NO2.
Subsequently, How many grams are in 4.5 moles of NAF? Response: Conclusion: The mass of 4.5 moles of sodium fluoride is 189g.