What is Molecular Weight?
The compound’s molecular weight is the weight of a single mole in a compound. Since weight is expressed in grams, that’s why the number of grams per mole is how molecular weight is provided.
A mole on the other hand is defined as an entity having a quantity of 6.0221415×1023 atoms, molecules or ions. The Avogadro constant number, 6.0221415×1023, however is a result of the number of atoms in 12 gram of carbon-12 isotope.
The molecular weight of various compounds varies according to their varied atoms, for example NaCl has 58.44 g/mol molecular weight whereas KCl has molecular weight around 74.5513g/mol.
Though, the two heaps of both chemicals will have the equal number of molecules if you weigh 58.44 g of NaCl, and KCl of 74.5513 g that is 6.0221415×1023.
Molecular Weight Vs Atomic Weight
In order to learn more about ‘molecular weight,’ the idea of ‘atomic weight’ must first be known and fully understood.
Since the mixture of two or more natural isotopes (stable and unstable forms) commonly exists, with the same proton number but different neutrons, the atomic weights of those isotopes are somewhat different from one another.
In this scenario, average atomic weights are given and “atomic weight” is defined as the ratio of the resultant value to certain standards.
Thus in other words the molecular weight is the total of all the atomic weights of all atoms in a molecule.
In reality, molecular mass is implied by molecular weight. Recalling that the atomic mass is the mass of an atom in atomic mass units. The number of nucleons, protons and neutrons comprising the nucleus is what an atomic weight is.
The differentiation between molecular weight, atomic weight, molar mass and molecular mass is critical, especially when you require the right quantities of the chemical molecules to react together.
For instance, the proportions of molecules are not a percentage of weights that are relevant.
For all scientific learners it is vital to grasp moles (and molarity, which is moles per liter). To understand more and learn easily, a molecular weight calculator can also be helpful.
What is a Chemical Equation?
The symbolic representation of a chemical reaction is a chemical equation. The reactants are written on the left, while the products are written on the right.
The coefficients next to the entity’s symbol show the number of moles of a substance in the chemical reaction.
Now let us discuss in detail what we know about chemical equations. A chemical equation consists of reactants’ chemical formulae (represented on the left hand side) and products’ formulae as (on the right hand side).
The reactants and products are separated by a sign of an arrow which is read out as “yields”. However, the chemical formulas of each particular reactant as well as product is distinguished by a plus sign from others.
Furthermore, the physical state of each substance is indicated by an abbreviation in parentheses in a subscription next to the substance formulae.
For instance, a gas-state chemical would be specified as (g), whereas, solid as (s), liquid (l), and aqueous (aq).
The term aqueous implies a substance that is diluted while dissolving in water, the common condition of matter includes acids, bases and ionic compounds.
Balanced Chemical Equation
The chemical equations representing the chemical could either be balanced or unbalanced
however the standard way of representing it is as a balanced chemical equation.
In an unbalanced equation, the ratio between reactants and products is not mentioned, just the formulae of reactants and products is written
Contrarily, the reactants as well as products, in a balanced chemical equation contain the same amount and kind of atoms.
Or in other words a balanced chemical equation obeys the law of conservation of mass strictly.
Moreover, in a balanced chemical equation if the ions are present,
both sides of the arrow likewise should have the same total positive and negative charges.
Balancing a Chemical equation
Many of you would be thinking that how to solve chemical equations?
For balancing chemical equations, follow these steps:
First of all, you have to count the existing number of atoms in the reactants and products of each type. Then consider is there the same number of each atom on both sides of the arrow?
If the number on both hand sides are equal, then your equation is a balanced one. Otherwise, you will not have a balanced chemical equation.
or to use an easy way to use an balancing chemical equation calculator tool to get answers quickly.
Increase the no. of reactants’ or products’ atoms or molecules by adding coefficients. Use the lowest possible coefficients.
Repeat steps 1 and 2 to balance the equation.
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