Subtract the radius of one of the atoms from the total distance between the nuclei if the bond is ionic. For example, if the radius of one of the atoms is 60 pm, and the distance between the nuclei of the two atoms is 160 pm, the radius of the other atom is 100 pm. References U...
The weight of solute in the solution is 37/100 •50 g = 18.5 g. HCl consists of one hydrogen atom (atomic weight 1 g/mole) and one chlorine atom (atomic weight 35 g/mole), so its molecular weight is 36 g/mole. Divide this into the weight in the solution, to get 0.51 moles. ...
If you see "normal" as "expected," even in the chemical sense this is more or less on target: A normalized preparation is one that has been created in proportion or relation to an established standard. To discover how to calculate the normality of NaOH, or how to convert from normality ...
The normal level of BMI lies around 18.5 to 24.9 in an adult person and that defines that a person has the perfect tissue mass in them. The body mass index is important as it can be used to determine if a person...
Calculate the radii of the species Cl, Cl+, and Cl-. Ionic Radius: It is the factor that determines a certain ion's size based on the distance between the ion's outer shell and its nucleus. The outer electrons' configuration will assist in the calculation of the radii of certain ions....
An example helps make sense of this definition. If you have one molecule of water, H2O, you can see that two H atoms react with one O atom to form this compound. But because the MW of H is about 1.0 and than of O is 16.0, you can see that the molecule contains 2(1) = 2 mas...
Atoms combine in various ways according to the number of electrons each has in its outer shell. Ionic compounds, such as sodium chloride (NaCl), may be composed of only one atom each of two different elements, and some covalent gases, such as hydrogen (H2) and oxygen (O2) are composed ...
about 100 years by various researchers. A mole is to the macroscopic world what an individual particle is to the microscopic world with one difference: You can break a mole into fractions, but you can't do that to a particle such as an atom or molecule without changing it into something ...
How to Calculate Concentration From Density. Density and concentration both describe the amount of a solute per unit volume of a solvent. The former value measures mass per volume. The latter value measures how many moles of atoms exist per unit volume.
Example: You analyze a compound and find that it contains 0.675 g of hydrogen (H), 10.8 g of oxygen (O) and 13.5 g of calcium (Ca). What is the empirical formula? The molar mass of hydrogen is 1 g (rounding to one decimal place), so the number of moles present in the compound...