Explain the concept of the mole. How many moles of chloroethylene (C_2H_3Cl) contain 5.47 \times 10^{26} molecules? What is the difference between weight and mass? How many moles of atoms are in 4.63 x 10^21 Ca atoms? What is molar conversion?
frequently asked questions q1 what are molality and molarity? molarity is the number of moles of a substance per litre of solution, also known as molar concentration. a capital m signifies solutions labelled with molar concentration. a 1.0 m solution contains 1 mole of solvent per litre of ...
Molalityis the number ofmoles of solute per kilogram of solvent. It is important the mass of solvent is used and not the mass of the solution. Solutions labeled with molal concentration are denoted with a lower case m. A 1.0 m solution contains 1 mole of solute per kilogram of solvent....
In the case of atoms, it has protons, neutrons, and electrons in it, and each of these sub-atomic particles carries a definite mass, although a neutron is chargeless it has a mass. Answer and Explanation: Atomic mass The ...
Avogadro's Constant refers to the number of particles in one mole of substance (6.02214076×10²³ mol⁻¹), expressed with units, while Avogadro's Number is the dimensionless value of this constant, approximately 6.022×10²³.
mass of molecule = mass of mole/NA Then, mass of helium molecule is 6.6x10-26kg The Attempt at a Solution Question: Is rms speed of a helium molecule the same as the rms speed of an atom. Yes, because the atoms make up the molecule? No, helium is diatomic (right?) ...
The infrared analysis of the temperature dependence of the intensities of the ν(C O) absorption bands of cyclohexanol shows that the enthalpy difference between the equatorial and axial conformers is Δ H = 376 ± 51 cal/mole. It is shown also that for this derivative ΔH ΔF, and, ...
The definition of molecular weight is directly related to thecarbon-12isotope. The mass of one mole of carbon 12 atoms is exactly 12 grams, so its molar mass is exactly 12 grams per mole. Moreover, we can calculate the molecular weight of molecules containing the same atoms like O2 or N2...
this gap and measure the particles in a macroscopic level, molar mass concept is useful. The definition of molecular weight is directly related to the carbon-12 isotope. The mass of one mole of carbon 12 atoms is exactly 12 grams, which is its molar mass is exactly 12 grams per mole. ...
What is the difference between heat capacity and heat energy?Question:What is the difference between heat capacity and heat energy?Heat EnergyThe movement of atoms present in a compound, result into the release of energy, which is termed as heat energy. Heat energy can be shared among two...