<h3>Answer:</h3>
221.90 g.mol⁻¹
<h3>Explanation:</h3>
The mass of contained by a molecule is known as molecular mass. It is the sum of atomic weights of the elements contained by the molecule. In given case Iodine Pentafluoride has a chemical formula,
IF₅
The atomic weights of each element are as;
Iodine = 126.90 g.mol⁻¹
Fluorine = 19.00 g.mol⁻¹
As there are five atoms of Fluorine so, we will multiply the atomic weight of Fluorine by five and that of Iodine by one as there is only one Iodine atom.
Therefore,
Molecular Mass of IF₅ = (1 × 126.90 g.mol⁻¹) + (5 × 19.00 g.mol⁻¹)
Molecular Mass of IF₅ = (126.90 g.mol⁻¹) + (95.00 g.mol⁻¹)
Molecular Mass of IF₅ = 221.90 g.mol⁻¹
Group of tissues form a cell , and a group of cells form an organ
Answer:
The empirical formula for this compound is thus CH2.
Explanation:
Answer:
118.75°C is the boiling point of a solution.
Explanation:
Mass of the solute that is barbiturates = 42.5 g
Molar mass of a solute = 184.2 g/mol
Moles of solute = ![\frac{42.5 g}{184.2 g/mol}=0.2307 mol](https://tex.z-dn.net/?f=%5Cfrac%7B42.5%20g%7D%7B184.2%20g%2Fmol%7D%3D0.2307%20mol)
Mass of the solvent that acetic acid = 825 g = 0.825 kg
![molality=\frac{\text{Moles of solute}}{\text{Mass of solvent}}](https://tex.z-dn.net/?f=molality%3D%5Cfrac%7B%5Ctext%7BMoles%20of%20solute%7D%7D%7B%5Ctext%7BMass%20of%20solvent%7D%7D)
Molality of the solution (m):
![m=\frac{0.2307 mol}{0.825 kg}=0.2796 m](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B0.2307%20mol%7D%7B0.825%20kg%7D%3D0.2796%20m)
Elevation in boiling point is given as:
![\Delta T_b=i\times K_b\times m](https://tex.z-dn.net/?f=%5CDelta%20T_b%3Di%5Ctimes%20K_b%5Ctimes%20m)
i = 1 (organic compound)
![=1\times 3.07^oC/m\times 0.2796 m=0.8585^oC](https://tex.z-dn.net/?f=%3D1%5Ctimes%203.07%5EoC%2Fm%5Ctimes%200.2796%20m%3D0.8585%5EoC)
![\Delta T_b=T_b-T](https://tex.z-dn.net/?f=%5CDelta%20T_b%3DT_b-T)
= Boiling temperature of solution.
T = boiling temperature of solvent that is acetic acid=117.9°C
![0.8585^oC=T_b-117.9^oC](https://tex.z-dn.net/?f=0.8585%5EoC%3DT_b-117.9%5EoC)
![T_b=118.75 ^oC](https://tex.z-dn.net/?f=T_b%3D118.75%20%5EoC)
118.75°C is the boiling point of a solution.
In your question where the ask is to compute the specific heat capacity (in J/Kg*K) at the constant volume of nitrogen(n_2) gas and the molar mass of N_2 is 28.014 g/mol and in my calculation i came up with an answer of 890.391 J/Kg*K