Answer:
The specific gravity of the saturated solution is 2
Explanation:
Specific gravity represents the ratio of the density of a solution, in this case, a saturated potassium iodide (KI) solution, to the density of water. Assuming the density of water is 1:
Specific gravity = Density
Density itself is defined as the mass divided by volume.
In 100mL of water, the mass of dissolve-able KI is:
100mL * (1g KI / 0.7mL) = 143g of KI
This indicates that all 100g of KI dissolves (Mass solute)
With 100mL of water corresponding to a mass of 100g (Mass solvent)
The overall mass of the solution computes to 100g + 100g = 200g
In a volume of 100mL, the solution's density is:
200g / 100mL = 2g/mL.
Specific gravity is a dimensionless quantity, thus the specific gravity of the saturated solution is 2
Result:
I believe it’s called Trinitrogen Pentaseleniumide
Explanation:
Tri means three
Penta means five
The second element concludes with -ide
The form of ossification that takes place is the endomembrane or endochondral type. In joints classified as SYNARTROSIS, there isn't an intermediate formation of ligament or cartilage, meaning the bone grows not from cartilage ossification but from undifferentiated cells that will calcify into bone cells, forming the primary structural units called OSTEONAS. The skull bones, particularly in the temporal region (Temporary Suture), exhibit this type of joint, which experiences rapid growth over a lifetime through mechanisms distinct from those affecting movable joints.
The enthalpy of hydration for copper sulfate is -1486.62 kJ/mol, indicating that 1486.62 kJ of energy is absorbed by a mole of copper sulfate during its hydration. Step 1: Calculate the energy released per mole of dissolved substance (Eq. 1). If 0.102 moles release 55.51 kJ, then 1 mole corresponds to 541.85 kJ/mol. Therefore, ΔH = -541.85 kJ/mol. Step 2: Identify the energy absorbed by dissolved substance (Eq. 2). When 0.101 moles absorb 95.31 kJ, 1 mole will absorb 944.77 kJ/mol, thus ΔH = 944.77 kJ/mol. Step 3: Subtract Eq. 2 from Eq. 1. Thus, ΔH = -541.85 kJ/mol (Eq. 1) and ΔH = 944.77 kJ/mol (Eq. 2), leading to ΔH = -541.85 - 944.77, so ΔH = -1486.62 kJ/mol.
The ions involved are nitrate ions and potassium ions
ExplanationPotassium dichromate reacts with barium nitrate in a double-decomposition reaction that leads to the formation of barium dichromate and potassium nitrate. This process occurs due to the low solubility of barium dichromate, which tends to precipitate out of the solution shortly after it forms.Begin with the balanced chemical reaction for this interaction:
Recast the chemical equation into its ionic form; represent all soluble salts, indicated by state symbols (aq), as their individual ions while retaining the insoluble ones (s) intact.
and
are present on both sides of the reaction equally. Thus, these two ions do not participate in the net reaction and function as spectator ions.
