Answer:
Option c. is correct
Explanation:
A chemical bond enables the formation of chemical compounds depending on the nature of the participating atoms like atoms, ions or molecules.
These are formed as a result of the force of attraction between oppositely charged ions.
It is formed by the overlapping of the atomic orbitals of the two atoms.
When the length of a chemical bond is short an electron is held tighter and the bond is stronger
Answer:
The type of reaction that is occuring is 164.8 kJ.
Incomplete question. The full question read;
You are analyzing water that is known to contain silver nitrate, AgNO3. You decide to determine the amount of silver nitrate using gravimetric analysis based on the reaction:
Ag+ + Cl– → AgCl
You add excess NaCl to a 100 ml sample of the water and find that 1.2 g of AgCl solid forms.
If you added excess NaCl to a 200 ml sample of water from the same source, how many grams of AgCl solid would you expect to form?
Answer:
<u>0.6 gram</u>
Explanation:
<em>Remember</em>, we were first told when NaCl is added to a 100 ml sample of the water it results in the formation of 1.2 g of AgCl.
Hence, if the volume of water is increased 2x to 200 ml from 100 ml, and NaCl is added to it, then the expected number of grams should be 0.6 (1.2g/2). That is, with increased volume, the amount of dissolution of AgCl is increased.
Answer:
10.5 g
Explanation:
Step 1: Given data
- Molar concentration of the solution (C): 0.243 M
- Volume of solution (V): 0.580 L
Step 2: Calculate the moles of solute (n)
Molarity is equal to the moles of solute divided by the liters of solution.
M = n/V
n = M × V
n = 0.243 mol/L × 0.580 L = 0.141 mol
Step 3: Calculate the mass corresponding to 0.141 moles of KCl
The molar mass of KCl is 74.55 g/mol.
0.141 mol × 74.55 g/mol = 10.5 g
<span>If the volume of a sample of water is 2.5 milliliters, the volume of this sample in liters is A.) 2.5 x 10^-3 L. 1 mL = 1 x 10^-3 L. 2.5 mL = x L. Make a proportion. 1 mL : 1 x 10^-3 L = 2.5 mL : x. x = 2.5 mL * 1 x 10^-3 L : 1 mL. x = 2.5 x 10^-3 L. Therefore, 2.5 mL = 2.5 x 10^-3 L.</span>
