Answer: Titration
Explanation:
Titration is a method of quantitative analysis, by which a student, with standard volumetric equipment, burettes, and pipettes, can achieve very precise, and accurate results. It is also known as
volumetric analysis
.
The answer is false.
That is the ticketing area is more secure than the area beyond the security check point is false rather than the area beyond security check point is more safe than the ticketing area.
There is more security in the area beyond security check point because of anti-terrorism actions .
There is less security on the ticketing area and more on security check point.
The mass of the formed precipitate of AgCl in the reaction is 1.29 grams.
<h3>How do we find moles from molarity?</h3>
Moles (n) of any substance from molarity (M) will be calculated by using the below equation:
M = n/V, where
V = volume in L
Given chemical reaction is:
2AgNO₃(aq) + CaCl₂(aq) → 2AgCl(s) + Ca(NO₃)₂(aq)
- Moles of CaCl₂ = 0.150M × 0.03L = 0.0045 moles
- Moles of AgNO₃ = 0.100M × 0.015L = 0.0015 moles
From the stoichiometry of the reaction, mole ratio of AgNO₃ to CaCl₂ is 2:1.
0.0015 moles of AgNO₃ = reacts with 1/2×0.0045 = 0.00075 moles of CaCl₂
Here CaCl₂ is the limiting reagent, and formation of precipitate depends on this only.
Again from the stoichiometry of the reaction:
0.0045 moles of CaCl₂ = produces 2(0.0045) = 0.009 moles of AgCl
Mass of 0.009 moles AgCl will be calculated as:
n = W/M, where
- W = required mass
- M = molar mass = 143.45 g/mol
W = (0.009)(143.45) = 1.29g
Hence required mass of precipitate is 1.29 grams.
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Chemical reaction found cracked and some H2SO.zign.sulfur
