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kap26 [50]
4 years ago
12

What are examples of methodological errors in a chemistry lab?

Chemistry
1 answer:
rewona [7]4 years ago
7 0

Answer:

i) Use of wrong Indicator in acid base titration.

ii) Addition of chemicals with improper sequence.

iii) Wrong technique used during chemical reaction.

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Silver iodide powder has been used as an antiseptic and as an agent to seed clouds for rain. Silver iodide is 45.9% silver by ma
Dahasolnce [82]

Answer:

22.95g

Explanation:

Given parameters:

Percentage by mass of silver in silver iodide  = 45.9%

Mass of silver iodide given  = 50g

Unknown:

Mass of silver in silver iodide  = ?

Solution:

The formula of the compound is;

 Silver iodide  = AgI

       Since the percentage by mass of silver in the compound is 45.9%;

 Mass of silver  = percentage by mass of silver x mass of AgI

 Mass of silver  = \frac{45.9}{100} x 50  = 22.95g

6 0
3 years ago
A fluid that vaporizes and condenses inside the tubing of a heat pump is called the.
miss Akunina [59]
I believe that is <span>refrigerant! 
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3 years ago
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According to the iupac convention, alkyl substituents on a hydrocarbon chain should be listed in which order?
Scilla [17]

According to the IUPAC convention alkyl substituents on a hydrocarbon chain should be listed in alphabetical without considering prefixes order.

<h3>What is IUPAC convention?</h3>

IUPAC convention of organic chemistry is a method of naming organic chemical compounds as recommended by the International Union of Pure and Applied Chemistry (IUPAC).

The name of the compound is written out with the substituents in alphabetical order followed by the base name (derived from the number of carbons in the parent chain).

Types of IUPAC  Nomenclature of a few important aliphatic compounds:

  1. Alkane
  2. Alkene
  3. Alkyne

Example :

Ethane, which has 2 carbon atoms and 6 hydrogen atoms, with the molecular formula of = C₂H₆

Formation of alkyl group:

Methane (CH₄)  Remove 1 hydrogen (H) convert to methyl (H₃-C-)

Example: Propyl (-CH₃ - CH₂ - CH₂ - )

According to the IUPAC convention alkyl substituents on a hydrocarbon chain should be listed in alphabetical without considering prefixes order.

Learn more about IUPAC convention, Here:

brainly.com/question/14706819

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8 0
2 years ago
The pressure inside a pressure cooker is 2.0 atm. How many minutes will it take to cook 1.0 pound of potatoes in a pressure cook
suter [353]

Answer:

time taken to cook on the pressure cooker = 100 seconds = 1.67 mins

Explanation:

8 0
3 years ago
Heat given off by a fire in a fireplace is an example of
kakasveta [241]
Radiation is the answer fam..............................
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3 years ago
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