1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lyrx [107]
2 years ago
9

. Your lab technician was to determine the ash content of buttermilk by conventional dry ashing. The technician weighed 5 g of l

iquid buttermilk into one weighed platinum crucible, immediately put the crucible into the muffle furnace using a pair of all stainless steel tongs, and ashed the sample for 48 h at 800 °C. The crucible was removed from the muffle furnace and set on a rack in the open until it was cool enough to reweigh. (4 marks)
a. What errors were made in the preceding method (there were several)?



b. What were the likely results of these errors?​
Biology
1 answer:
expeople1 [14]2 years ago
5 0

Answer:

Ashing process is done to evaluate the ash content present in petroleum or other proucts, so that they can be used for certain applications

The two major types of ashing process that includes dry ashing and wet ashing and can be performed using microwave systems or conventional means.

a. errors made in the preceding method while determining the ash content of buttermilk by conventional dry ashing are as following:

  • Buttermilk should not immediatly put into muffle immediatley, it should be boiled first to avoid splatter.
  • Temperature should be between 500 to 600 degree celcius at high temperature teh ash content can be loss.
  • The sample should be ashed for 12-18 hrs , more than this can damage the required ash content.
  • platinum tip should be used in place of stainless steel because platinum has a lower concomitant tip impedance than stainless stell, so less reactive to ash.
  • The ash should put in dessicator and not allow to kept in open because ash can react with the humidity in teh atmosphere.

b. The result that occur due to above errors such as the temperature, time,  tongs and leaving ash in open will manipulate the final ash content and its application can be harmful for humans and for other purpose if it will be used.

You might be interested in
Which component CANNOT be part of this strand?
baherus [9]

uracil

Explanation:

because the rest are part of the DNA strand

7 0
2 years ago
1.Mars is the 5th planet from the Sun in our Solar System. *
Vilka [71]
There’s a lot of stuff here
4 0
3 years ago
Read 2 more answers
Two grizzly bears are fighting over a fish to feed themselves l. What kind of interaction is this scenario, which works as a lim
Monica [59]

Answer:

comppetition

Explanation:

5 0
3 years ago
Which was most likely an effect on society that resulted from improvements in blood handling during World War I and World War II
Alenkinab [10]
B. more soldies who had lost a limb returned home
7 0
2 years ago
Read 2 more answers
How do scientific theories compare to hypotheses? a Theories are the same as hypotheses. b Theories unify a broad range of obser
Maslowich

Answer:

b. Theories unify a broad range of observations and hypotheses.

Explanation:

In broad terms, theories are the set of principles that can or must be used to explain certain phenomena. It involves the involvement or inclusion of any set of principles to get to a conclusion.

Hypothesis, on the other hand, is just a term used for an assumption made. And this assumption may be made even before any observation has been done, a mere suggestion for how to proceed with things or an assumption about things.

Thus, scientific theories unify a broader range of observations that had been done, including any hypothesis. So, the <u>correct answer is option b</u>.

5 0
3 years ago
Other questions:
  • The fluid mosaic model describes the structure of the plasma membrane. Embedded within the plasma membrane are proteins and carb
    15·1 answer
  • What part of a wind turbine provides motion to convert into electricity?
    5·2 answers
  • Antibodies that are passed on from mother to child are part of _____.
    6·2 answers
  • In an adversarial system, the winning side is likely to be
    7·1 answer
  • Why can't all mixtures be classified as solutions?
    14·1 answer
  • When there are unbonded ends of the DNA, they are called
    5·2 answers
  • Describe the relationship between ADP and ATP. What does each molecule do? Where would you find each molecule? (Use either Photo
    12·1 answer
  • Brainliest if you get it right
    11·1 answer
  • 1. What factors are in an ecosystem?
    8·1 answer
  • What are alleles?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!