Questions
Please explain how you design the experiment to predict the spoilage microorganism that affected on the...

Please explain how you design the experiment to predict the spoilage microorganism that affected on the Shelf-life of meat balls from primary model to validation. The factors are the storage temperature, water activity, pH

In: Biology

Would a change in temperature during a calibration of volumetric glassware experiment (involving a buret and...

Would a change in temperature during a calibration of volumetric glassware experiment (involving a buret and pipet) impact accuracy, precision or both? Explain. What would be the difference if a graduated cylinder was used instead? Explain.

In: Chemistry

Consider a random experiment of rolling 2 dice. What is probability of rolling a sum larger...

Consider a random experiment of rolling 2 dice. What is probability of rolling a sum larger than 9? Select the best answer.
  • A. 0.5
  • B. 0.1667
  • C. 0.2333
  • D. None of the above

In: Statistics and Probability

Experiment: Purification of Organic Compounds by Simple Distillation - using a mixture of aqueous ethanol. Q:Would...

Experiment: Purification of Organic Compounds by Simple Distillation - using a mixture of aqueous ethanol.

Q:Would the total volume of the fractions add up to 80ml (the initial volume) ? Explain why based on your results.

In: Chemistry

Power calculation for hypothesis testing are relatively easy to do with modern statistical software. What do...

Power calculation for hypothesis testing are relatively easy to do with modern statistical software. What do you think adequate power should be for an experiment? What issues need to be considered in answering the question?

In: Statistics and Probability

1) Write a brief introduction on the theory behind IR spectroscopy and gas chromatography. Explain what...

1)

Write a brief introduction on the theory behind IR spectroscopy and gas chromatography. Explain what each instrumentation technique is doing and how it works. Also address the

purpose of each part of the experiment.

In: Chemistry

What can you conclude about the effect of dilution on the pH of a buffer solution...

What can you conclude about the effect of dilution on the pH of a buffer solution such as buffer A (10 mL of sodium bicarbonate + 10 mL of sodium carbonate) in your experiment? Explain your answers.

In: Chemistry

I am doing the lab of chromatography of spinach. Can you briefly explain what "sources of...

I am doing the lab of chromatography of spinach. Can you briefly explain what "sources of error" in this experiment? Limitation of technique and improvment? There is no any information is given. Just need some explains

In: Chemistry

During this distillation experiment, a student collects a 10.00 mL fraction consisting of 70% ethyl acetate...

During this distillation experiment, a student collects a 10.00 mL fraction consisting of 70% ethyl acetate and 30% n-butyl acetate (by volume). What is the mole fraction of n-butyl acetate in this sample?

In: Chemistry

Search for the thought experiment called “Maxwell’s demon” and summarize its importance regarding the second law...

Search for the thought experiment called “Maxwell’s demon” and summarize its importance regarding the second law of thermodynamics in your own words in a half a page long essay. Add the references at the end of the essay.

In: Mechanical Engineering