Questions by Lillie851485

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1 answer 33 views

How can magnetic resonance spectroscopy be used to determine the purity and concentration of a sample of aspirin? Provide a step-by-step explanation of the process and discuss the factors that can affect the accuracy of the results.

asked Feb 5 in Physical Chemistry

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1 answer 21 views

How can chemistry students in areas with limited availability of chemistry-related internships and job opportunities gain practical experience and develop their skills to become competitive candidates for future employment in the field?

asked Feb 5 in Chemical education

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1 answer 41 views

Calculate the weight-average molecular weight of a polymer sample with the following information:- The polydispersity index (PDI) of the sample is 1.5.- The number-average molecular weight (Mn) of the sample is 20,000 g/mol. - The weight fraction (w) of the polymer with a molecular weight of 30,000 g/mol is 0.2, and the weight fraction of the polymer with a molecular weight of 10,000 g/mol is 0.8.

asked Feb 3 in Physical Chemistry

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1 answer 30 views

Calculate the standard enthalpy change for the reaction where 50 ml of 0.1 M hydrochloric acid reacts with 50 ml of 0.1 M sodium hydroxide solution. The temperature change observed during the reaction was 5°C and the specific heat capacity of the solution is 4.18 J/g°C.

asked Feb 3 in Chemical thermodynamics

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1 answer 27 views

How did Alan Turing's work contribute to the development of artificial intelligence?

asked Jan 20 in Psychology

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1 answer 18 views

Why do we often forget the details of our sensory experiences?

asked Jan 15 in Psychology

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1 answer 49 views

What is the role of self-esteem in adolescent development?

asked Jan 14 in Psychology

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1 answer 10 views

What state occurs when the amount of solute dissolved exceeds the solubility?

asked Jan 7 in Science

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1 answer 21 views

What noble gas follows hydrogen on the periodic table?

asked Jan 7 in Science

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1 answer 28 views

What are the high points in a transverse wave called?

asked Dec 28, 2024 in Science

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1 answer 11 views

In what unit is speed usually measured?

asked Dec 27, 2024 in Science

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