Recent activity by LashundaFpx1

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How can we determine the concentration of lead ions in a sample using an ion-selective electrode?

asked Jan 29 in Analytical Chemistry

1 answer 8 views

Calculate the mole fraction of each component and the total pressure of a gas mixture at 25°C and 2 atm that contains 0.5 moles of methane (CH4) and 0.2 moles of ethane (C2H6).

asked Jan 28 in Chemistry

1 answer 50 views

Calculate the lattice energy of potassium chloride (KCl) using Born-Haber cycle, given the following information:- Ionization energy of potassium (K) = 419 kJ/mol- Electron affinity of chlorine (Cl) = -348 kJ/mol- Heat of sublimation of potassium (K) = 89 kJ/mol- Enthalpy of formation of potassium chloride (KCl) = -436 kJ/mol

answered Jan 23 in Inorganic Chemistry

1 answer 56 views

A chemistry student wants to prepare 250 mL of 0.15 M NaOH solution from a solid compound. What mass of NaOH is required to achieve this concentration?

asked Jan 21 in Inorganic Chemistry

1 answer 19 views

What are the implications of the broaden-and-build theory for resilience?

asked Jan 20 in Psychology

1 answer 6 views

Why are emotions often used in persuasive messages?

asked Jan 17 in Psychology

1 answer 23 views

Who is responsible for the hierarchy of needs?

asked Jan 16 in Psychology

1 answer 23 views

What is computational psychology?

answered Jan 15 in Psychology

1 answer 16 views

Who is credited with discovering the phi phenomenon?

asked Jan 15 in Psychology

1 answer 45 views

According to the objectification theory, what is the consequence of treating a woman's body as an object?

answered Jan 15 in Psychology

1 answer 21 views

What is the premise of the Psychoanalytic theory?

asked Jan 15 in Psychology

1 answer 19 views

What is the most effective treatment for anxiety?

answered Jan 13 in Psychology

1 answer 26 views

Which type of respiration helps organisms generate quick bursts of speed, as opposed to long steady movement?

asked Jan 8 in Science

1 answer 23 views

Who study volcanoes to be able to predict when a volcano will erupt?

answered Jan 8 in Science

1 answer 32 views

What is the name of pluto's moon?

asked Jan 7 in Science

1 answer 29 views

What do most organisms eat in the profundal zone of a lake?

answered Jan 6 in Science

1 answer 34 views

It may seem as though burning destroys matter, but the same amount of what, still exists after a campfire as before?

asked Dec 31, 2024 in Science

1 answer 24 views

How do oceans help control global warming?

answered Dec 30, 2024 in Science

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