Recent activity by FrankieBerge

1 answer 28 views

Calculate the standard enthalpy change of the precipitation reaction between 50.0 mL of 0.100 M Pb(NO3)2 and excess 0.100 M NaCl solution at 25°C given that the reaction is Pb(NO3)2 (aq) + 2NaCl (aq) → PbCl2(s) + 2NaNO3 (aq) and the enthalpy of formation of NaNO3 (aq) and NaCl (aq) are -467.7 kJ/mol and -411.2 kJ/mol respectively.

answered 2 days ago in Chemical thermodynamics

1 answer 70 views

A student mixed 25.0 grams of sodium hydroxide with excess hydrochloric acid. If the theoretical yield of sodium chloride is 34.0 grams, what is the percent yield of the reaction?

asked Jan 22 in Chemical reactions

1 answer 17 views

What is the term for organisms that live in extremely hot environments?

asked Jan 7 in Science

1 answer 28 views

What helps sound travel in waves?

answered Jan 6 in Science

1 answer 28 views

What happens to meteors as they fall through the mesosphere?

asked Jan 6 in Science

1 answer 41 views

For photosynthesis to begin, the inputs required are sunlight, water, and what?

asked Dec 30, 2024 in Science

1 answer 25 views

What are the sporophytes in ferns?

answered Dec 27, 2024 in Science

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