Recent activity by AngelitaMark

1 answer 62 views

What is the concentration of a copper(II) ion (Cu2+) solution using polarography if the current at -0.5 V vs. saturated calomel electrode (SCE) is 10 mA and the current at -1.0 V vs. SCE is 25 mA, assuming the standard reduction potential of Cu2+/Cu is +0.34 V vs. SCE and the supporting electrolyte is 0.1 M KCl?

asked 6 days ago in Analytical Chemistry

1 answer 50 views

How do you determine the amount of chlorine present in a water sample using coulometry?

answered 6 days ago in Analytical Chemistry

1 answer 5 views

A student carried out a chemical reaction in the laboratory and obtained 12 grams of the product. However, the theoretical yield of the product was 15 grams. Calculate the percent yield of the product.

answered Jan 22 in Chemical reactions

1 answer 56 views

When the number of electrons and the number of protons are equal, the object is what?

asked Jan 8 in Science

1 answer 28 views

A mineral’s crystal shape is determined by the way what objects are arranged?

asked Dec 30, 2024 in Science

1 answer 51 views

In biological augmentation, ecologists use what to add essential materials to ecosystems?

answered Dec 27, 2024 in Science

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