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How to convert moles into mass (grams)?
How to convert moles into mass? To convert moles into mass, we first need to find the molar mass of the compound given. This can be done...
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During which phase change does the entropy of a sample of H2O increase?
January 2019 Chemistry Regent During which phase change does the entropy of a sample of H2O increase? (1) H2O(g) → H2O(l) (2) H2O(g) →...
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How to identify an ionic vs covalent compound?
There is a simple and easy way to identify ionic versus covalent compounds. Ionic compounds can be of the following types: 1. Metal +...
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The hydrogen ion concentration of a solution prepared by diluting 50. mL of 0.10 M HNO3(aq) is?
SAT Chemistry practice from College Board The hydrogen ion concentration of a solution prepared by diluting 50. mL of 0.10 M HNO3(aq)...
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What makes a good tutor?
A great tutor is also your mentor, your cheerleader, your friend, and advisor. At the end of the day, we love what we do because we...
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For a chemical system at equilibrium, the concentrations of both the reactants and the products must
For a chemical system at equilibrium, the concentrations of both the reactants and the products must (1) decrease (2) increase (3) be...
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A 0.050 M aqueous solution of which compound is the best conductor of electric current?
A 0.050 M aqueous solution of which compound is the best conductor of electric current? (1) C3H7OH (2) C6H12O6 (3) MgSO4 (4) K2SO4 Answer...
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The Oxidation State of Nitrogen Is Most Positive In Which Compound?
The Oxidation State of Nitrogen Is Most Positive In Which Compound? This is an SAT Chemistry question from 1998 SAT Chemistry test. a....
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3 Reasons Why It Makes Sense To Get a Tutor Ahead of Time
3 Reasons Why It Makes Sense To Get a Tutor Ahead of Time There is always a question of when to get a tutor. If you anticipate a...
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Half-life problems
Nuclear chemistry is the last topic students learn in their chemistry classes. It is an important topic for the chemistry regent. The two...
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