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Tutor profile: Zahra G.

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Zahra G.
Chemistry Tutor and PhD Student
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Questions

Subject: Pre-Calculus

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Question:

What is the absolute values of -4 and 2.1?

Inactive
Zahra G.
Answer:

Absolute value of -4 is 4 and absolute value of 2.1 is 2.1.

Subject: Chemistry

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Question:

What is molarity?

Inactive
Zahra G.
Answer:

The other name of molarity is molar concentration. If we dissolve 5 moles of NaCl in 1 liter of water, then the molarity of this solution is 5. Molarity is equal to the number of moles of solvent in 1 liter of solution.

Subject: Chemical Engineering

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Question:

What is mass balance?

Inactive
Zahra G.
Answer:

Mass balance means that the amount of existing material in a closed system is constant. If we have a system with a flow in and a flow out, then flow in is equal to flow out plus accumulation of the material inside the system.

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