Practice Test Geeks(EIT) Engineer In Training Certification Practice Test
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Chemistry Flashcards

6 cards from real EIT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Chemistry flashcards as text

  1. What is the oxidation state of sulfur in H₂SO₄?

    Answer: +6

    With H at +1×2 and O at −2×4, sulfur must be +6 to balance the neutral molecule.

  2. Le Chatelier's principle states that when a stress is applied to a system at equilibrium, the system will:

    Answer: Shift to oppose the stress

    Le Chatelier's principle states the equilibrium shifts in the direction that counteracts the applied stress.

  3. The Henderson-Hasselbalch equation is primarily used to calculate:

    Answer: pH of a buffer solution

    pH = pKa + log([A⁻]/[HA]) is the Henderson-Hasselbalch equation for buffer pH.

  4. What is Avogadro's number?

    Answer: 6.022 × 10²³

    Avogadro's number is 6.022 × 10²³ entities per mole of substance.

  5. Which type of chemical bond involves the sharing of electrons between two atoms?

    Answer: Covalent bond

    Covalent bonds form when atoms share electron pairs to achieve stable configurations.

  6. Raoult's Law describes which property of ideal solutions?

    Answer: Vapor pressure of a component

    Raoult's Law states that the partial vapor pressure equals the mole fraction times the pure-component vapor pressure.