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Novosadov [1.4K]
3 years ago
10

Language of chemistry

Chemistry
1 answer:
Alisiya [41]3 years ago
3 0

Answer:

A

Explanation:

Pico(p) has a value of 10^-12.

Nano(n) has a value of 10^-9.

A. 374ps= 374×10^-12 s

B. 3.74ps= 374×10^-14 s

C. 374ns= 374×10^-9 s

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3. Suppose you had titrated your vinegar sample with barium hydroxide instead of sodium hydroxide:
charle [14.2K]

Answer:

39.6 mL

Explanation:

Step 1: Write the balanced neutralization reaction

Ba(OH)₂(aq) + 2 CH₃COOH(aq) ⟶ Ba(CH₃COO)₂(aq) + 2 H₂O(l)

Step 2: Calculate the moles corresponding to 2.78 g of CH₃COOH

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2.78 g × 1 mol/60.05 g = 0.0463 mol

Step 3: Calculate the moles of Ba(OH)₂ needed to react with 0.0463 moles of CH₃COOH

The molar ratio of Ba(OH)₂ to CH₃COOH is 1:2. The moles of Ba(OH)₂ needed are 1/2 × 0.0463 mol = 0.0232 mol.

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6 0
2 years ago
7.
shtirl [24]

Answer:

A. Nonmetals have relatively high ionization energies.

Explanation:

Nonmetals have high ionization energies because they tend to gain electrons in order to fill their outer shell. Also, the electrons are closer to the nucleus and require more energy to remove them.

Hope that helps.

7 0
2 years ago
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