3 years ago

What is the number of molecule(s)?

Chemistry

2 answers:

belka [17]3 years ago

6 0

Answer:

Explanation:

Alika [10]3 years ago

4 0

The answer is 4 I believe

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Sonar stands for “sound navigation and ranging.” What assumption was proved wrong after the invention of sonar?

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B. The ocean floor is featureless.

Explanation:

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3 years ago

A 24.00 mL sample of a solution of Pb(ClO3)2 was diluted with water to 52.00 mL. A 17.00 mL sample of the dilute solution was fo

klio [65]

Answer:

0.238 M

Explanation:

A 17.00 mL sample of the dilute solution was found to contain 0.220 M ClO₃⁻(aq). The concentration is an intensive property, so the concentration in the 52.00 mL is also 0.220 M ClO₃⁻(aq). We can find the initial concentration of ClO₃⁻ using the dilution rule.

C₁.V₁ = C₂.V₂

C₁ × 24.00 mL = 0.220 M × 52.00 mL

C₁ = 0.477 M

The concentration of Pb(ClO₃)₂ is:

$\frac{0.477molClO_{3}^{-} }{L} \times \frac{1molPb(ClO_{3})_{2}}{2molClO_{3}^{-}} =0.238M$

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3 years ago

Which of the following is true about gravity? <br><br> Select all that apply.

Ivenika [448]

Answer:

its always attractive

Explanation:

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2 years ago

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Mole conversions.<br> Find the number of moles of argon in 607g of argon?

bogdanovich [222]

Answer:

24249.65 mol

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n=MM × m

n= 39.95 ×607

n=24249.65

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What is the difference between a continuous spectrum and a line spectrum? Give a source of each

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