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yanalaym [24]
2 years ago
13

2. Aqueous lead (II) nitrate reacts with aqueous potassium chloride and produces

Chemistry
1 answer:
Rom4ik [11]2 years ago
7 0

Answer:

302i83oeheiehdodnfifnf

Explanation:

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Sound waves are created when something is caused to______
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A student dissolves 3.9g of aniline (C6H5NH2) in 200.mL of a solvent with a density of 1.05 g/mL . The student notices that the
tino4ka555 [31]

Answer:

2.1 × 10⁻¹ M

2.0 × 10⁻¹ m

Explanation:

Molarity

The molar mass of aniline (solute) is 93.13 g/mol. The moles corresponding to 3.9 g are:

3.9 g × (1 mol/93.13 g) = 0.042 mol

The volume of the solution is 200 mL (0.200 L). The molarity of aniline is:

M = 0.042 mol/0.200 L = 0.21 M = 2.1 × 10⁻¹ M

Molality

The moles of solute are 0.042 mol.

The density of the solvent is 1.05 g/mL. The mass corresponding to 200 mL is:

200 mL × 1.05 g/mL = 210 g = 0.210 kg

The molality of aniline is:

m = 0.042 mol/0.210 kg = 0.20 m = 2.0 × 10⁻¹ m

5 0
3 years ago
Iontophoresis is a noninvasive process that transports drugs through the skin without needles. In the photo, the red electrode i
anyanavicka [17]

Answer:

Follows are the explanation to this question:

Explanation:

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8 0
2 years ago
How many moles in 6.57 x 10^24 formula units of NaCl?
laiz [17]

Answer:

3.955*10^48

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3 years ago
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