3 years ago

All of the atoms of argon have the same?

Chemistry

2 answers:

UkoKoshka [18]3 years ago

7 0

Atomic number is right

JulijaS [17]3 years ago

4 0

2 is right i would think

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Ivan

Answer:

protons and neutrons

Explanation:

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2 years ago

What is the molarity of the potassium hydroxide if 25.25 mL of KOH is required to neutralize 0.500 g of oxalic acid, H2C2O4? H2C

Greeley [361]

Answer:

0.444 mol/L

Explanation:

First step is to find the number of moles of oxalic acid.

n(oxalic acid) = $\frac{0.5g}{90.03 g/mol} = 5.5537*10^{-3} mol\\$

Now use the molar ratio to find how many moles of NaOH would be required to neutralize $5.5537*10^{-3} mol\\$ of oxalic acid.

n(oxalic acid): n(potassium hydroxide)

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$5.5537*10^{-3} mol\\$ : x

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$c = \frac{number of moles}{volume} = \frac{0.0111}{0.025} = 0.444 mol/L$

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Is the sweetened iced tea an electrolyte mixture?

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2 years ago

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Silver bromide (AgBr) has a solubility of 7.07 × 10^-7 mol/L

kirill115 [55]

a. AgBr(s)⇒ Ag⁺(aq) + Br⁻(aq)

b. Ksp AgBr = s²

c. 5 x 10⁻¹³ mol/L

<h3>Further explanation</h3>

Given

solubility AgBr = 7.07 x 10⁻⁷ mol/L

Required

The dissolution reaction

Ksp

The solubility product constant

Solution

a. dissolution reaction of AgBr

AgBr(s)⇒ Ag⁺(aq) + Br⁻(aq)

b. Ksp

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Ksp AgBr = (s) (s)

Ksp AgBr = s²

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3 years ago

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