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anzhelika [568]

3 years ago

7

6-8 sentence description of abolition of slavery movement IN YOUR OWN WORDS - this description should include information about

the movement and details of what people did to push for this reform

1 answer:

Snezhnost [94]3 years ago

7 0

Where’s the passage?

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A judge in a juvenile court can dispose a juvenile runaway to a residential facility.

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which of the following will stay constant,no matter is the substance is in a solid,liquid,or gas states

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Name this compound Cr2(CO3)3

kiruha [24]

Answer:

Molecular Weight

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Chromium(III) Carbonate Cr2(CO3)3 Molecular Weight -- EndMemo.

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3 years ago

a water sample is found to have a cl- content of 100ppm as nacl what is the concentration of chloride in moles per liter

ladessa [460]

Answer:

The concentration of chloride ion is $2.82\times10^{-3}\;mol/L$

Explanation:

We know that 1 ppm is equal to 1 mg/L.

So, the $Cl^-$ content 100 ppm suggests the presence of 100 mg of $Cl^-$ in 1 L of solution.

The molar mass of $Cl^-$ is equal to the molar mass of Cl atom as the mass of the excess electron in $Cl^-$ is negligible as compared to the mass of Cl atom.

So, the molar mass of $Cl^-$ is 35.453 g/mol.

Number of moles = (Mass)/(Molar mass)

Hence, the number of moles (N) of $Cl^-$ present in 100 mg (0.100 g) of $Cl^-$ is calculated as shown below:

$N=\frac{0.100\;g}{35.453\;g/mol}=2.82\times 10^{-3}\;mol$

So, there is $2.82\times10^{-3}\;mol$ of $Cl^-$ present in 1 L of solution.

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4 years ago

Which of these statements best describes how an increase in the amount of Sun’s heat reflected by the Earth’s surface and atmosp

Korolek [52]

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