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arsen [322]
2 years ago
11

Which of these solution is most basic

Chemistry
2 answers:
pantera1 [17]2 years ago
8 0

Answer:

There is nothing to answer lol

Katarina [22]2 years ago
8 0
Where’s the solutions??
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The concentrations of Fe and K in a sample of riverwater are 0.0400 mg/kg and 1.30 mg/kg, respectively. Express the concentratio
Ierofanga [76]

Answer :

The concentration in molality of Fe is, 7.1\times 10^{-7}mol/kg

The concentration in molality of K is, 3.3\times 10^{-5}mol/kg

Explanation:

First we have to calculate concentration in molality of Fe.

Molar mass of Fe = 56 g/mol

Concentration of Fe = 0.0400 mg/kg = 4\times 10^{-5}g/kg

Conversion used : 1 g = 1000 mg

\text{Concentration in molality}=7.1\times 10^{-7}mol/kg

Thus, the concentration in molality of Fe is, 7.1\times 10^{-7}mol/kg

Now we have to calculate concentration in molality of K.

\text{Concentration in molality}=\frac{\text{Concentration of K}}{\text{Molar mass of K}}

Molar mass of K = 39 g/mol

Concentration of K = 1.30 mg/kg = 1.3\times 10^{-3}g/kg

Conversion used : 1 g = 1000 mg

\text{Concentration in molality}=\frac{1.3\times 10^{-3}g/kg}{39g/mol}

\text{Concentration in molality}=7.1\times 10^{-7}mol/kg

Thus, the concentration in molality of K is, 3.3\times 10^{-5}mol/kg

5 0
3 years ago
Will mark brainliest if correct!!
german

Answer:

Na2O

Explanation:

it is because oxygen has a lower valence compared to sodium

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CAESIUM is the most reactive metal............
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