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2 years ago

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

4 0

3 years ago

What is the most reactive metal on the periodic table?

8_murik_8 [283]

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

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3 years ago

How was your day????????

Trava [24]

Answer:

I literally just woke up for school hehe

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3 years ago

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ASAP for brainlist first correct question

Ghella [55]

The second law of thermodynamics states that in a reversible process, the entropy of the universe is constant, whereas in an irreversible process, such as the transfer of heat from a hot object to a cold object, the entropy of the universe increases

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