Answer is: 20.0g H - 20.0 moles; 0.50 g Na - 0.022 moles; 2.0 x 102 mg H2O - 0.011 moles.
1) m(H) = 20.0 g; mass of hydrogen.
n(H) = m(H) ÷ M(H).
n(H) = 20 g ÷ 1 g/mol.
n(H) = 20.0 mol; amount of hydrogen.
2) m(Na) = 0.50 g; mass of sodium.
n(Na) = m(Na) ÷ M(Na).
n(Na) = 0.5 g ÷ 22.98 g/mol.
n(Na) = 0.022 mol; amount of sodium.
3) m(H₂O) = 200 mg ÷ 1000 mg/g.
m(H₂O) = 0.20 g; mass of water.
n(H₂O) = m(H₂O) ÷ M(H₂O).
n(H₂O) = 0.2 g ÷ 18 g/mol.
n(H₂O) = 0.011 mol; amount of water.
Answer:
Chemically, table salt consists of two elements, sodium (Na) and chloride (Cl). Neither element occurs separately and free in nature, but are found bound together as the compound sodium chloride.
Explanation:
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Answer:
Explanation:
Hello,
In this case, by considering the mathematical definition of by mass percentage of a solute as shown below:
We are able to compute the mass of the solute in a 20% solution having 500 g of solution as follows:
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Answer: B
Explanation:i dont the explaniation but my dad is an expert in science so he told me the answer
This means that the amino acid is neutral due to the pH equals 7
