Rutherford's experiment was done to prove Thompson's Plum Pudding Model. In this model, the protons and electrons are both inside the nucleus. The atoms is neutral because the charges cancel out. Rutherford's hypothesis was that, when a beam of cathode rays hits the gold foil, all the light should pass through. If the Plum Pudding model was correct, that would have been the result. However, it wasn't.
Answer: el estudio de la síntesis, estructura, reactividad y propiedades del diverso grupo de compuestos químicos construidos principalmente de carbono
Explanation:Hope I helped:)
Eating good food gives us more energy.
Natural gas is used for heat and for cooking.
Electricity and coal are two forms of energy.
Renewable energy includes sea currents and solar power.
Geothermal energy is natural heat from the inside of the earth.
You need energy in order to move.
0.1 mL of the stock solution of the enzyme is taken and made up to 5.0 mL with 0.001M HCl in order to prepare a 50-fold diluted enzyme.
<h3>What is dilution?</h3>
Dilution is a process of making a solution of lower concentration from a solution of higher concentration by the addition of solvent to a given volume of the solution of higher concentration.
Dilution of solutions is done using the dilution formula in order to determine the given volume of diluent or stock solution required. The dilution formula is given below:
where:
- C1 = Initial concentration of enzyme
- C2 = Final concentration of enzyme
- V1 = Initial volume
- V2 = Final volume
For the enzyme dilution;
C1 = 1 mg/mL
C2 = 1/50 mg/ml = 0.02 mg/ml
V= ?
V2 = 5 ml
V1 = C2V2/C1
V1 = 0.02 * 5/1 = 0.1 mL
Therefore, 0.1 mL of the stock solution of the enzyme is taken and made up to 5.0 mL with 0.001M HCl in order to prepare a 50-fold diluted enzyme.
Learn more about dilution at: brainly.com/question/24881505
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Answer is: pH of a buffer is 4.64.
ck(CH₃COOH) = 0.45 M.
cs(CH₃COONa) = 0.35 M.
Ka = 1.8·10⁻⁵.
<span>pKa = -logKa.
</span>pKa = -log(1.8·10⁻⁵) = 4.75.
<span>Henderson–Hasselbalch equation: pH = pKa + log(cs/ck).
</span>pH = 4.75 + log(0.35M/0.45M).
pH = 4.75 - 0.11.
pH = 4.64.
pH (potential of hydrogen) is a numeric
scale used to specify the acidity or basicity an aqueous solution.
