What is an anode? Explain.
1 answer:
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Answer : The radioisotope which has longest half-life and can be best to be used in powering planet and space exploration vehicle and travel farther will be Plutonium - 239 as it has the half life of 24065 years. Which in comparison to other radioisotopes is longest.
Hence, Plutonium - 239 can be the best suitable radioisotope for powering the planet and space exploration vehicle to travel farther.
sulphate ions and
ammonium ions are present in a 0.310 mole sample of (NH₄)₂SO₄ .
The International System of Units uses the mole (symbol: mol) as the unit of material quantity (SI). How many elementary entities of a particular substance are present in an object or sample is determined by the quantity of that material.
There are precisely 6.022140761023 elementary entities in a mole. An elementary entity can be an atom, a molecule, an ion, an ion pair, or a subatomic particle like an electron depending on what the substance is.
How this is calculated?
- The subscripts next to each atom allow you to find the number of moles of each element in the compound.
- Then, in every mole of (NH₄)₂SO₄ there are:
2 moles of ammonium (NH₄) ions and 1 mole of sulfate (SO₄) ions.
- Number of sulphate ions:
- Number of ammonium ions:
To know more about moles, refer:
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