When the balanced reaction equation is:
P4O10 + 6H2O→ 4 H3PO4
when we have the mass of P4O10 = 10 g and the molar mass of P4O10=284 g/mol & we have the molar mass of H3PO4 =98 g/mol so we can get the mass of H3PO4 by substitution by:
mass of H3PO4 = (mass of P4O10)/(molar mass of P4O10) * 4(mol of H3PO4)*molar mass of H3PO4
∴mass of H3PO4 = (10 / 284) * 4 * 98 = 13.8 g
It increases across a period and decreases down a group. A good way to remember this is that fluorine is the most electronegative atom, and it's to the top right of the table.
Rubidium Chromate is the compound
Answer: Option C.
The waste from these plants is safe, and its storage and disposal are simple
Explanation:
Nuclear power plants produce waste when producing electricity and these waste are not really harmful as you think, they are stored well before disposing appropriately.
Once the waste is removed the reactor, the wastes are cool down in storage pool, they are moved to dry caske which is a concrete storage and stores it for a long time and can be dispose until the site is available for it.
Answer:
45.165× 10²³ NH₄⁺ ions
Explanation:
Given data:
Number of NH₄⁺ ions present = ?
Moles of (NH₄)₃PO₄ = 2.5 mol
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
For example,
1 mole of (NH₄)₃PO₄ = 3 mole NH₄⁺
In 2.5 moles of (NH₄)₃PO₄ = 2.5× 3 = 7.5 moles of NH₄⁺
Number of ions of NH₄⁺ in 2.5 moles of (NH₄)₃PO₄:
7.5 mole of NH₄⁺ × 6.022 × 10²³ NH₄⁺ ions / 1 mol
45.165× 10²³ NH₄⁺ ions