The energy required to completely separate the ions from a solid is(A) free energy
(B) lattice energy
(C) kinetic energy
(D) activation energy
(E) ionization energy

Answers

Answer 1

Answer: The answer is (B.) lattice energy

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Josh prepares a solution by mixing sodium nitrate with water. To calculate the molarity of the solution, josh should calculate the moles of which substance,and why?

Answers

There are a number of ways to express concentration of a solution. This includes molarity. Molarity is expressed as the number of moles of solute per volume of the solution. Josh should calculate the moles of the sodium nitrate by dividing the mass with the molar mass of sodium nitrate. This is because it is the solute in this problem.

Answer:

the answer is sodium nitrate because it is solute

Explanation

thats what is correct I assure you.

What is the % yield of CO2 if 10g of CO produces 12.8 g CO2?
2CO + O2 → 2CO2

Answers

Moles CO = 10.0 g / 28.01 g/mol = 0.357
the ratio between CO and CO2 is 2 : 2 ( or 1 : 1) so we would get 0.357 mole of CO2 ( 100% yield)

mass CO2 = 0.357 mol x 44.0098 g/mol = 15.7 g ( theoretical yield)

% yield = 12.8 x 100 / 15.7 = 81.5

Hope this helps.

The % yield is 81.5 :DDDDDD

What is the volume of 2.10 moles of chlorine gas (Cl2) at 273 K and 1.00 atm?10.7 L
22.4 L
47.1 L
82.0 L