4.658. Accuracy refers to how close the experimental value is to the actual value. Precision is how close a set of data is to one another.
The answer is A. want 8 total electrons in all shells
Answer:
Moles = 8 moles
Solution:
Molarity is given as,
Molarity = Moles / Volume of Solution ------ (1)
Data Given;
Molarity = 2 M
Volume = 4 L
Solving eq.1 for Moles,
Moles = Molarity × Volume of Solution
Putting values,
Moles = 2 mol.L⁻¹ × 4 L
Moles = 8 moles
Answer:
0.468 atm
Explanation:
just trust, you wouldn't be here otherwise.
<u>Answer:</u> The for the reaction is 15 kJ.
<u>Explanation:</u>
Hess’s law of constant heat summation states that the amount of heat absorbed or evolved in a given chemical equation remains the same whether the process occurs in one step or several steps.
According to this law, the chemical equation is treated as ordinary algebraic expressions and can be added or subtracted to yield the required equation. This means that the enthalpy change of the overall reaction is equal to the sum of the enthalpy changes of the intermediate reactions.
The given chemical reaction follows:
The intermediate balanced chemical reaction are:
(1) ( × 2)
(2)
(3)
The expression for enthalpy of the reaction follows:
Putting values in above equation, we get:
Hence, the for the reaction is 15 kJ.