Answer:
3.2×10^-3 mol
Explanation:
The equation for molarity is M= n/L. Where "M" is Molarity, "n" is the number of moles of solute, and "L" is the total liters in solution.
The question gives you the volume in mL, so to convert "mL" to "L" you need to divide by 1000. (6.70mL/ 1000L)= 0.0067L.
Now you can plug the numbers into the equation. 0.480M= n/ 0.0067L), multiply (0.480M×0.0067L)= 0.003216 mol. The scientific notation is 3.2×10^-3, 10^-3 because you move the decimal back three times and 3.2 because there are 2 sig figs.
ʜᴇʟʟᴏ ᴛʜᴇʀᴇ!
In his version of the periodic table, Mendeleev based his arrangement of the elements on an element's atomic mass.
нσρє тнιѕ нєℓρѕ уσυ!
gσσ∂ ℓυ¢к :)
нανє α gяєαт ∂αу
- нαηηαн ❤
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Answer:-
5.554 litres
Explanation:-
Initial Volume V 1 = 5.00 litres
Initial temperature T 1 = 34 C + 273 = 307 K
Final temperature T 2 = 68 C + 273 = 341 K
Using the relation of Charles Law (V 1 / T 1) = (V 2 / T 2)
New Volume V 2 = V1 x T2 / T1
Plugging in the values
V2 = 5.00 litres x 341 K / 307 K
= 5.554 litres.
Answer:
a. True
Explanation:
The data curve for OCI-/H3O appears to be similar to C2H3O2-/H3O because protons have not dissociated with conjugate base. This conjugate base is strong and hold proton in solution while acids try to dissociate it.
