Answer:
0.0734 grams LiOH
Explanation:
The molarity formula looks like this:
Molarity (M) = moles / volume (L)
You are given the molarity and volume (in mL). Therefore, you can plug these values into the equation and solve for moles (after you convert from mL to L).
25 mL / 1,000 = 0.025 L
0.125 M = moles / 0.025 L
(0.125 M) x (0.025 L) = moles
0.003125 = moles
After using the molarity formula, we know that 0.003125 moles LiOH are needed to satisfy these conditions. Now, we can convert this to grams using the molar mass of LiOH. This can be determined using the values from the periodic table. Remember to write your conversion in a way that allows for the units to cancel out.
Molar Mass (LiOH) = 6.941 g/mol + 16.00 g/mol + 1.008 g/mol
Molar Mass (LiOH) = 23.499 g/mol
0.003125 moles 23.499 g
------------------------ x ------------------- = 0.0734 grams LiOH
1 mole
<span>Scientists ignore the forces of attraction between particles in a gas under ordinary conditions</span><span> because the particles in a gas are apart and moving fast, rather than clustered and moving slow, therefore the forces of attraction are too weak to have a visible effect.</span>
Answer:metals and non metals
Example
Ca and Cl form the ionic compound calcium chloride (CaCl2)
Answer:
The answer to your question is pH = 1.93, acid.
Explanation:
Data
[OH⁻] = 8.6 x 10⁻¹³
pH = ?
Process
pH measures the [H⁺] concentration. The pH scale goes from 0 to 14. If the pH of a solution goes from 0 to 6.9 the solution is acidic, it the pH = 7.0, the solution is neutral or if the pH is between 7.1 and 14 the solution is basic.
1.- Calculate the pOH
pOH = -log [OH⁻]
-Substitution
pOH = -log[8.6 x10⁻¹³]
pOH = 12.06
2.- Calculate the pH
pH + pOH = 14
-Solve for pH
pH = 14 - pOH
-Substitution
pH = 14 - 12.06
-Result
pH = 1.93
3.- Conclusion
This solution is an acid.
Answer:
true
Explanation:
Hotter things have more heat energy than colder things. That's because the atoms or molecules move around faster in hot things (red, right) than they do in cold things (blue, left). ... The more heat you supply, the faster the molecules move and the further apart they get.