Full Question;
What volume of a 0.150 M solution of KOH must be added to 450.0 mL of the acidic solution of 300ml of 0.450M HCL to completely neutralize all of the acid? Express the volume in liters to three significant figures.
Answer:
0.9l
Explanation:
First thing's first, we have to write out the balanced chemical equation.
KOH(aq) + HCl(aq) → KCl(aq) + H2O(l)
Potassium hydroxide, KOH, and hydrochloric acid, HCl, react in a 1:1 mole ratio to produce aqueous potassium chloride, KCl, and water.
From the reaction;
Na = Nb
Where Na = Number of moles of acid
Na = Ca * Va = 0.450 * 0.300 = 0.135
Nb = Cb * Vb = Cb * 0.150
Na = Cb * 0.150
0.135 = Cb * 0.150
Cb = 0.135 / 0.150 = 0.9L
Answer:
When chlorine and bromine atoms come into contact with ozone in the stratosphere, they destroy ozone molecules.
Explanation:
Pretty sure after 1 week you've found the answer at some point...
but Global winds help to distribute heat and water vapor around the Earth, which influences temperature and precipitation patterns around the entire globe.<span> Global winds are caused by pressure differences in the atmosphere from warm air rising to the poles. The flowing air carries water vapor and creates specific weather patterns, such as increased rainfall in the tropics.</span>
Yes it is an acid and it is base