3). 150°C and 100 kPa
Gases behave ideally at high temperatures and low pressures (less intermolecular forces)
<h3><u>Answer</u>;</h3>
Cu2+, Zn2+, F-, and SO3^2-
<h3><u>Explanation</u>;</h3>
- Hydrolysis is a reaction of a substance or a compound with water.
- Anions such as Cl- and cations such as K+ and Ba2+ of strong acids and bases to not hydrolyze.
- For example; KOH and Ba(OH)2 are strong bases, and HCl is a strong acid.
- All the other ions will have a hydrolysis reaction with water and establish an equilibrium;
Cu2+ + HOH ↔ CuOH^+ + H+
Zn2+ + HOH ↔ZnOH^+ + H+
F- + HOH ↔ HF + OH-
SO3^2- + HOH ↔ HSO3^- + OH-
To measure a vector is to characterize both its direction (in one form or another) and a value (usually, a number). For example, velocity of a car moving on the road is a vector and, to measure it, we have to specify its direction (e.g. North or at angle 20 degrees from the North) and value (e.g. 40 m/sec).
The answer is true, catalysts increase rates by lowering the activation energy of a reaction. Catalysts lower the reaction energy and so the reaction occurs faster. Enzymes perform the role of biological catalysts. Most metabolic pathways of the body are controlled by enzymes. Enzymes by classification are proteins. <span />
Answer:
2.67g of NH4Cl are required
Explanation:
Molarity is an unit of concentration in chemistry defined as the moles of solute (In this case, NH4Cl), per liter of solution.
To prepare 100mL of a 0.50M are required:
100mL = 0.100L * (0.50 moles / L) = 0.0500 moles NH4Cl
As molar mass of NH4Cl is 53.491g/mol:
0.0500 moles * (53.491g / mol) =
<h3>2.67g of NH4Cl are required</h3>
