Au (gold) will not give up its electrons to Ag(silver) because, Au is after silver in the activity series of metals.
Answer:
There are 0.195 moles.
Explanation:
1 mol of <em>any gas </em>under STP (meaning 1 atm and 273 K) will occupy 22.4 liters.
With the information above in mind, we can <u>calculate how many moles will occupy 4.38 liters</u>:
- 4.38 L * 1 mol / 22.4 L = 0.195 mol
In 4.38 liters of a gas at STP there will be 0.195 moles.
Answer:
hey discover an
interesting pattern in the
world that no one else
has described, but they
cannot explain what is
causing the pattern?
Explanation:
The number of moles of KF needed to prepare the solution is 3 moles
<h3>What is molarity?</h3>
Molarity is defined as the mole of solute per unit litre of solution. Mathematically, it can be expressed as:
Molarity = mole / Volume
<h3>How to determine the mole of KF </h3>
- Volume = 2500 mL = 2500 / 1000 = 2.5 L
- Molarity = 1.2 M
- Mole of KF =?
Molarity = mole / Volume
1.2 = mole of KF / 2.5
Cross multiply
Mole of KF = 1.2 × 2.5
Mole of KF = 3 moles
Learn more about molarity:
brainly.com/question/9468209
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