Answer:
2.14x10¹⁹ atoms of Cu were deposited
Explanation:
The increased in mass of the glass slide is due the deposition of copper.
That means the mass of copper deposited is 2.26mg = <em>2.26x10⁻³g Cu</em>
To know the copper atoms we need to convert this mass to moles of Cu using molar mass of copper (63.546g/mol), and these moles are converted to atoms using Avogadro's number (6.022x10²³ atoms = 1 mole)
<em>Moles Cu:</em>
2.26x10⁻³g Cu * (1 mol / 63.546g) = 3.556x10⁻⁵ moles Cu
<em>Atoms Cu:</em>
3.556x10⁻⁵ moles Cu * (6.022x10²³ atoms / 1 mole) =
2.14x10¹⁹ atoms of Cu were deposited
Answer: <u>Volume</u>
Explanation:
Cos Milky said it. Milky smart.
Answer:
answer is gold
Explanation:
bcz gold is having a property of malleable so it can be drawn into thin sheets
Answer:
30 liters
Explanation:
Since a pressure, volume, and temperature is given, this problem involves the combined gas law:
1. First, identify the given values. Make sure they are all the same units, and temperature is always in Kelvin.
<em>Your initial values:</em>
P1 = 12 atm
V1 = 23 L
T1 = 200 K
<em>Your final values:</em>
P2 = 14 atm
V2 = ?
T2 = 300 K
2. Now, plug it into the combined gas law formula. If it is easier for you, then you can rearrange the formula for V2.
3. Lastly, solve for V2.
1.38*300 = 14V2
414 = 14V2
V2 = 29.57142857142857
With sig figs, your final volume would be: 30L
Answer:
The answer to your question is : 16.9 g of Ag
Explanation:
Data
26 g Ag
10.8 g of Sn
2.4g Cu
0.8 Zn
Ag = ? in 26 g of sample
Total mass in the amalgam = 26 + 10.8 + 2.4 + 0,8 = 40 g
Rule of three
40 g of sample -------------- 26 g of silver
26 g of sample -------------- x
x = (26 x 26) / 40
x = 16.9 g of Silver