Explanation:
The steps given in the question are incorrect.
Step 1 should be convert atoms to moles (n). Step 2 should be convert moles (n) to mass (m).
Step 1
Use dimensional analysis to convert the number of atoms to moles.
1 mole atoms = 6.022 × 10²³ atoms
n(Ag) = 2.3 × 10²⁴ Ag atoms × (1 mol Ag/6.022 × 10²³ Ag atoms) = 3.8193 mol Ag
Step 2
Convert the moles of Ag to mass.
mass (m) = moles (n) × molar mass (M)
n(Ag) = 3.8193 mol Ag
M(Ag) = atomic weight on the periodic table in g/mol = 107.868 g Ag/mol Ag
m(Ag) = 3.8193 mol × 107.868 g/mol = 412 g Ag = 410 g Ag rounded to two significant figures
The mass of 2.3 × 10²⁴ Ag atoms is approximately 410 g.
Basically, since buildings are made from limestone, acids react with the limestone in the building, breaking it down continually to form salt thereby causing in the destruction of the building.ie
CaCO3 + H2SO4
--> CaSO4 + H2CO3
H2CO3 --> CO2 gas + H2O
Answer:
2.7 x 10^-19 J
Explanation:
The formula needed for this problem is
E = hν
where E = energy, h = Planck's constant = 6.626x10^-34 and ν is the frequency
c = λν
where c = speed of light = 3x10^8, and λ = wavelength
3x10^8 = 7.35x10^-7 . ν
ν = 4.08 x 10^14 Hz
E = 6.626x10^-34 . 4.08x10^14 = 2.7 x 10^-19 J
Answer:
See explanation for accurate matching
Explanation:
The mass of a salt in grams that will dissolve in 100 mL of water.--- solubility
A solution that has dissolved the maximum amount of a compound at a given temperature.---- saturated solution
Any further addition of salt will remain undissolved-----supersaturated solution
The maximum number of moles of a salt that will dissolve in 1 L of solution----molarity
A decrease in the solubility of an ionic compound as a result of the addition of a common ion..... Common ion effect
The product of the molarities of the dissolved ions, raised to a power equal to the ion's coefficient in the balanced chemical equation........solubility product.