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cluponka [151]
3 years ago
14

The density of silver is 10.5 g/cm3. A piece of silver that occupies a volume of 42.5 cm3 would have a mass of ________ g.

Chemistry
2 answers:
tia_tia [17]3 years ago
8 0
M=D*V
D=10.5 g/cm³
V=42.5 cm³
m= 10.5 g/cm³ * 42.5 cm³ ≈ 446 g
m≈446 g
MA_775_DIABLO [31]3 years ago
8 0

Answer:

446.25 grams.

Explanation:

To calculate mass, we must multiply the volume by the density.

m = v. d

If the volume is 42.5 cm3 and the density is 10.5 g / cm3, we can multiply the two values and find the mass. Thus we will have:

m = 42.5 x 10.5

m = 446.25 grams

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2 years ago
What is the half-life in minutes of a compound if 75.0 percent of a given sample decomposes in 40.0 minutes? Assume first-order
yaroslaw [1]

Answer:

See below

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8 0
1 year ago
What are deltaTb and deltaTf for an aqueous solution that is 1.5g nacl in 0.250kg h2o? Given Kb=0.51 C/m and kr=1.86 C/m
bulgar [2K]

Answer:

T_f for given question is 2.79 and T_b is 0.52

\Delta T_b = I \times K_b \times m {i- vant hoff’s constant ; Kb- constant ; m molarity }

M = no. of moles of the solute present in one kg of solution

Let the weight of amount of solute be “w” and its molecular mass be “M”

Let the mass of the solvent in the given question be “x”

\Delta T_b = I \times K_b \times (w/M)/ x

\Delta T_b = I \times K_b \times w/Mx

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4 0
3 years ago
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