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snow_lady [41]
2 years ago
15

Density is a ___ that ____ the ____ of an object to its ______

Chemistry
2 answers:
Bezzdna [24]2 years ago
8 0

Answer:

Density is a measure that measures the mass of an object to its volume

Tju [1.3M]2 years ago
7 0

Answer:

density is a PROPERTY that DESCRIBES<u> </u>the MASS of an object to its VOLUME.

Explanation:

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2 years ago
A 250-mL aqueous solution contains 1.56 10–5 g of methanol and has a density of 1.03 g/mL. What is the concentration in ppm?
Hoochie [10]
First, calculate for the mass of the aqueous solution by multiplying the given volume (in mL) by the density (in g/mL). In mathematical equation, that is,

        m = ρV

where m is mass, ρ is density, and V is volume. Substituting the known values,

      m = (1.03 g/mL)(250 mL) = 257.5 g

To get the concentration in ppm, divide the given mass of methanol by the mass of the solution. Note that the parts-per million (ppm) is equal to mass of solute in milligram(mg) divided by the mass of solution in kilogram (kg)

      C (in ppm) = (1.56 x 10^-6 g)(1000 mg/1 g)   / (257.5 g)(1 kg/1000 g)

Simplifying,
     C (in ppm) = (1.56 x 10^-3 mg)/ 0.2575 kg

     C (in ppm) = 0.00606 ppm

<em>Answer: 0.00606 ppm</em>
     
7 0
2 years ago
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I think 5.50 M x 35.0 mL x molar mass of RbOH = mass (g)
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