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zloy xaker [14]
3 years ago
6

An object has a mass of 48g and it has a height of 5cm, a width of 2cm and a length of 5cm.

Chemistry
1 answer:
Ainat [17]3 years ago
3 0

Answer:

0.96g/cm³

Explanation:

Given parameters:

Mass of the object  = 48g

Height of the object  = 5cm

Width of the object  = 2cm

Length of the object = 5cm

Unknown:

Density = ?

Solution:

Density of a body is the mass per unit volume of the body.

  Mass is the amount of matter in a substance

  Volume is the space such a body occupies

To find the volume;

     Volume  = l x w x h

 Insert the parameters and solve;

    Volume = 5cm x 2cm x 5cm = 50cm³

  Density  = \frac{mass}{volume}

Density = \frac{48 }{50}   = 0.96g/cm³

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3 years ago
The molar mass of glucose is 180.2 g/mol. How many grams of glucose will be produced when 132.0 g of CO2 reacts with an excess o
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Answer:

The mass in grams of glucose produced when 132.0 g of CO2 reacts with an excess of water is 90.1 grams

Explanation:

The chemical equation for the reaction is

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The molar mass of CO₂ = 44.01 g/mol

There fpre 132.0 g contains 132.0/44.01 moles or ≅ 3 moles

However since 6 moles of CO₂ produces 1 mole of O₂, then 3 moles of CO₂ will prduce 1/6×3 or 0.5 moles of C₆H₁₂O₆

and since the molar mass (or the mass of one mole) of C₆H₁₂O₆ is 180.2 grams/mole then 0.5 mole of C₆H₁₂O₆ will have a mass of

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7 0
3 years ago
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'swap'
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'drop' 
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What volume of 12.0 M sulfuric acid is needed to prepare 300.0 mL of 2.50 M solution?
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Answer:

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