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SVEN [57.7K]
3 years ago
14

It took 1.5 hours for a bus to go from one city to the next. The bus traveled at an average velocity of 52 mph, west. How far ap

art were the two cities?
Chemistry
2 answers:
ki77a [65]3 years ago
8 0
78 miles. trust me, i just did this question on my chem and physics quiz
kozerog [31]3 years ago
6 0
The answer is 78 mph

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2 years ago
Describe 2 ways of salting out proteins ​
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2 years ago
In terms of energy, how would you classify the following chemical reaction? 2CuO + 315 kJ → 2Cu + O2
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6 0
3 years ago
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Determine the mass of CuSO4 • 5H20 that must be used to prepare 250mL of 2.01 M CuSO4(aq).
mario62 [17]

Given parameters:

Volume of CuSO₄ = 250mL

Concentration of CuSO₄ = 2.01M

Unknown:

Mass of CuSO₄.5H₂O = ?

To solve this problem, we must write the chemical relationship between both species.;

             CuSO₄.5H₂O  →   CuSO₄ + 5H₂O

Now that we know the expression, it is possible to solve for the unknown mass.

First find the number of moles of CuSO₄;

         Number of moles  = Concentration x Volume

Take 250mL to L so as to ensure uniformity of units;

           Volume  = 250 x 10⁻³L

  Input the parameters and solve for number of moles;

        Number of moles  = 250 x 10⁻³  x  2.01 = 0.5mol

From the equation;

             1 mole of CuSO₄ is produced from 1 mole of CuSO₄.5H₂O  

So  0.5 moles of CuSO₄ will be produced from 0.5 moles of CuSO₄.5H₂O

Now let us find the molar mass of CuSO₄.5H₂O = 63.6 + 32 + 4(16) + 5(2x1 + 16)  = 249.6g/mole

Mass of CuSO₄.5H₂O = number of moles x molar mass

                                      = 0.5 x 249.6

                                     = 124.8g

The mass of CuSO₄.5H₂O is 124.8g

5 0
3 years ago
What color of light is transmitted and refracted by a prism first?
nevsk [136]

Answer:

The red light is refracted least. The violet light is refracted most.

Explanation:

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3 years ago
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