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asambeis [7]
3 years ago
9

Your teacher gives you a concentrated solution of 12M nitric acid. Since that

Chemistry
1 answer:
Ostrovityanka [42]3 years ago
8 0

Answer:

26.7 mL

Explanation:

M1*V1 = M2*V2

M1 = 12M

V1=?

M2 = 2.5M

V2=128 mL

12M*V1 = 2.5M*128 mL

V1 = 2.5*128/12 mL≈ 26.7 mL

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This thermogram shows a person using a computer. Complete the sentence to describe the flow of thermal energy between the person
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<h2>Answer : The thermal energy will flow from the computer to the person.</h2><h3>Explanation :</h3>

Usually computer are such devices which converts electrical energy into thermal energy and then it gets transferred to the person. The energy flows from the higher amount to lower amount. In this case, computer is producing higher thermal energy than the person that's the reason for the flow of energy from computer to the person.

4 0
3 years ago
Read 2 more answers
If the pH of a 1.00-in. rainfall over 1800 miles2 is 3.70, how many kilograms of sulfuric acid, H2SO4, are present, assuming tha
NARA [144]
There are 2.32 x 10^6 kg sulfuric acid in the rainfall. 

Solution: 
We can find the volume of the solution by the product of 1.00 in and 1800 miles2: 
     1800 miles2 * 2.59e+6 sq m / 1 sq mi = 4.662 x 10^9 sq m 
     1.00 in * 1 m / 39.3701 in = 0.0254 m  
     Volume = 4.662 x 10^9 m^2 * 0.0254 m
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                  = 1.184 x 10^11 Liters 

We get the molarity of H2SO4 from the concentration of [H+] given by pH = 3.70: 
     [H+] = 10^-pH = 10^-3.7 = 0.000200 M 
     [H2SO4] = 0.000100 M  
 
By multiplying the molarity of sulfuric acid by the volume of the solution, we can get the number of moles of sulfuric acid: 
     1.184 x 10^11 L * 0.000100 mol/L H2SO4 = 2.36 x 10^7 moles H2SO4 

We can now calculate for the mass of sulfuric acid in the rainfall: 
     mass of H2SO4 = 2.36 x 10^7 moles * 98.079 g/mol
                               = 2.32 x 10^9 g * 1 kg / 1000 g
                               = 2.32 x 10^6 kg H2SO4
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4 years ago
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The product of alpha decay of the Nobelium isotope 259No is
Svet_ta [14]

Answer:

Nobelium is made by the bombardment of curium (Cm) with carbon nuclei. Its most stable isotope, 259No, has a half-life of 58 minutes and decays to Fermium (255Fm) through alpha decay or to Mendelevium (259Md) through electron capture.

Explanation:

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3 years ago
Suppose that the C=O group in a peptide bond can be regarded as isolated from the rest of the molecule. Given that the force con
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Answer:

a) v = 1497.2 cm^-1

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In the attached image is the procedure explained to reach the answer.

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Which of the following is included in the study of Geology?
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D: the composition of the materials that make up the planet
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