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il63 [147K]
3 years ago
10

A proton and an electron in a hydrogen atom are separated on the average by about 5.3 × 10−11 m. What is the magnitude of the el

ectric field set up by the proton at the location of the electron? The value of the Coulomb constant is 8.99 × 109 N · m2/C2. Answer in units of N/C
Chemistry
1 answer:
AysviL [449]3 years ago
4 0

Answer:

5.10¹¹ N/C

Explanation:

As we have a proton and a neutron, we can consider that they both have the same charge, this is:

e- = e+ = |1,6x10⁻¹⁹ C| , this number is in absolute value

Then, the formula needed to calculate the magnitude of the electric field from a charged particle is:

E= kqQ/r²

Where:

K= Coulomb constant

Q= charge  

r = distance between two charges

Then:  

E= 8.99x10⁹N/C²*(1.6x10⁻¹⁹C)/(5.3x10⁻¹¹m)²

E=5.12x1011 N/C

It is important that this value is a magnitude, it does not have any sign (positive or negative), for the magnetic field

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How many elements are in C8H3NaBr12?
dimaraw [331]

Answer:

I don’t get it you have to go more into detail lol then I’ll answer

Explanation:

6 0
3 years ago
AlCl3 + NaOH —> Al(OH)3 + NaCl
victus00 [196]

Hey there!

AlCl₃ + NaOH → Al(OH)₃ + NaCl

Balance OH.

1 on the left, 3 on the right. Add a coefficient of 3 in front of NaOH.

AlCl₃ + 3NaOH → Al(OH)₃ + NaCl

Balance Cl.

3 on the left, 1 on the right. Add a coefficient of 3 in front of NaCl.

AlCl₃ + 3NaOH → Al(OH)₃ + 3NaCl

Balance Na.

3 on the left, 3 on the right. Already balanced.

Balance Al.

1 on the left, 1 on the right. Already balanced.

Our final balanced equation: AlCl₃ + 3NaOH → Al(OH)₃ + 3NaCl

Hope this helps!

6 0
4 years ago
Why is our use of electric power increasing?
miv72 [106K]
Answer: leaving it on

Step by step
3 0
3 years ago
Sodium tripolyphosphate is used in detergents to make them effective in hard water. calculate the oxidation number of phosphorus
Fed [463]
Step 1:
           
Write molecular Formula,

                                                Na₅P₃O₁₀
Step 2:
         
Assign Oxidation number to Na (which is +1) and O (which is -2), and X (unknown) for P.
                                               (+1)₅ + (X)₃ + (-2)₁₀  = 0

Zero means overall charge on molecule is zero (Neutral).

Step 3:
           
Now solve for X,
                                               (+5) + (X ÷ 3) + (-20)  =  0

                                                X ÷ 3  =  -5 + 20
                                
                                                X ÷ 3  =  +15

                                                      X  =  +15 ÷ 3

                                                      X  =  +5

Result:
           Oxidation number of P is +5.                                 
3 0
3 years ago
A restaurant is trying to decide whether it should serve its customers coffee
san4es73 [151]

Coffee cools more quickly in a ceramic mug than in a Styrofoam

cup.

Explanation:

Styrofoam is a good insulator, thus for keeping the coffee warm for longer, it is a good choice than ceramic. The process involved in the control of heat dissipation employs the fact that the vapours in the form of gas are entrapped within, they lessen the conduction process between the molecules as a result molecules do not collide hence no energy releases or exchange takes place.

Styrofoam cups are made up of polystyrene foam. As a result of high insulation at styrofoam body conduction is not possible so coffee is warmer for longer.

6 0
3 years ago
Read 2 more answers
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