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Yakvenalex [24]
3 years ago
7

In a relationship with two variables, when one variable becomes larger by a given factor and the other becomes smaller by the sa

me factor, the variables are said to be________related a) inversely b) equally c) Directly
Chemistry
2 answers:
mafiozo [28]3 years ago
7 0
Inversely -think of 1/2 and 2/1 as being inverse.  So is 1/3 and 3/1
Murljashka [212]3 years ago
7 0

The correct answer its inverserly

hope it helps

can i get brainliest please??

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Proper significant figure: 27.01 + 14.369
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Answer:

<h2>put the bigger number on top then add </h2>

Explanation:

41.369

8 0
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A weather forecast shows 35 m/h on the weather map. Which weather component does this number represent?
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3 years ago
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Ksivusya [100]
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8 0
2 years ago
You have 500.0 ml of a buffer solution containing 0.30 m acetic acid (ch3cooh) and 0.20 m sodium acetate (ch3coona). what will t
Nataly [62]
First, we should get moles acetic acid = molarity * volume

                                                                =0.3 M * 0.5 L

                                                                =  0.15 mol

then, we should get moles acetate = molarity * volume

                                                           = 0.2 M * 0.5L

                                                           = 0.1 mol

then, we have to get moles of OH- which added:

moles OH- = molarity  * volume

                   = 1 M    * 0.02L

                  = 0.02 mol

when the reaction equation is:


                 CH3COOH  +  OH-  → CH3COO-   +  H2O


moles acetic acid after adding OH- = (0.15-0.02) 
                                             
                                                            =  0.13M                                       

moles acetate after adding OH- =  (0.1 + 0.02)

                                                      =   0.12 M

Total volume = 0.5 L + 0.02 L= 0.52 L

∴[acetic acid] = moles acetic acid after adding OH- / total volume

                        = 0.13mol / 0.52L

                       = 0.25 M

and [acetate ) = 0.12 mol / 0.52L
 
                        = 0.23 M

by using H-H equation we can get PH:

PH = Pka + ㏒[salt/acid]

when we have Ka = 1.8 x 10^-5

∴Pka = -㏒Ka 

        = -㏒ 1.8 x 10^-5

       = 4.7

So by substitution:

∴ PH = 4.7 + ㏒[acetate/acetic acid]

         = 4.7 + ㏒(0.23/0.25)

        = 4.66
6 0
2 years ago
Light of frequency 3.62 x 1015 Hz
vladimir1956 [14]

The kinetic energy that the liberated electron has in eV based on the given values is :

10.28 eV.

<h3>Explanation:</h3>
  • 1 eV is the kinetic energy gained by an electron or proton when acted upon by a 1 volt potential difference. E = QV is the formula for energy in terms of charge and potential difference.

A photoelectron's maximum kinetic energy is given by

                     Emax = hf - W

  • where h is Plank's constant,
  • f is the incident photon's frequency, and
  • W denotes the metal surface's work function.

here given,

f = 3.62 x 10¹⁵ Hz

W = 4.70 eV

 by recalling the equation for a photoelectron's maximum kinetic energy with given values,

  Emax = hf - W

             = ((4.14 × 10⁻¹⁵eV.s)(3.62 x 10¹⁵ Hz)) - (4.70 eV)

             = 10.28 eV

As a result, we discovered that the maximum kinetic energy of electrons is 10.28eV.

To learn more about kinetic energy of electrons refer to :

brainly.com/question/21208918

#SPJ13

8 0
1 year ago
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