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3 years ago

Identify the parts of an experiment in the scenario below.

Chemistry

1 answer:

4vir4ik [10]3 years ago

7 0

Constants is the answer sike bruh ion even know bout this

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based on the cause and effect relationship between the magnets, which phenomenon is the teacher modeling for her students.

faltersainse [42]

Answer:

Someone breaking up.

Explanation:

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2 years ago

Identify the solute with the highest van't Hoff factor. And how do you determine which one is highest?

german

Answer : The correct option is, (A) $AlCl_3$

Explanation :

Van't Hoff factor : It is defined as the ratio of the experimental value of the colligative property to the calculated value of the colligative property.

We can determine the van't Hoff factor by the association and dissociation of the compound.

(A) $AlCl_3$

It is an electrolyte that dissociates to give aluminum ion and chloride ion.

The dissociation of $AlCl_3$ will be,

$AlCl_3\rightarrow Al^{3+}+3Cl^{-}$

So, Van't Hoff factor = Number of solute particles = $Al^{3+}+3Cl^{-}$ = 1 + 3 = 4

(B) $KI$

It is an electrolyte that dissociates to give potassium ion and iodide ion.

The dissociation of $KI$ will be,

$KI\rightarrow K^{+}+I^{-}$

So, Van't Hoff factor = Number of solute particles = $K^{+}+I^{-}$ = 1 + 1 = 2

(C) $CaCl_2$

It is an electrolyte that dissociates to give calcium ion and chloride ion.

The dissociation of $CaCl_2$ will be,

$CaCl_2\rightarrow Ca^{2+}+2Cl^{-}$

So, Van't Hoff factor = Number of solute particles = $Ca^{2+}+2Cl^{-}$ = 1 + 2 = 3

(D) $MgSO_4$

It is an electrolyte that dissociates to give magnesium ion and sulfate ion.

The dissociation of $MgSO_4$ will be,

$MgSO_4\rightarrow Mg^{2+}+SO_4^{2-}$

So, Van't Hoff factor = Number of solute particles = $Mg^{2+}+SO_4^{2-}$ = 1 + 1 = 2

(E) Non-electrolyte

The dissociation non-electrolyte is not possible. So, the Van't Hoff factor will always be, 1.

Hence, the highest van't Hoff factor of solute is, $AlCl_3$

7 0

3 years ago

you have a 500g block of butter at home. You found out that its volume its 555l. What is the density of the butter?

Ivenika [448]

Density will be 0.9009 g/L

7 0

3 years ago

What is the use of oxyacetylene flame

harkovskaia [24]

Answer:

An oxyacetylene torch can also be used for welding. When welding with an oxyacetylene torch, the flame is used to produce molten metal along the edge of two work pieces.

hope this helped

if you want plz give brainliest to help you more

7 0

2 years ago

Read 2 more answers

An air compressor takes atmospheric air (think about what pressure it is at) and pressures it up to 68 (psig). In the process, i

Aleks [24]

Answer:

5.19 m³

Explanation:

Data Given:

initial Pressure P1 = atmospheric pressure

Reported atmospheric pressure = 14.696 psi

Final pressures P2 = 68 psi

initial Temperature T1 = 26 °C

final Temperature T2 = 48 °C

initial Volume V1= 13 m³

final Volume V2 = ?

Solution:

Formula will be used

P1 V1 / T1 = P2 V2 / T2

To calculate volume rearrange the above formula

V2 = (P1 V1) T2 / T1 P2 . . . . . . . .(1)

put values in equation 1

V2 = (14.696 psi x 13 m³) 48 °C / 26 °C x 68 psi

V2 = (191.05 psi m³) 48 °C / 1768 °C psi

V2 = (9170.3 psi m³ °C / 1768 °C psi

V2 = 5.19 m³

So, final volume is 5.19 m³

7 0

3 years ago