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artcher [175]
3 years ago
9

An acidic solution could have a pH of A) 14 B) 10 C) 3 D) 7

Chemistry
1 answer:
Alenkinab [10]3 years ago
8 0

Answer:

Option (C) 3

Explanation:

The pH scale is a scale that ranges from 0 to 14. The pH reading has various notifications. These notifications are as follow:

1. If the pH reads between 0 and 6, then the solution is acidic.

2. If the pH reads 7, then the solution is neutral.

3. If the pH reads between 8 and 14, then the solution is basic.

With the above information, option C is the correct answer to the question.

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Prior to the Industrial Revolution, the majority of the population in England consisted of the light colored variation. The dark
Bad White [126]

Dark colored moths survived better in the Industrial Revolution because their dark color helped them camouflage in soot. When the industrial revolution ended there wasn't as much soot, so the light colored moths now had a better chance of survival.

6 0
3 years ago
The normal boiling point of methanol is 64.7∘c and the molar enthalpy of vaporization of 71.8kj/mol. the value of δs when 1.11 m
maxonik [38]
The answer is 236.5 J/K

According to Δ G formula:

ΔG = ΔH - TΔS

when ΔG is the change in free energy (KJ)

and ΔH is the change in enthalpy (KJ)= ΔHvap * moles

                                                              = 71.8 KJ/mol * 1.11 mol
                                                             
                                                              =   79.7 KJ

and T is the absolute temperature (K)= 64 °C + 273°C = 337 K

Δ S is the change in entropy  KJ/K

by substitution:

when at equilibrium ΔG = 0 

∴ΔS = ΔH / T

       =79.7 KJ/ 337 K

     = 0.2365 KJ/K

     = 236.5 J/K


6 0
3 years ago
which of the following parts of a circuit would be considered a load ? Justify your answer by explaining your choices • light •
QveST [7]
The answer to the question given above is letter A. Light
 
Light  is considered a load of the parts of a circuit. <span>The load in a circuit can be any electrical device that converts electrical energy into other usable forms of energy such as a <span>light bulb.

>></span></span><span>Energy sources include batteries and generating stations
>>switch-</span><span>is used in electric circuits to allow the circuit to be turned on and off.</span>
6 0
3 years ago
A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4
san4es73 [151]

Answer:

83.20 g of Na3PO4

Explanation:

1 mole of Na3PO4 contains 3 moles of Na+.

Mole of Na ion to be prepared = Molarity x volume

                 = 0.700 x 725/1000

                     = 0.5075 mole

If 1 mole of Na3PO4 contains 3 moles of Na ion, then 0.5075 Na ion will be contained in:

           0.5075/3 x 1 = 0.1692 mole of Na3PO4

mole of Na3PO4 = mass/molar mass = 0.1692

Hence, mass of Na3PO4 = 0.1692 x molar mass

                                     = 0.1692 x 163.94

                                        = 83.20 g.

83.20 g of Na3PO4 will be needed.

3 0
3 years ago
Read 2 more answers
What type of heat transfer warms our oceans and atmosphere
Arisa [49]
The answer is Conduction. I hope this helps!
3 0
3 years ago
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