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Sav [38]
3 years ago
9

A boy has a few bottles of soft drink in his restaurant. But ,unfortunately,these are not labelled.He has to serve the drinks on

the demand of customers.One customer wants acidic drink,another wants basic and the third one wants neutral drink.How will the boy decide it to be served to whom?
Chemistry
1 answer:
levacccp [35]3 years ago
7 0

Explanation:

The boy with the help of litmus paper can easily decide it as follows:

(i) The drink that would turn a red litmus to blue would surely be basic in nature.

(ii) The drink that turns a blue litmus to red is be acidic in nature.

(iii) The drink that would not be affected by both red and blue litmus would is  neutral in nature.

The test can be done with help of phenolphthalein or the methyl orange these reagents also show different color in different medium.

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30 its ASAP!!!! What is the volume, in liters, occupied by 0.485 moles of Oxygen gas at 23.0 oC and 0.980 atm?
USPshnik [31]
Use the universal gas formula

PV=nRT
where
P=pressure ( 0.980 atm)
V=volume (L)
T=temperature ( 23 ° C = 23+273.15 = 296.15 ° K)
n=number of moles of ideal gas (0.485 mol)
R=universal gas constant = <span>0.08205 L atm / (mol·K)

Substitute values,
Volume, V (in litres)
=nRT/P
=0.485*0.08205*296.15/0.980
= 12.0256 L
= 12.0 L (to three significant figures)

</span>
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