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Marysya12 [62]
3 years ago
11

Which property of a substance can be determined using a pH indicator?

Physics
2 answers:
Ann [662]3 years ago
8 0

Answer:

a) Acidity

<h3><u>More</u><u> </u><u>to</u><u> </u><u>know</u><u> </u></h3>

  • The pH scale is a mixture of indicator which on dissolving indicate whether the substances is acidic in nature or basic .

  • The value between 1 to 7 is acidic

  • The value between 7 to 14 is basic

  • The value 7 is neutral

  • Acids are sour in taste and turn blue litmus ( indicator) to red

  • Base are bitter in taste and turn red litmus to blue.

  • Salts are neutral and obtain by the reaction between acid and bases.
Gekata [30.6K]3 years ago
3 0

Answer:

Acidity

Explanation:

pH measures how acidic or basic a substance is.

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Answer:

(a) 2.33 A

(b) 15.075 V

Explanation:

From the question,

The total resistance (Rt) = R1+R2 = 3.85+6.47

R(t) = 10.32 ohms.

Applying ohm's law,

V = IR(t)..........equation 1

Where V = Emf of the battery, I = current flowing through the circuit, R(t) = combined resistance of both resistors.

Note: Since both resistors are connected in series, the current flowing through them is the same.

Therefore,

I = V/R(t)............. Equation 2

Given: V = 24 V, R(t) = 10.32 ohms

Substitute these values into equation 2

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I = 2.33 A.

Hence the current through R1 = 2.33 A.

V2 = IR2.............. Equation 3

V2 = 2.33(6.47)

V2 = 15.075 V

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A projectile is fired directly upward from the ground with an initial velocity of 112 f/sec its distance s above the ground afte
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Answer:

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