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GuDViN [60]
4 years ago
14

Which is a use of fiber optics? correcting vision problems transmitting telephone signals gathering light from distant objects w

riting and reading CDs and DVDs
Chemistry
2 answers:
iVinArrow [24]4 years ago
8 0

Answer:

transmitting telephone signals

Explanation:    

Based on the principle of total internal reflection, fiber optics has revolutionized telecommunication. Fiber optics are made of very thin plastic or drawn out glass. Signals enter this hollow tube at critical angle and reflect internally and transmit ahead. Signals can be transmitted to long distances without any noise and attenuation.

Len [333]4 years ago
7 0
ITS NOT C IT MIGHT BE B
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stiks02 [169]

Answer:

B on both questions

Explanation:

6 0
3 years ago
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Rate at which a chemical substance tends to undergo a chemical reaction
kifflom [539]
Reactivity is the name your looking for I believe.
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3 years ago
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Q2.  0.254 g of KHP (204 g/mol) titrated against 20.0 mL of unknown NaOH (40.0 g/mol) solution to get the end point of phenolpht
Vera_Pavlovna [14]

Answer:

<u>Mass concentration (g/L) </u><u><em>= 2.49g/L.</em></u>

Explanation:

No. of moles = \frac{mass}{molar mass}

= \frac{0.254}{204} = 0.001245 moles

Concentration of KHP (C1) in litres = n/v

= \frac{0.001245}{0.02} = 0.062 mol/L

We know that:

C_{1} V_{1} = C_{2} V_{2}

where c1v1 and c2v2 are the products of concentration and volumes of KHP and NaOH respectively.

Since mole ratio is 1 : 1.

1 mole of NaOH - 40g

0.001245 mole of NaOH = 40 × 0.001245 = 0.0498g

⇒0.0498g of NaOH was used during the titration

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3 0
3 years ago
If 287 mL of a 1.6 M glucose solution is diluted to 412 mL , what is the molarity of the diluted solution
satela [25.4K]

Answer:

The answer to your question is 1.11 M

Explanation:

Data

volume 1 = 287 ml

concentration 1 = 1.6 M

volume 2= 412 ml

concentration 2 = ?

Formula

               Volume 1 x concentration 1 = Volume 2 x concentration 2

Solve for concentration 2

          concentration 2 = (volume 1 x concentration 1) / volume 2

Substitution

          concentration 2 = (287 x 1.6) / 412

Simplification

          concentration 2 = 459.2 / 412

Result

           concentration 2 = 1.11 M  

5 0
4 years ago
A gas occupies a volume of 180 mL at 35oC and 740 mmHg. What is the volume of the gas at STP?
Tasya [4]

Answer:

there you go

Explanation:

6 0
3 years ago
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