Be sure to answer all parts. Which indicators that would be suitable for each of the following titrations:(a) CH3NH2 with HBr thymol blue bromophenol blue methyl orange methyl red chlorophenol blue bromothymol blue cresol red phenolphthalein(b) HNO3 with NaOH thymol blue bromophenol blue methyl orange methyl red chlorophenol blue bromothymol blue cresol red phenolphthalein (c) HNO2 with KOH thymol blue bromophenol blue methyl orange methyl red chlorophenol blue bromothymol blue cresol red phenolphthalein

The answer is blue, white, yellow-white, orange.

Explanation: These are the two basic reasons for different star colors:

Temperature – cooler stars are red, warmer ones are orange through yellow and white. The hottest stars shine with blue light

Age – As a star ages it produces different chemicals which burn at different temperatures. We can use a star’s color to show its relative age

speed is 200 rpm

power is 14614.1 W

Explanation:

given data

discharge Q = 6 m³

head H = 55 mm

running s =  400 rpm

relative density R = 0.790 Kg/m³

efficiency e = 0.7

Air Density = 1.17 Kg/m³

to find out

speed and the expected power

solution

we will apply here 1s power formula that is

power = Q × R × g× H / e    1

put here all value

power = 6 × 790 × 9.8 × 0.055 / 0.7

power = 3653.52 W

and we know discharge is directly proportional to square of diameter

so

Q1/Q2 = D1²/D2²    2

here we know blower design twice the diameter so D2 is 2D

6/Q2 = D²/(2D)²

so Q2 = 24 m³/s

so speed is

D1 × S = D2 × S1

D × 400 = 2D × S1

S1 = 200

speed is 200 rpm

and

power is

P1/P2 = Q1/Q2

3653.52 / P2 = 6 / 24

P2 = 14614.1

so power is 14614.1 W