An unknown solution shows the following colors with the stated indicators: Methy

Question

An unknown solution shows the following colors with the stated indicators:

Methyl Violet:  Blue    

Thymol Blue:   Yellow    

Bromphenol Blue: Green    

Bromcresol Green:  Yellow (slight green tint)    

Methyl Red:   Red

Each indicator test of the solution narrows the possible range of pH for the solution (i.e. pH<5) Determine the pH value of the unknown (nearest whole pH unit) and briefly explain your reasoning.

Blue

(>1.6)

Yellow
(<3.0)

Blue

(>4.6)

Yellow

(<3.8)

Blue

(>5.4)

Red

(<4.8)

Yellow

(>6.0)

Indicator 0 1 2 3 4 5 6 7 Methyl Violet Yellow
(<0.0)

Blue

(>1.6)

Thymol Blue Red
(<1.2) Yellow
(>2.8) Bromphenol Blue

Yellow
(<3.0)

Blue

(>4.6)

Bromocresol Blue

Yellow

(<3.8)

Blue

(>5.4)

Methyl Red

Red

(<4.8)

Yellow

(>6.0)

Explanation / Answer

indicator color ph range

methyl violet blue >1.6

thymole blue yellow >2.8

bromocresolblue green between 3.8 and 4.6

bromocresol green yellow9slight green) around 4.00

methyl red red <4.8

From all these colors the ph of the solution should be in between 3.8 to 4.5

nerest integer value is 4.0   

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.