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Ulleksa [173]
2 years ago
6

How much sugar can be dissolved of the 0.3 ml of water is heated to 1000C?

Chemistry
1 answer:
vova2212 [387]2 years ago
3 0
1 cup I believe is the right answer sorry if it’s not
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You wish to measure the iron content of the well water on the new property you are about to buy. You prepare a reference standar
torisob [31]

Based on Beer-Lambert's Law,

A = εcl ------(1)

where A = absorbance

ε = molar absorptivity

c = concentration

l = path length

Step 1: Calculate the concentration of the diluted Fe3+ standard

Use:

V1M1 = V2M2

M2 = V1M1/V2 = 10 ml*6.35*10⁻⁴M/55 ml = 1.154*10⁻⁴ M

Step 2 : Calculate the concentration of the sample solution

Based on equation (1) we have:

A(Fe3+) = ε(1.154*10⁻⁴)(1)

A(sample) = ε(C)(4.4)

It is given that the absorbances match under the given path length conditions, i.e.

ε(1.154*10⁻⁴)(1) = ε(C)(4.4)

C = 0.262*10⁻⁴ M

This is the concentration of Fe3+ in 100 ml of well water sample

Step 3: Calculate the concentration of Fe3+ in the original sample

Use V1M1 = V2M2

M1 = V2M2/V1 = 100 ml * 0.262*10⁻⁴ M/35 ml = 7.49*10⁻⁵M

Ans: Concentration of F3+ in the well water sample is 7.49*10⁻⁵M


7 0
3 years ago
2. If volume is increased, the number of<br> collisions per second
Archy [21]

Answer:

decreases

Explanation:

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Why should scietist as questions
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So they have the right answers

Explanation:

I know

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