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Lady_Fox [76]
3 years ago
15

The effectiveness of a chemical sanitizer can be limited by

Chemistry
1 answer:
Serjik [45]3 years ago
7 0

Chemical sanitizer effectiveness, decreases with increase in pH . And most soap and detergent are alkaline in nature, that limits its effectiveness. So they should be rinsed off completely for proper effectiveness of santizer. So improper rinsing limits the effectiveness of a sanitizer.

So , the answer is improper rinsing after that still a detergent residue remains limits the effectiveness of sanitizer.

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If a solution has a pH = 3, and another solution has a pH = 5, in terms of acidic strength, how many times weaker is the second
scoray [572]
I think they might have the answer online
3 0
3 years ago
Read 2 more answers
What is the Moleular geometry of Xe0F4
Rudiy27

Answer:

Central atom: Xe

Total VSEP: 7

1 x double bond − 1 pair

Revised Total: 6

Geometry: Square pyramidal (based on octahedral)Explanation:

3 0
3 years ago
If a sample contains 70.0 % of the R enantiomer and 30.0 % of the S enantiomer, what is the enantiomeric excess of the mixture?
NeTakaya

Answer:

the enantiomeric excess of the mixture is 40%

Explanation:

The computation of the enantiomeric excess of the mixture is shown below:

As we know that

= |\frac{R - S}{R + S} |\times 100\\\\= |\frac{70 - 30}{70 + 30}| \times 100\\\\= 40\%

Hence, the enantiomeric excess of the mixture is 40%

3 0
3 years ago
An aqueous solution containing 17.5 g of an unknown molecular compound in 100.g water was found to have a freezing point of-1.8°
Zigmanuir [339]

Answer:

The answer to your question is 178.6 g

Explanation:

Data

ΔT = 1.8 °C

mass = 17.5 g

mass of water = 100 g

Kc = 1.86

Process

1.- Calculate the molality using the following formula

    ΔTc = mKc

solve for m

    m = ΔTc/Kc

substitution

     m = 1.8/1.86

result

     m = 0.968

2.- Calculate the number of moles

    m = # of moles/kg of solvent

kg of solvent = 0.1 kg

     # of moles = m x kg of solvent

     # of moles = 0.968 x 0.1

     # of moles = 0.0968

3.- Calculate the molar mass

        x g molar mass --------------------- 1 mol

       17.5 g                  --------------------- 0.0968 moles

       x = (1 x 17.5)/0.0968

      x = 178.6 g

             

4 0
3 years ago
Which pair of elements has atoms with the same number of valence electrons ?
RoseWind [281]

Answer:silicon (Si) and geranium (Ge)

Explanation:

3 0
3 years ago
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