User Todd Minehardt

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Why do toothbrushes have to be dried?

answered Jul 24, 2015 at 18:07

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How to interpret intervals on a FT-IR spectrogram of soil samples?

answered Nov 17, 2016 at 17:10

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Differentiating Al2O3 from SiO2 using chemical methods

answered Jun 13, 2017 at 19:53

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How can I calculate the standard reaction enthalpy if I lack one formation enthalpy?

answered Jun 19, 2017 at 20:39

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What term should I use when I am quantifying the amount of matter, mass or weight?

answered Jun 22, 2017 at 14:27

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Does adding lemon juice to water chemically alter its nutrients and thereby negating any of its health benefits?

answered Sep 10, 2015 at 13:24

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Liquifying metal and toxic fume exposure

answered Feb 6, 2016 at 18:05

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Molecular differences in the HB graphite hardness scale

answered Mar 4, 2016 at 23:57

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Substances that pass visible light but absorb microwaves

answered Jun 9, 2016 at 21:22

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How to determine force constant of C-C bond in ethanol?

answered Sep 28, 2015 at 13:39

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Is heating dilute HCl dangerous?

answered Sep 8, 2015 at 19:53

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What is a food-safe level of exposure of plastic containers to heat?

answered Aug 26, 2015 at 13:42

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Can rocket candy explode during the preparation?

answered Aug 26, 2015 at 19:35

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What is the difference between SBA-15 and MCM-41?

answered Feb 6, 2017 at 18:34

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Normal phase vs reverse phase HPLC

answered Sep 24, 2017 at 19:27

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Concentration of mercury in body

answered Nov 18, 2017 at 20:50

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Hydrophobic sand in water

answered Jan 5, 2016 at 18:36

4 votes

Can ingredients in Tiger Balm cause any harmful effects on PVC figures?

answered Jul 27, 2015 at 13:19

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N2O production vs air distillation

answered Jul 28, 2015 at 19:32

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Calculating enthalpy per gram mole of oxygen bond in haemoglobin

answered Jul 21, 2015 at 11:58

4 votes

Does caesium or francium have a lower ionization energy?

answered Jul 8, 2015 at 18:18

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Is turning graphite carbon into diamond industrially doable?

answered Jul 10, 2015 at 16:52

4 votes

Relation between moles, molar mass and mass

answered Jun 22, 2015 at 17:29

4 votes

Determining equilibrium concentrations from initial conditions and equilibrium constant

answered Jun 22, 2015 at 19:38

4 votes

Aluminium and water safety

answered Jun 23, 2015 at 1:56

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Is "density per unit volume" something?

answered Sep 30, 2019 at 17:53

4 votes

Sound of ringing gels

answered Jan 4, 2021 at 0:35

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What is the origin of the word salt as used in chemistry?

answered Dec 18, 2021 at 17:03

3 votes

How would you test for ppm of lead in a powder?

answered Aug 4, 2021 at 0:50

3 votes

Help with chemical bond associated with 1500cm-1 and 1600cm-1

answered Sep 15, 2022 at 21:16

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171 Answers

Why do toothbrushes have to be dried?

How to interpret intervals on a FT-IR spectrogram of soil samples?

Differentiating Al2O3 from SiO2 using chemical methods

How can I calculate the standard reaction enthalpy if I lack one formation enthalpy?

What term should I use when I am quantifying the amount of matter, mass or weight?

Does adding lemon juice to water chemically alter its nutrients and thereby negating any of its health benefits?

Liquifying metal and toxic fume exposure

Molecular differences in the HB graphite hardness scale

Substances that pass visible light but absorb microwaves

How to determine force constant of C-C bond in ethanol?

Is heating dilute HCl dangerous?

What is a food-safe level of exposure of plastic containers to heat?

Can rocket candy explode during the preparation?

What is the difference between SBA-15 and MCM-41?

Normal phase vs reverse phase HPLC

Concentration of mercury in body

Hydrophobic sand in water

Can ingredients in Tiger Balm cause any harmful effects on PVC figures?

N2O production vs air distillation

Calculating enthalpy per gram mole of oxygen bond in haemoglobin

Does caesium or francium have a lower ionization energy?

Is turning graphite carbon into diamond industrially doable?

Relation between moles, molar mass and mass

Determining equilibrium concentrations from initial conditions and equilibrium constant

Aluminium and water safety

Is "density per unit volume" something?

Sound of ringing gels

What is the origin of the word salt as used in chemistry?

How would you test for ppm of lead in a powder?

Help with chemical bond associated with 1500cm-1 and 1600cm-1