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Why is it wrong to leave a bottle of anhydrous sodium sulfate or calcium chloride open?
Wiki User
∙ 10y ago
The hydrated forms of these compounds are lower energy thermodynamically than the anhydrous forms. It takes heat energy to drive the water out of these salts to make them anhydrous. If left in the open, the anhydrous forms will take up water from the atmosphere and re-hydrate themselves. This process releases heat energy, so it "runs downhill" energy-wise.
Wiki User
∙ 10y ago
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2 Why is it wrong to leave a bottle of anhydrous sodium sulphate or calcium chloride open?
Because they are highly hygroscopic compounds and absorb moisture from air.
What is a sulfate free and sodium chloride free shampoo?
Organix makes two types that are both sulfate free and sodium chloride free. They're both ever straight, one is a brown bottle and one is a pink bottle, but they both say sodium chloride and sodium free on the bottom above the Organix label!
Why silver chloride storage in dark colour bottle?
Silver chloride is light sensitive. Light photons break the salt down into silver metal and chlorine gas. Using a dark bottle protects the salt from the light that would degrade the sample.
How to clean calcium build up on faucet?
CLR--comes in a gray plastic bottle you can purchase at grocery store.
How can you make a 0.01M potassium chloride standard solution?
-Weight exactly 0,7455 g of ultrapure potassium chloride (KCl) in a weighing bottle, on an analytical balance - Transfer quantitatively the content in a 1 L volumetric flask, grade A - Add approx. o,75 L water (distilled or deionized) - Stir to dissolve all the chloride - Put the volumetric flask in a thermostat at 20 0C - Wait 30 min - Add water (distilled or deionized) to the mark - Stir vigorously - Transfer the solution in a sealed bottle - Add an adequate label on the bottle (date, operator, material, concentration, etc.)
2 Why is it wrong to leave a bottle of anhydrous sodium sulphate or calcium chloride open?
Because they are highly hygroscopic compounds and absorb moisture from air.
What is a sulfate free and sodium chloride free shampoo?
Organix makes two types that are both sulfate free and sodium chloride free. They're both ever straight, one is a brown bottle and one is a pink bottle, but they both say sodium chloride and sodium free on the bottom above the Organix label!
Can 99.5 percent anhydrous glycerin be used to relieve dry eyes?
Mine says avoid contact with eyes on the bottle. :(
If a bottle of concentrated HCL if placed next to a bottle of concentrated NH4OH what is the white residue that eventually coats each bottle?
NH4Cl - Ammonium Chloride
What is the plastic water bottle label made from?
PVC (Polyvinyl Chloride)
How do you dispose of stannous chloride?
You have to put it in a glass bottle and dispose of it as hazardous waste.
Why is it unwise to put left calcium carbonate back in the bottle?
because once it has left the bottle it can easily become contaminated.
Why is it unwise to put AR calcium carbonate back in the bottle after an experiment?
The purpose is to avoid any contamination of the reagent in the bottle.
Does potassium and chloride combined make a covalent compound?
No. Potassium chloride is an ionic compound. (By the way, the way the question is worded implies that one could have a bottle full of "chloride," which is at least misleading.)
Why silver chloride storage in dark colour bottle?
Silver chloride is light sensitive. Light photons break the salt down into silver metal and chlorine gas. Using a dark bottle protects the salt from the light that would degrade the sample.
What year was bottled water introduced?
The first PVC (polyvinyl chloride) bottle was launched in 1969
How much sodium is in a 700g bottle of salt?
By mass, sodium chloride is 39.3% sodium, so a 700g bottle of salt would contain about 275 g of sodium.
