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NaOH is added to remove excess iodoform to neutralize any remaining iodine or iodoform in the reaction mixture. This process helps to ensure that the final product is free from unwanted contaminants, which can affect purity and yield. Additionally, NaOH promotes the conversion of unreacted iodoform into soluble iodide ions, facilitating its removal from the mixture. Thus, adding NaOH enhances the overall efficiency and quality of the synthesis.
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What happen when zinc granules are add to NaOH?
In this case sodium zincate is formed.
What happens to the pH of distilled water when you add NaOH?
HCl : makes it acidic. it decreases the pH NaOH : makes it alkaline. it increases the pH
What happens when you add NaOH solution to a solution ZnCl2?
When you add NaOH solution to a ZnCl2 solution, a precipitation reaction occurs. The hydroxide ions (OH⁻) from the NaOH react with zinc ions (Zn²⁺) to form zinc hydroxide (Zn(OH)₂), which is an insoluble white precipitate. This reaction can be represented by the equation: ZnCl₂ + 2 NaOH → Zn(OH)₂ (s) + 2 NaCl. Over time, the zinc hydroxide may further dehydrate to form zinc oxide.
How will prepare 200ml of 10 percent NaOH Solution?
Dissolve 0.4 g of NaOH in 100 ml of water. Try it out. Actually it is not suitable to prepare NaOH solutions in standard flasks.It should be made in beakers & must be standardised..This is done to find the correct normality...
How many ml of 1m naoh do you need to add to a 250ml flask to make a 0.12 m naoh solution?
1/.12 = 8.3333333333 This is the dilution factor you need to achieve. 250ml / 8.333333 = 30ml. This is a very important concept for chemistry so it may be important to try this method. The logical way works for me.
What happens when you add NAOH to Hydrogen?
Nothing.
How do you neutralise on acid?
Add a base, such as NaOH, NH3, or LiOH
What amount of solid Naoh must be added to 750g of an aqueous solution to make 2.5 percent naoh solution by mass?
You would need to add 18.75g of solid NaOH to the 750g of aqueous solution to obtain a 2.5% NaOH solution by mass.
What happen when zinc granules are add to NaOH?
In this case sodium zincate is formed.
How is a solution of NaOH prepared dissolving 20g of NaOH in 500ml of distiled water solved?
To prepare a 20 g/500 mL solution of NaOH, you would gradually add 20 g of NaOH to 500 mL of distilled water while stirring until fully dissolved. It is important to add the solid to the liquid to prevent splattering. Remember to always use caution and appropriate personal protective equipment when handling NaOH due to its caustic nature.
As edta dissolves in water the h will increase to achieve a pH 8.0 would you need to add hcl or naoh?
To achieve a pH of 8.0, you would need to add NaOH (sodium hydroxide) to increase the pH. NaOH is a strong base that will react with water to produce hydroxide ions, which will raise the pH. Adding HCl (hydrochloric acid) would lower the pH as it is a strong acid.
How do you prepare 1 N to 0.1N NaOH solution?
To prepare 0.1N NaOH solution from a 1N NaOH solution, you can dilute 1 part of the 1N solution with 9 parts of water (since 1/10 = 0.1). Measure 1 volume of the 1N NaOH solution and add 9 volumes of water to it, then mix well to get your 0.1N NaOH solution.
How do you prepare 10 N of NAOH?
To prepare a 10 N solution of NaOH, you would dissolve 400 g of NaOH pellets in enough distilled water to make 1 liter of solution. Remember to add the NaOH to the water slowly and carefully due to the exothermic nature of the reaction. Finally, stir the solution until all of the NaOH has fully dissolved.
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What happens to the pH of distilled water when you add NaOH?
HCl : makes it acidic. it decreases the pH NaOH : makes it alkaline. it increases the pH
How do you prepare 10 ml of 1M naoh?
To prepare 10 mL of 1M NaOH solution, you would need to dissolve 0.4 grams of NaOH pellets in 10 mL of distilled water. Make sure to wear appropriate personal protective equipment such as gloves and goggles when handling NaOH as it is a corrosive substance.
