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September 22, 2022Why should the burette be rinsed with NaOH before it is filled?
September 22, 2022The reason that distilled water is boiled prior to use in preparing titration solutions is to remove dissolved CO2 which is present in all water. CO2 gas dissolved in water forms small amounts of H2CO3, or carbonic acid. Carbonic acid will alter the pH of the water, making it slightly acidic.
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- Why is it important to wash the inside of the titration flask? It reduces the chance of solution splashing out whilst swirling. During a titration, a chemist rinsed the inside of the conical flask with deionised water. The water used for rinsing remained in the conical flask.
- Can vinegar be corrosive? Vinegar is an acid and as such can be corrosive, even in weak solutions. Distilled white vinegar has a pH around 2.4, making it more acidic than almost everything except stomach and battery acid.
- What happens when you put too much chlorine in a pool? Excess chlorine can alter the pH level of the water in the pool, making it more acidic. The acid levels can cause any of the following symptoms: Irritant dermatitis which is a red skin rash characterized by raised itchy red bumps. Eye irritation and over-dilated blood vessels in the eyes.
- How do you fix a yellow flame on a gas grill? Turn off the gas at the propane tank. Disconnect the gas line from the tank. Open the grill lid. Turn all control valves to high. Wait for about a minute. Turn all control valves to off. Reconnect the gas line to the tank. Slowly turn on the gas at the tank.
- Why a titration flask should not be rinsed? This is because during rinsing some liquid will remain sticking to titration flask , therefore the pipetted volume taken is the titration flask will increase .
- How do you make a traditional oilskin? Mix equal parts of mineral spirits and boiled linseed oil in a bucket. How much you use depends on how much fabric you will be using. Make sure, however, that you are using equal amounts of both liquids. For example: 1 cup (240 milliliters) mineral spirits and 1 cup (240 milliliters) boiled linseed oil.
