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In the preparation of aspirin water is added to the reaction flask Why?
Wiki User
∙ 12y ago
The formation of aspirin will proceed faster if acetic anhydride is used in place of acetic acid. However, acetic anhydride will hydrolyze in the presence of water to form acetic acid, slowing down the reaction.
Wiki User
∙ 12y ago
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A flask fitted with a stopper that is used in the preparation of solution?
volumetric flask
What would likely happen if you were to touch the flask in which an exothermic reaction were occurring?
The flask might feel cool to the touch as the reactants absorb heat conducted through the flask from your body. (This assumes that the reaction is happening at temperatures below your body temperature.)
Is heating a flask on a hot plate an example of activation energy beginning to react?
No, heating a flask on a hot plate is not an example of activation energy beginning to react. Activation energy refers to the minimum amount of energy required for a chemical reaction to occur, and it is not related to heating a flask. Heating a flask on a hot plate simply refers to the process of applying heat to the flask, which can facilitate a reaction by increasing the temperature and providing the necessary energy for the reaction to proceed.
Why receiving flask supposed to be kept on ice during preparation of cyclohexene?
Cyclohexene is a volatile liquid Thus, the flask is cooled to reduce the degree of evaporation to a minimum
As the acid in beaker A is added to the base in flask B the number of OH ions in flask B?
Decreases
Why is sodium hydroxide added into the conical flask containing a analgesic or aspirin?
to decrease ph
Why is an excess amount of Na OH added to the conical flask containing aspirin?
to decrease ph
Preparation of phosphate buffer pH 3?
Volumetric flask= 200 ml (100 ml K2HPO4 0.1M)+ (44.6 ml HCl 0.1M) added in flask then added deionized or distilled water until mark.
A flask fitted with a stopper that is used in the preparation of solution?
volumetric flask
What would likely happen if you were to touch the flask in which an exothermic reaction were occurring?
The flask might feel cool to the touch as the reactants absorb heat conducted through the flask from your body. (This assumes that the reaction is happening at temperatures below your body temperature.)
Is heating a flask on a hot plate an example of activation energy beginning to react?
No, heating a flask on a hot plate is not an example of activation energy beginning to react. Activation energy refers to the minimum amount of energy required for a chemical reaction to occur, and it is not related to heating a flask. Heating a flask on a hot plate simply refers to the process of applying heat to the flask, which can facilitate a reaction by increasing the temperature and providing the necessary energy for the reaction to proceed.
Why receiving flask supposed to be kept on ice during preparation of cyclohexene?
Cyclohexene is a volatile liquid Thus, the flask is cooled to reduce the degree of evaporation to a minimum
As the acid in beaker A is added to the base in flask B the number of OH ions in flask B?
Decreases
What type of chemical reaction is a flaming flask?
This is an example of hydrogen burning.
How would you capture hydrogen from a chemical reaction of an acid and a metal?
The hydrogen in such a reaction can effectively be collected using an apparatus called the gas jar. THis can be done by fitting the reaction flask with cork and a delivery tube running from the reaction flask to the gas jar. As the reaction proceed, the hydrogen evolved will be collected in the gas jar.
A flask is weighed and has a mass of 50.0 grams Then 2.0 grams of sodium metal is added to the flask Chlorine gas is pumped into the flask This allows the sodium metal to react completely with c?
5.0 grams.
Why Erlenmeyer flask does not have to be dry and why water may be added?
- Depending on the specifications for the experiment the Erlenmeyer flask may be dry or not - Water is added only if the recipe need water
