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Personally, I use this method to determine if an ionic solid is acidic/basic/neutral.
Let's take a look at the ions in this compound: Ca2+ and CO32- .
Ca2+ is found in Ca(OH)2 , which is a very strong base. CO32- is found in H2CO3 , which is a weak acid. So, one ion comes from a strong base, while another comes from a weak acid. Overall, this compound must be basic.
There are also other methods. You can add an acid to the solid. There is a reaction, so the solid must be basic. If you add a base, it doesn't react.
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∙ 13y ago
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What is purpose of adding HCl to the CaCO3 -H2O mixture prior to dilute?
It is the only way of dissolving CaCO3. HCl + CaCO3 --> Ca2+ + H2O + CO2 In neutral water CaCO3 is insoluble.
Which substance is used in the neutralization of acidic soil?
For example calcium carbonate (CaCO3).
What is the effect of CaCO3 on acids' pH level?
CaCO3 is a base. It will neutralize acid and hence the pH of acid increases (tends to reach neutral pH)
What is the potentiality of chicken eggshells as neutralizer to acidic acid?
I think you mean acetic acid. Eggshells contain calcium carbonate, CaCO3, which is a base.
Why does soda dissolve chalk?
Soda is acidic as it contains H2CO3 due to the dissolved CO2 within the soda. Chalk on the other hand is a basically CaCO3 which is a base CaCO3 + H2CO3 ---> CaCO3 + H20 + CO2 The reaction will continue until here is no more H2CO3 left i/e when the soda goes flat. If this occurs before or the carbonate (CO3) is reduce to CO2 then there will be a solid left in the soda in the form of CaCO3
What is purpose of adding HCl to the CaCO3 -H2O mixture prior to dilute?
It is the only way of dissolving CaCO3. HCl + CaCO3 --> Ca2+ + H2O + CO2 In neutral water CaCO3 is insoluble.
Which substance is used in the neutralization of acidic soil?
For example calcium carbonate (CaCO3).
What is the effect of CaCO3 on acids' pH level?
CaCO3 is a base. It will neutralize acid and hence the pH of acid increases (tends to reach neutral pH)
What is the potentiality of chicken eggshells as neutralizer to acidic acid?
I think you mean acetic acid. Eggshells contain calcium carbonate, CaCO3, which is a base.
Why there are large caves and tunnels where the main rock is limestone?
Limestone, CaCO3, is reactive with naturally acidic rainwater which helps dissolve it.
What are the chemical reactions that take place in limestone caves?
CaCO3> Ca^2+ +CO3^2- Basic CaCOO3+H^+ > Ca2+ +HCO3^- Ph dissolution CaCO3+ 2H^+ > Ca2+ + H2O + CO2 acidic Ph dissolution CaCO3+ H2O +CO2 > Ca^2+ + 2HCO3^- CO2 reacts with the atmosphere
Why does soda dissolve chalk?
Soda is acidic as it contains H2CO3 due to the dissolved CO2 within the soda. Chalk on the other hand is a basically CaCO3 which is a base CaCO3 + H2CO3 ---> CaCO3 + H20 + CO2 The reaction will continue until here is no more H2CO3 left i/e when the soda goes flat. If this occurs before or the carbonate (CO3) is reduce to CO2 then there will be a solid left in the soda in the form of CaCO3
Are lime stones neutral?
Limestones are mostly made up of Calcite or Calcium Carbonate (CaCO3). Calcium Carbonate is basic in nature.
What is the grams of substance in 4.5 moles CaCO3?
Molar mass of CaCO3 = 66.1221g CaCO3/mole CaCO3. This means that 1 mole CaCO3 = 66.1221g CaCO3. To find the mass of 4.5 mole CaCO3, complete the following calculation: 4.5g CaCO3 X 1mol CaCO3/66.1221g CaCO3 = 0.068 mole CaCO3.
Why do farmers put lime on their fields if the acid is to strong?
Calcium carbonate, CaCO3 is the ingredient of lime. CaCO3 is a base. If there is too much acid in the fields, by adding a base it can be neutralised - that way, the ground won't be too acidic or too basic and crops can grow in their ideal conditions.
What happens when H2O is added to CaCO3?
Nothing, because calcium carbonate is insoluble in pure water but slightly acidic water as tap water may dissolve it slowly.
Formula of limestone?
It is CaCO3.....it is the same as marbleFormula: CaCO3
