What is the charge on carbonate ion - Physics Forums
网页2009年5月6日 · The chemical formula for a carbonate ion is CO3^2-. 4. What is the structure of a carbonate ion? A carbonate ion has a trigonal planar structure, with the carbon atom at the center and the three oxygen atoms forming a flat triangle around it. The bond angles between the carbon and oxygen atoms are approximately 120 degrees. 5. What are the ...
Polar or Nonpolar: CO3(2-) Carbonate Ion Help - Physics Forums
网页2004年10月30日 · FAQ: Polar or Nonpolar: CO3(2-) Carbonate Ion Help 1. Is CO3(2-) a polar or nonpolar molecule? CO3(2-) is a polar molecule. This is due to the unequal distribution of charge caused by the difference in electronegativity between the carbon and oxygen atoms. 2. What is the shape of CO3(2-) molecule? The shape of CO3(2-) is …
Why is sodium carbonate more thermally stable than aluminium …
网页2013年9月30日 · The main reason for this is due to the differences in the chemical bonding between the two compounds. Sodium carbonate (Na 2 CO 3) has a more ionic bonding, where the sodium cations are attracted to the carbonate anions. On the other hand, aluminium carbonate (Al 2 (CO 3) 3) has a more covalent bonding, where the aluminium …
Acid-Base Titration: Calculating % Purity of Sodium Carbonate
网页2007年9月30日 · How is the % purity of sodium carbonate calculated from the results of an acid-base titration? The % purity of sodium carbonate can be calculated by using the following formula: % Purity = (Amount of acid used in the titration/Amount of sodium carbonate in the sample) x 100%.
Can you explain the composition of carbonate? - Physics Forums
网页2006年1月13日 · The carbonate ion is charged due to it having 2 extra electrons - no amount of double bond moving will remove this charge. The part I think you are missing is -This polyatomic ion has picked up 2 electrons from the breaking of two bonds in which 2 +ve ions were released and the electrons from the bonds were wholly retained on the oxygen’s.
Product and gas from reacting vinegar(C2H4O2) with potash(K2CO3)
网页2007年4月16日 · In solution, most of the Carbonate ions will (excuse the technical term) ‘suck up’ Hydronium ions (H+) from the water to form the Bicarbonate ion. Since the Bicarbonate ion is a weak acid, the equilibrium will lie towards Bicarbonate ion formation. So you have something like this, K2CO3 (s) --H2O--> 2 K+ (aq) + CO3-2 (aq)
Reactions of calcium carbonate - Physics Forums
网页2010年8月5日 · Calcium carbonate can undergo a variety of chemical reactions depending on the conditions. In general, it can react with acids to produce carbon dioxide gas, water, and a calcium salt. It can also react with bases to form calcium hydroxide and carbon dioxide. At high temperatures, calcium carbonate can decompose into calcium oxide and …
Calculating alkalinity and expressing it in as CaCO3 - Physics Forums
网页2010年9月20日 · E) (15.00 mg CO3 / L) x (1 mmole CO3 / 60.0089 g) x (2 meq / 1 mmole) x (100 mg CaCO3 / 2 meq) = 24.996 mg/L as CaCO3, book answer = 25.02. Physics news on Phys.org. Harnessing magnetic relaxation: 'Pac-Man effect' enables precise organization of superparamagnetic beads. Niobium-tin magnet could be key to unlocking potential of …
Calculate Moles: Na2CO3 Solution | Chemistry Problem Help
网页2003年10月21日 · The question is asking me to calculate the molarity of HCl. If I calculated to moles right, I should be able to then calculate the molarity. Na2CO3 + 2HCl ==> 2NaCl + H2O + CO3. Ratio (1:2) So, 0.117924528mol * 2 = 0.235849056mol of HCl reacting with Na2CO3. Knowing. c= n/ V. then, c= 0.235849056mol/ 23.45cm^3.
Net Ionic Equation for Calcium Carbonate Precipitation Reaction
网页2008年10月16日 · 127. 0. Just eant to comfirm that the net ionic equation for the reaction in which calcium carbonate is precipitated when aqueous solutions of lithium carbonate and calcium chloride are mixed is: Ca2+ (aq) + CO32- (aq) => CaCO3 (s) Physics news on Phys.org. Harnessing magnetic relaxation: 'Pac-Man effect' enables precise organization …