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How many moles of CuO are needed to react with 4 moles of HCL?
The balanced chemical equation for the reaction between CuO and HCl is: CuO + 2HCl --> CuCl2 + H2O This equation shows that 1 mole of CuO reacts with 2 moles of HCl. Therefore, to react with 4 moles of HCl, you would need 2 moles of CuO.
What precipitate is formed if you add HCl to CuO and then add BaCl2?
HCl and CuO form CuCl2 and H2O, BaCl2 does not react with CuCl2 so it may react with water so the precipitate are of Ba(OH)2 Added: But this is not the case because to dissolve CuO first you'll need a bit more acid to get it completely dissolved. If the solution would become neutral then Cu(OH)2 would precipitate at concentration of [Cu2+] more than 1.6*10-5 (because Ks=1.6*10-19) rather than Ba(OH)2 (Ks=10-10)
How many moles of hcl are needed to react with 4 moles of cuo?
4 mole cuO X 2/1 = 8 mole Hcl
What is the chemical equation for HCl and copper oxide?
HCL and copper oxide = Copper chloride+water
Is hcl a precipitate?
No, HCl (hydrochloric acid) is a clear, colorless liquid at room temperature and is not a precipitate. A precipitate is a solid that forms when two solutions react chemically and forms a solid product that separates out of the solution.
CuO plus HCL-CuCl2 plus H2O?
CuO + 2HCL - CuCl2 + H2O
How many moles of CuO are needed to react with 4 moles of HCL?
The balanced chemical equation for the reaction between CuO and HCl is: CuO + 2HCl --> CuCl2 + H2O This equation shows that 1 mole of CuO reacts with 2 moles of HCl. Therefore, to react with 4 moles of HCl, you would need 2 moles of CuO.
What precipitate is formed if you add HCl to CuO and then add BaCl2?
HCl and CuO form CuCl2 and H2O, BaCl2 does not react with CuCl2 so it may react with water so the precipitate are of Ba(OH)2 Added: But this is not the case because to dissolve CuO first you'll need a bit more acid to get it completely dissolved. If the solution would become neutral then Cu(OH)2 would precipitate at concentration of [Cu2+] more than 1.6*10-5 (because Ks=1.6*10-19) rather than Ba(OH)2 (Ks=10-10)
How many moles of hcl are needed to react with 4 moles of cuo?
4 mole cuO X 2/1 = 8 mole Hcl
What is the chemical equation for HCl and copper oxide?
HCL and copper oxide = Copper chloride+water
Is hcl a precipitate?
No, HCl (hydrochloric acid) is a clear, colorless liquid at room temperature and is not a precipitate. A precipitate is a solid that forms when two solutions react chemically and forms a solid product that separates out of the solution.
Why whie precipitate of BiOCl disappears when HCl is added?
When HCl is added to a white precipitate of BiOCl, it forms a soluble complex ion, [BiCl4]–, due to the formation of BiCl4- species. This makes the BiOCl precipitate dissolve, resulting in the disappearance of the white precipitate.
Why does CuO plus 2 HCl make H2O plus CuCl2?
When copper(II) oxide (CuO) reacts with hydrochloric acid (HCl), the copper(II) ions react with chloride ions to form copper(II) chloride (CuCl2) and water (H2O). This reaction occurs because copper displaces hydrogen from hydrochloric acid, leading to the formation of copper chloride and water.
Another reagent that could be used in place of HCL to precipitate cations of the silver group?
Another reagent that can be used to precipitate cations of the silver group is hydrochloric acid (HCl).
Why should concentrated hcl help clean out a test tube soiled with cu2o?
The HCl will react with the CuO in a double replacement reaction given by the equation: 2HCl + CuO --> CuCl2 + H2O. Copper(II) chloride is water soluble, so it will clean right out.
Which reactant ion gives white precipitate with AgNO3 and light red when treated first with HCL then KSCN?
The reactant ion is likely to be Chloride (Cl-) ions. With AgNO3, Cl- ions form a white precipitate of silver chloride (AgCl). When treated with HCl followed by KSCN, the white precipitate of AgCl dissolves in HCl to form a colorless solution, then reacts with KSCN to form a light red color due to the formation of silver thiocyanate (AgSCN).
What is the balanced equation for copper II oxide and hydrochloric acid?
This equation is 2 HCl + CuO -> CuCl2 + H2O.
