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1. ### how many grams of Ca (NO3)2 can be produced by reacting excess HNO3 with 7.4g of Ca (OH)2?

Ca (OH)2+2HNO3---> Ca (NO3)2 +2H2O 1 mole + 2moles --- 1mole + 2 moles you need to calculate the molecular weight of 1- Ca (OH)2= 40+2(16+1)=74gr. 2- Ca (NO3)2=40+2{14+(3x16) }= 164gr...

3 Answers · Science & Mathematics · 26/05/2008

2. ### How to determine concentration of [OH-] in saturated Ca (OH)2 from titration?

Ca (OH)2 + 2HCl --> CaCl2 + 2H20 As 0.0601... is used So, 3.9125*10^-4 / 2 = 1.95625*10^-4 mole of Ca (OH)2 is used As there is 2 mole of OH...

2 Answers · Science & Mathematics · 22/07/2011

3. ### Which does not have an octet of electrons?

Ca + - 1 in the outer level still.

1 Answers · Science & Mathematics · 12/06/2011

4. ### Please calculate the [OH-] and [Ca2 ] of the Ca (OH)2 solution...?

Ca (OH)2(aq) 2HCl(aq) =⇒ CaCl2(aq) 2H2O(l... = 0.0020 moles HCl 0.0020 moles HCl x 1 mole Ca (OH)2 / 2moles HCl = 0.0010 moles Ca (OH2 Ca ...

1 Answers · Science & Mathematics · 10/04/2016

5. ### Solubility for Ca (OH)2?

I assume that you got a saturated solution of Ca (OH)2 and then took an aliquot and titrated this ...

2 Answers · Science & Mathematics · 15/04/2009

6. ### How many moles of iodine are in 0.396 mol of Ca (IO3)2?

Ca (IO3)2 is composed of Ca (2+) and 2 IO3(-) for one mole of Ca (IO3)2 there are 2 moles of iodine: 1 mol Ca (IO3...

2 Answers · Science & Mathematics · 12/03/2009

7. ### Calculate ΔH for Ca (s) + 1/2 O2(g) + CO2(g) → CaCO3(s)?

Ca + 1/2O2 ---------> CaO ....ΔH = -635.1 kj ...(1) ...gt; CaO + CO2 ....ΔH = 178.3 kj .....(2) (1) -(2) Ca + 1/2O2 - CaCO3 -----------> CaO - ( CaO + CO2...

2 Answers · Science & Mathematics · 07/10/2012

8. ### - Ca +_H20->_ Ca (OH)+_H2?

Ca +H20-> Ca (OH)2+H2 Ca +2H20-> Ca (OH)2+H2 Oxygen balanced, calcium balanced, and hydrogen balanced.

2 Answers · Science & Mathematics · 15/03/2010

9. ### how does Ca (NO3)2 affect the solubility of Ca (OH)2?

Ca (OH)2 <-> Ca2+ + 2 OH- ----------(1) Ca (NO3)2 -> Ca2 + + 2 NO3- -----------(2) Adding Ca (NO3)2 will increase the Ca2+ ion concentration. In order to maintain...

2 Answers · Science & Mathematics · 02/09/2007

10. ### Calculate the [H3O ] for 0.018 M Ca (OH)2.

Ca (OH)2 in water dissociates into its ions, so Ca (OH)2 -- Ca ^2+(aq) + 2OH- Because we have a 2:1 mole ratio between Ca ...

2 Answers · Science & Mathematics · 30/01/2011