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a 0.5118 gram sample of CaCO3 is dissolved in 6 moles of HCL, and the resulting solution is diluted to 250.0 ml in a volumetric flask. How many moles of Ca2+ are in a 25.00 ml aliquot of the solution.
Based on electronegativity trends in the periodic table, predict which of the following compounds will have the greatest % ionic character in its bonds. a. H2O b. LiI c. CaO d. RbF e. HCl
estimate the enthalpy change for the reaction between 1 mol c2h5oh as liquid ethanol, a fuel made by fermenting corn, and o2 to yield co2 and h2o under standard conditions by using bond enthalpies,
Ozone (O3) and )2 have a kc= 6.32 *10^37 in the reaction below, if a container is filled with a concentration of .0500 M O2 (and no ozone), what will be the concentration of ozone when the system comes to equilibrium
Calculating the concentration of the acetate ion when dissociation of acetic acid occurs in water and over varying pH conditions?
You are given the chemical reaction (unbalanced equation): AsF3 + C2Cl6 AsCl3 + C2Cl2F4, if 1.3618 mol of AsF3 are allowed to react with 1.000 mol of C2Cl6, what would be the theoretical yield of C2Cl2F4, in grams?
What volume (mL) of a concentrated solution of NaOH (6.00 M) must be diluted to 200. mL to make a 0.88 M NaOH solution
Predict whether a precipitation reaction will occur when aqueous solutions of ammonium sulfate and calcium acetate are mixed. Write the net ionic equation.
Give the formula unite that forms from ionic compounds between: 1 Potassium and Nitrogen 2 Aluminum and Phosphorus 3 Aluminum and Phosphorus
Calculate Enthalpy of HNCO given that the enthalpy of the following reaction is -221.4 KJ/mol.
In an oxidation-reduction reaction, it required 25.6 ml of a 0.65 M potassium permanganate solution to reach the equivalence point with 15.0 mL of an iron(II) sulfate solution.
A 70 piece of ice at 0 is added to a sample of water at 6. All of the ice melts and the temperature of the water decreases to 0. How many grams of water were in the sample?
A piece of metal ore weighs 8.25 g. When a student places it into a container of water, the liquid level rises from 21.25 mL to 26.47 mL. What is the density of the ore?
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