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Sr(OH)2, is considerably more soluble in hot than in cold water. At 25 °C, 1.01 g of this compound dissolves in 0.100 L of water, but 27.9 g dissolves at 100.0 °C. Calculate Ksp at the temperature of 25°C
what is the remaining Ag+ ion concentration and is precipitation complete? The solubility product constant of AgBr is 5.0 × 10-13.
CaCO 3 ( calcium carbonate ) is insoluble in water. would this ionic compound conduct electricity. why/why not.
Sucrose, C12H22O11, is a nonelectrolyte; hypochlorous acid, HClO, is a weak electrolyte; and ammonium chloride, NH4Cl, is a strong electrolyte.
Sodium has a density of 0.968g/cm3 and crystallizes with the body-centered cubic unit cell. Calculate the radius of a sodium atom.
What mass of Fe would be contained in a 80.0 g sample of magnetite ore that is 76.0% Fe3O4. Assume no other form of Fe is present
Consider the combustion reaction: CH4 (g) + 2O2 (g) = CO2 (g) + 2H2O (l) Is this an exothermic reaction? If 100g of natural gas (CH4) is burned, calculate the heat exchange (balance the equation)
N2 + 3H2 --> 2NH3 what volume of hydrogen is necessary to react with five liters of nitrogen to produce ammonia?
What is the PH of the buffer that results when 12.0 g of NaH2PO4 and 8.00 g of Na2HPO4 are diluted with water to a volume of .50 L? (Ka of H2PO4=6.2*10^-8, the molar masses are 120.0 g/mol and 142. mol respectively.
A water sample is suspected to be contaminated by iron (III) ions. How could you determine if the sample is really contaminated
You titrate a 425 mL sample of an acide mine drainage with a 0.32 M solution of NaOH. It takes 22.4 mL of the sodium hydroxide to reach the equivalance point
Determine the molecular formula for the unknown if the molecular mass is 60.0 amu and the empirical formula is CH2O.
If the formation of a Grignard synthesis does not begin spontaneously when Mg metal and a solution of an alkyl halide in either are mixed, one sometimes adds a small amount of iodine to the flask. What substance is formed from the reaction of iodi..
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