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Determine how many kgs of Ca are there in a 205-pound man If 1.4 percent of the mass of a human body is calcium(Ca)?
An antacid tablet dissolves in H2O the fizz is due to a reaction between citric acid (H3C6H5O7) and sodium hydrogen carbonate (sodium bicarbonate, NaHCO3) determine how many moles of CO2 can be formed if one tablet has 0.0119 mol Sodium bicarbonate or sodium hydrogen carbonate is dissolved
Compute the number of grams of H 2 SO 4 in 1 gallon of battery acid if the solution is 38.9% sulfuric acid by mass and has a density of 1.33g/mL ?
Assemble the alcohols (have the formula of C4H10) in the order of increasing reactivity with concentrated HCl.
Determine the value of the solubility-product constant if solubility of T3U2 =4.24× 10-20 mol/L.?
Multiple choice questions in free energy change and What is the free energy change in kJ/mole?
Determine the characteristic wavelengths if an electron are accelerated through an electric potential to a kinetic energy of 18kev.
Find the concentration and pH solution - What is the pH of a solution of 0.65 M acid and 0.51 M of its conjugate base if the pKa = 5.30?
These 3 solutions including 2.362 g of Rb2S, 1.635 g of NaClO 4 , and 0.796 g of CuCl 2 , respectively are combined together? now calculate what would be the mass of this precipitae?
What will be the freezing point and boiling point of this aqueous solution if given that Kb(H 2 O) = 0.51 oC/m and Kf = 1.86o C/m.
Estimate the change in entropy if fifty kilo joules of energy are transferred reversibly and isothermally as heat to a large block of Cu at zero degree Celsius and seventy degree Celsius?
Using a solution containing 0.302 grams of an antibiotic has an osmotic pressure of 8.34 mmHg At 23.6°C, 0.500 L. calculate its molecular mass.
compute the partition coefficient for the compound between C 6 H 14 and H 2 O (Kphexane/water).
Determine which monomer will have the higher degree of polymerization (DP) and by how much?
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