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NaOH solution is used to determine the amount of Mg(OH)2 in a sample of milk of magnesia, (molairty of NaOH is 1.172M). A 10.0 gram sample of milk of magnesia is required with 8.00 mL of 6.00 M HCl. The excess HCl required 17.56 mL of NaOH. What is the % Mg(OH)2 in milk of magnesia? The person who answered my question got around 13 percent i believe. But I'm not sure if it is right because i believe he or she may have forgot to convert the 17.56 ml to L.
Calculate the equilibrium constant at 0c and at 50c(assuming enthalpies of formation are independent of temp)
he following compound has two stereoisomers. One has a dipole of 0 D, and the other has a dipole moment of 2.95 D. Draw the structure of the stereoisomer with dipole moment of 0 D
canned tuna was analyzed by the Kjeldahl method; 22.66ml of .1224M HCl were required to titrate the liberated ammonia. Calculate the percentage of nitrogen in the sample.
Approximate the percent increse in waste size that occurs when a 155lb person gains 40.0 lbs of fat. Assume that the volume of the person can be modeled by a cylinder that is 4.0 feet tall.
Decaborane, B10H14, was used as a fuel for rockets in the 1950's . It ignites spontaneously with O2 according to the following reaction: B10H14 + 11O2 ? 5B2O3 + 7H2O
The vapor pressure of pure methanol, CH3OH, at 30 °C is 160. torr. How many grams of the nonvolatile solute glycerol, C3H5(OH)3, must be added to 131. g of methanol to obtain a solution with a vapor pressure of 133. torr?
Phosphorus pentachloride is used in the industrial preparation of organic phosphorus compounds. Equation 1 shows its preparation from PCl3 and Cl2.
The molarity of C2O42- in a saturated solution of CdC2O4 was determined to be 0.000122 M. Calculate the solubility product constant (Ksp) for CdC2O4.
write a complete ionic equation and if there is a phase change you need to then write a net ionic equation and list the spectator ions copper (ii) sulfate plus silver nitrate equals copper (ii) nitrate and silver sulfate
The organic chemical butane (C4H10) will undergo reversible rearrangement to form isobutene (C4H10) with Kc = 2.5 under certain reaction conditions
What volume of 5.00 x 103 M HNO3 is needed to titrate 100.00 mL of 5.00 x 103 M Ca(OH)2 to the equivalence point
Consider ATR sampling using a trapezoidal ZnSe crystal. In the mid-infrared region, refractive indices for ZnSe and water are approximately 2.4 and 1.3, respectively. What is the penetration depth (?m) for IR radiation of 1600 cm-1 if it strikes t..
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