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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.
Suppose that 25.0g of gold is initially at 27.0 Celsius. What is the final temperature of gold upon absorbing 2.35kJ of heat?
Commensurate with the quantities of chemicals involved. Choose a distillation flask, which will be approximately half filled by the quantity of liquid you have to distil
which of the following transition metal complexes is diamagnetic?
Consider a situation in which 161g of P4 are exposed to 176g of O2. A) What is the maximum amount of P2O5 that can theoretically be made from 161g of P4 and excess oxygen
At 450 K the equilibrium concentrations for the following reaction was measured and used to calculate the kc value of 0.0431. What is the value of Kp for the Reverse reaction under the same conditions
If the density of water is 1.00g/mL, what is the weight in pounds of gallon of water? you may assume that mass and weight are equivalent at the earth's surface.
addition of excess NH3 to this acidic solution produces only a blue solution. Which group III ions are present, which are absent and which are in doubt? How would you remove all doubt?
The rate constant of a reaction increases by a factor of 2 when the temperature is increased by 10C above room temperature (25C). Calculate the activation energy for this reaction.
Ozone (O3) is produced in the laboratory from oxygen (O2) by means of an electric discharge. Once generated, ozone gradually decomposes into oxygen by first-order kinetics. The following data were obtained from a sample of freshly prepared ozone
Predict the products of the following acid-base reactions, and predict whether the equilibrium lies to the left or to the right of the equation.
for each of the following slightly soluble salts write the equilibrium equation dor dissociation and the solubility product expression: a)Ag2S. b)Al(OH)3. c)BaF2.
why is it best to cool the crucible and lid (and sample) in a desiccator rather than on the laboratory bench
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