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A 0.2861 gram sample of an unknown acid (HX) needed 32.63 mL of0.1045 M NaOH for neutralization to a phenolphthalein endpoint. Explain what is the molar mass of the acid? If this unknown acid had the formula H2X, could this experiment be used to find out its molar mass? Define why of why not.
how many grams of asprin were lost in the washing process you used to purify your product assuming you used 50ml if
If 12.5 g of magnesium nitride is treated with water, what volume of ammonia gas would be collected at 22°C and 753 mm Hg?
Nitrogen gas may react with hydrogen gas to form hydrazine gas, N2H4, according to the reaction N2 + 2 H2 ---> N2H4. 10 L of N and 25 L H react to completion (the limiting reagent is converted entirely to hydrazine).
What is the specific heat for the metal? Express your answer with the appropriate units. B) The molar heat capacity of silver is 25.35 J/mol
Using the values from Appendix C, calculate the value of change H degrees for each of the following reactions
Gastric juice is made up of substances secreted from parietal cells, chief cells, and mucous-secreting cells. The cells secrete HCl, proteolytic enzyme zymogens, mucin, and intrinsic factor
how many millgrams of ascorbic acid (molar mass = 176.1g/mol) are in the sample, calculate the number of milligrams of ascorbic acid per 100g of citrus juice.
The membrane has pores equivalent in size to a spherical molecule with a molecular weight (Mm) of 120,000 daltons. The protein solution consists of albumin (40 g/L at Mm = 69,000 daltons), globulins (70 g/L at MW = 150,000 daltons), and fibrinogen..
What types differences in the H-NMR spectra of starting material and product do you expect to see camphor, borneol
Are they right if not then what is their outer shell configuration - What is the outer configuration of d subshell
Chromium metal can be produced from the high temperature reaction of Cr2O3 (chromium(III) oxide) with silicone or aluminum by the following reaction: Cr2O3+ 2Al ---------> 2Cr+ Al2O3
Calculate the volume of oxygen,measured at STP, produced by the decompistion of 2.87 g of potassium chlorate.
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