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The daily output of stomach acid (gastric juices) is 1000mL to 1400 mL. Prior to a meal, stomach acid HCl typically has a pH of 1.42.
a. The antacid milk of magnesia contains 400mg of Mg(OH)2 per teaspoon. Write the neutralization equation.
b. Calculate the number of milliliters of stomach acid neutralized by 1 tablespoon of milk of magnesia (1 tablespoon = 3 teaspoons).
how many heat energy is required to heat a cup of water (195.0) from room temperature (25.0C) to boiling (100.0C).
How many moles of HCl need to be added to 150 mL of 0.50 M NaZ to have a solution with a pH of 6.50? (Ka of HZ is 2.3e-5). Assume negligible volume of the HCl.
Calculate the amount of energy in kilojoules needed to change 423g of water ice at -10 deg c to steam at 125 deg c . The following constants may be useful:
If a 100.0 g sample of water at 60.0 degreesC is added to a 100.0 g sample of water at 10.0 degrees C, determine the final temperature of the water.
Consider the following gas-phase equalibrium reaction: N2(g)+O2(g) 2NO(g); Kc=4.10x10^-4 at 2000 degrees C. If 6.0 mol of NO is introduced into a 1.0L container at 2000 degrees C, what is the concentration og NO when equalibrium is reached?
Carbon-carbon single bonds in organic molecules have energies about 350 kj/mol. What is the corresponding wavelength.
1.00 x 10-2 M Mg(NO3)2 and 250 ml of 1.00 x 10-1 M NaF.Calculate the concentrations of Mg2+ and F- at equilibrium with solid MgF2 (Ksp of MgF2 = 6.4 x 10-9).
Write as a superposition of 3 eigenstates, indicating the numerical value of each coefficient. Using the coefficients, demonstrate that is normalized.
If 112 grams of calcium oxide were mixed with 224 grams of ammonium chloride, what maximum mass of ammonia could be produced?
25.0 cm3 of a saturated solution of Ca(OH)2 required 21.0 cm3 of 0.0500 mol dm-3 HCl for complete neutralisation. Calculate the [OH-(aq)] and the [Ca2+(aq)] in the saturated solution.
Draw the major organic product from reaction of 1-butyne with NaNH2, then CH3Br. If no reaction occurs, write ethane, CH3CH3.
If 3.0 ml of distilled water is added to 2.0 ml of 0.35 M CoCl2 solution , what is the concentration of the resulting solutions?
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