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A 20.0 mL sample of gastric juice was taken from a patient suspected of having hypochloridia (low stomach acid). The sample was taken several hours after a meal so there was no ingested food or drink, and it was assumed no buffers were present. The sample required 3.7 mL of 0.0013 M NaOH to titrate the sample to neutrality. What was the pH of the gastric juice?
Hypochloridia is defined as having a stomach pH greater than 4. Was the patient suffering from hypochloridia?
HCl according to the following chemical equation? MnO2+4(HCl) --> MnCl2 + Cl2 + 2(H2O)
If the sample contains a combined total of 1.90 mol and has a total mass of 60.3g, what are the percentages of CO2 and Ne in the sample by mole?
A 343 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 625 mmHg. Calculate the moles of Ar present.
Which compound is most likely to dissociate and give O2(g) at 25?C?
one heating 5.03 g of hydrate barium chloride, 4.23 g is left behind. what is the name of this hydrate?
If 42.0 g of CO and 27.0 g of H2O are placed in a 5.0 L flask with 132 g of CO2 and 6.0 g of H2 and allowed to reach quilibrium, what will the concentration of CO be when the system finally reaches equilibrium?
The active ingredient in aspirin is acetylsalicylic acid (HC9H7O4) a monoprotic acid with Ka = 3.3 10-4 at 25°C. What is the pH of a solution obtained by dissolving two extra-strength aspirin tablet
If a raindrop weighs 65 mg on average and 5.1 105 raindrops fall on a lawn every minute, what mass (in kg) of rain falls on the lawn in 1.5 h?
a sample of gas mixture from a neon sign contains 0.0856 mol ne and 0.0254 mol kr. what are the mass percentages of ne and kr in the gas mixture?
Calculate the kg/h of wet cake feed needed to produce 1000 kg/h of "dry" ?sh cake product.
How much heat is required to raise the temperature of a 464g of lead from -20.0C to 219C
Trichlorofluoromethane (CCl3F) boils at 23.8C, and its molar heat of vaporization is 24.8 kJ/mol. Calculate the molar entropy of evaporation of CCl3F(l).
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