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When hcl and nahco3 are mixed together, a chemical reaction takes place in which a gas is one of the products.What is the molar mass of a sample of gas that has a density of 1.81 g/L at 1.00 atm pressure and 23.0°C?
What is the solubility of AgCl when it is in a solution of 0.15 M NaCl? (AgCl has Ksp = 1.8 x 10-10.) Make a reaction table. Include rows for initial concentration, change in concentration, and equilibrium concentration.
If 0.500 g of antacid was added to 50.00 mL of 0.100 M HCL and 5.65 mL of 0.100 M NaOH was required to titrate the un-neutralized HCL, calculate the actual neutralizing capacity of the antacid in mmol H+ per gram.
Consider the dissolution of CaCl2. CaCl2(s) Ca2+(aq) + 2 Cl-(aq) ΔH = -81.5 kJ A 13.2 g sample of CaCl2 is dissolved in 106 g of water, with both substances at 25.0°C.
A sample of gas is cooled from 440 K to 330 K, if the initial volume was 1.6 L, what was the final volume?
It takes 55.0 J to raise the temperature of an 8.80 g piece of unknown metal from 13.0C to 25.0C. What is the specific heat for the metal? Express your answer numerically, in J/g. C
if i have 0.621 mole of potassium chlorate that decomposes by heat, what is the amount of the oxygen in moles?
What is the structure for hexadecanol? What would explain why it is a solid, rather than a liquid?
What volume of a concentrated HCl solution, which is 36.0% by mass and has a density of 1.179 g/cm3, should be used to make 5.1 L of an solution with a pH of 1.5.
A nucleus of mass number 27 contains 14 neutrons. An atomic ion of this element has 10 electrons in it. Write the symbol for this atomic ion
Why was the titration performed by the addition of permanganate solution to oxalate solution and not the other way around? Why was the experiment performed at an elevated temperature?
what is the molarity of an aqueous solution containing 360g of glucose in 2.0L of solution.
a 486 mL sample of water was cooled from 50C to 10C. assuming a specific heat of 4.184 J/K g and a density of 1.00 g/mL, find the amount of heat transferred.
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