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Assume a solution of malonic acid was standardized by titration with 0.100 M NaOH solution. If 20.76mL of the NaOH solution were needed to neutralize completely 13.15 mL of malonic acid soulution, explain what is the molarity of the malonic acid solution?
Calculate the partial pressure of each gas in the container. Express the pressure values numerically in atmospheres, separated by commas.
An electric power station burns 5.0 ´ 105 tons [1 ton = 2000 lbs] of coal annually. Assuming that the coal is 100% carbon, calculate the volume of CO2 emitted at STP by this power plant annually. [1 lb = 453.6 g].
How do you find the mass of a stable isotope where the percentage is given as well as the average atomic weight of a certain element
An impure sample of sodium carbonate, Na2CO3, is titrated with 0.150 M HCl according to the reaction below. 2HCl(aq) + Na2CO3(aq) yields CO2(g) + H2O(l) + 2NaCl(aq)
Consider the reaction that will take place between (S) -2-bromobutane and sodium azide in DMF. A) What is the product of this reaction (give proper stereochemistry of the product formed)
How many grams of oxygen are needed to react completely with 1290 grams of pentanone (C5H10O)?
Compute the osmotic pressure in torr of a solution containing 18.75 mg of hemoglobin in 15.0 mL of solution at 25.0oC. Explain the molar mass of hemoglobin is 6.5 x 104 g/mol.
You decide 20.1 g of KCl in 1.00 kg of water. The volume of the resulting mixture is virtually identical to the original volume of the 1.00 kg of water.
What is the total hardness in mg/l as CaCO3. what is the total alkalinity in mg/l as CaCO3. what is the phenolphthalien alkalinity in mg/l as CaCO3. Calculate the total dissolved solids in mg/l. what is the ionic strength of water
gaseous germane reacts according to the balanced equation. if a total of 5240 kj of heat is produced in the reaction as
You are given an impure solid that contains 70% of the desired product. After extracting 15g of the material, you recover 6g of the pure compound. What is the percent recovery
a 2.50-l vessel contained 0.0153 mol of phosphorus trichloride 0.0123 mol of phosphorus pentachloride and 0.0831 mol of
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