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What will the final concentration be if I dilute 250 mL of 0.10 M lithium acetate solution to a volume of 750 mL?
Calculate the number of moles of solute present in each of the following solutions: a)245 mL of 1.50 M HNO3 b) 50.0 mg of an aqueous solution tha tis 1.25 m NaCl c) 75.0 g of an aqueous solution that is 1.50% sucrose by mass
The mass density of the resulting solution was 1040 kg/m^3. Calculate themolarity and molarity of sucrose in the solution.
Calculate the energy requird to transform this steam into an ice cube at -20 degree C. Also, graph this phase change, with energy as a function of temperature
Choose the selection which gives the correct number of and bonds present in one molecule or ion of ozone, O3. Make the central atom in your Lewis structure follow the octet rule if possible.
Gaseous oxygen is held in 2 separate containers at identical temperature and pressure. The volume of container A is 7.92 L and it contains 0.209 mol of the gas. The volume of container B is 2.45 L. How many moles of the gas are in container B
Identifying Food Groups and Calculating Calories, Question: If one slice of chocolate cake contains 35g of carbohydrate, 15g of fat and 5g of protein
Using curved arrows to show the flow of electrons and being careful to balance mass and charge for each step, provide a mechanism for the reaction below that show how both products are formed
how many grams of CaCl2 should be dissolved in 500.ml of water to make a 0.20m solution of CaCl2
The accepted toxic dose of mercury is 300ug/day there is 180ug of mercury per cubic meter of air. ingestion of 20,000L air per day is she at risk for mercury poisoning?
The amount of EDTA used for the titration was 13.49 mL. Calculate the total hardness (mg/L or ppm of calcium carbonate) for this water sample. Give your answer to one decimal place.
a sample of zn metal reacts completely with of an excess of hcl. the hydrogen gas produced is collected over water at
a) How many milliliters of concentrated HCl (36% HCl by mass, d= 1.18g/ml) are required to produce 12.5L of a solution with pH= 2.10. What volume of 6.15M HCl is required to exactly neutralize 1.25L of 0.265M NH3? NH3 + H3O => NH4 + H2O
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