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You have 250.0 mL of a 0.56M solution of sodium acetate. How many mL of 0.50M acetic acid should be added to make a buffer of pH 4.40?
If it takes 34.0 mL of 0.0250 M K2Cr2O7 to titrate 10.0 mL of a solution containing Fe2+, what is the molar concentration of Fe2+.
What mass of HCl is contained in 30.0ml of a solution solution which is 37.2 mass% HCl has a density of 1.19g/ml.
To determine the number of molecules present in air using the ideal gas law and Avogadro's number - how many molecules of each type of gas are present in 1.0 L of air at STP?
A chemistry student needs 80.0mL of acetone for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of acetone is 0.790g cm^-3.
Do you think a comparable spill of a water-insoluble liquid that has a density of 1.20g/mL would have been as harmful to waterfowl and aquatic mammals.
Litre of white gas, and density of the gas is 0.710 g/cm 3 . Calculate the mass of the fuel and express your answer in kgs?
Determine How much sodium hydroxide (in grams) is required to form 546 mL of solution with a pH of 10.00?
How many atoms of neon occupy a volume of 14.3 L at STP.
Determine the amount of heat given off when 1.26 x 104 g of NO2 are produced express your answer (in kJ)?
You are the Science Officer on the Starship Enterprise and you come across a new planet. You find that no light with wavelength less than about 650 nm reaches the surface of the planet.
A 15.00 mL sample of unknown concentration of sulfuric acid is precititated with excess lead(II) nitrate and a precipitate of lead(II) sulfate is collected.
How do you calculate the force of water hitting a concrete cylindrical pole. The velocity of the water is 2 ft/s, the depth of the water is 10 ft, and diameter of the pole is 3 ft. So what would be the total force exerted on the pole by the water?
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