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You want to make sure you have plenty of anion in your working solution so you add five spatula tips full of salt to a large test tube and then make your working solution with only 5mL of deionized water. Why is this not a good idea?
A helium balloon is filled to a volume of 2.5 L at atmospheric pressure. If the balloon is placed inside a sealed container and the pressure is reduced to 455 torr.
When M2S3(s) is heated in air, it is converted to MO2(s). A 3.700-g sample of M2S3(s) shows a decrease in mass of 0.207 g when it is heated in air.
sample of sodium reacts with 0.497 kg of chlorine forming 819 g of sodium chloride, what mass of sodium reacted
4.00 mL of 2.0E-3 M iron(III) nitrate solution is mixed with 5.00 mL of 2.0E-3 M potassium thiocyanate solution, 6.00 mL of 0.500 M nitric acid solution
If 0.088 moles of sulfuric acid is mixed with water to make 411 mililiter of solution, what is the molarity of H+.
what is the name and formula for a compound with a composition percent of 77.7% Fe, 22.3% O and a molar mass of 71.85
Sulfuric acid (H2SO4) is a very strong diprotic acid. If 0.041 moles of sulfuric acid is mixed with water to make 169 mililiter of solution, what is the molarity of H+? Answer in units of M.
A 100 g sample of an unknown liquid absorbs 2000 J of heat energy, raising the liquid's temperature from 50 ?C to 70 ?C .What is the speci?c heat capacity of this liquid.
Separation of acetone from water by using MIBK - How much MIBK must be used if the final acetone concentration in the water-rich phase is 5 wt%?
Calculating effective charges on I and Br, The iodine monobromide molecule, IBr, has a bond length of 2.49 Angstroms and a dipole moment of 1.21 D.
Heat is lost to the styrofoam calorimeter. Assuming a 6.22 C temperature change for the reaction of HCl(aq) with NaOH(aq), calculate the heat loss to the inner 2.35-g styrofoam cup. The specific heat of styrofoam is 1.34 J/gC.
a sample of nitrogen gas is collected over water at a tempature of 23.0 c. what is the pressure of the nitrogen gas if atmospheric pressure is 785 mm hg
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