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Problem- If 38.5 mL of lead (II) nitrate solution reacts completely with excess sodium iodide solution to yield a 0.628 g of precipitate, what is the molarity of lead (II) ion in the original solution?
Explain the each and every step in detail for help
The mass ratio of sodium to fluorine in sodium fluoride is 1.21:1. A sample of sodium fluoride produced 36.5 {rm g} of sodium upon decomposition. How much fluorine (in grams) was formed?
Problem- Without using the appendix, arrange each group in the order of increasing standard molar entropy, S, and explain your order
UV Spectrum of caffeine: Calculate the molar extinction coefficient (e) for caffeine. Show all your work. Note: Assume the diameter to be the cell holder to be 1 cm.
Nitrogen forms several gaseous oxides. One of them has a density of 1.27 g L-1 measured at 764 mmHg and 150C. write the formula of the compound
Solid iron reacts with liquid water to produce solid iron (III) oxide and hydrogen gas. Balance the redox reaction. Explain what the oxidizing agent in the redox reaction is as well as what is the total number of electrons transferred in the react..
Briefly explain why a volumetric pipet with a chipped or broken tip is usually useless,while a buret with a chipped or broken tip can still deliver accurate volumes.
Question- Calculate the limiting reagent and theoretical yield of aniline from 13.1g of tin and 5.2ml of nitrobenzene. 1:1 mole ratio in chemical equation.
why is it important to allow the flask and contents to cool to room temperature before weighing
a small bubble rises from the bottom of a lake where the temperature andnbsppressure are 4degc and 3.0 atm to the
Each carbon-carbon sigma bond in the molecule allene (C3H4) is formed by the overlap of a ___ orbital on each end carbon with a ___ orbital on the central carbon.
In ploystyrene beaker , we mixed 30 mL of 0.1 M sodium acetate and 15 mL of 0.1 M hydrocloric acid. we measured the PH ( in PH meter ) it was 4.86 and then we added 5 mL of 0.1 M NaOH to this buffer.
Carbonyl fluoride, , is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride
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