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Write a molecular equation for the precipitation reaction (if any) that occurs when the following solution are mixed. How do you convert these over and please show steps.
1. potassium chloride and lead (II) acetate
2. lithium sulfate and strontium chloride
3. potassium bromide and calcium sulfide
4. chromium (III) nitrate and potassium phosphate
Calcluate the energy required to convert 1.70g of ice originally at -12.0 oC into stream at 105oC. The other two answers on this site are completely different from the solutions manual.
The pH of a 0.25 M aqueous solution of hydrofluoric acid, HF, at 25.0 °C is 2.03. What is the value of Ka for HF
1 calculate the volume of 0.150 m naoh titrant added to 50.00 ml of a 0.0100 m hcl analyte solution to produce a ph of
Draw the atomic orbital diagram for the valence electron in Selenium (S) and then indicate the quantum numbers?
A sample of nitrogen gas, N2 is collecyed in a 100 mL container at a pressure of 688 mm Hg and a temperature of 565 degress celsius. How many grams of nitrogen gas are present in this sample.
What happens to the interference pattern that results from the diffraction of electrons passing through two closely spaced slits if the rate of electrons going through the slits is decreased to one electron per hour
The value of ?Ho for the reaction below is -126 kJ. The amount of heat that is released by the reaction of 25.0 g of Na2O2 with water is ________kJ. 2Na2O2 (s) + 2 H2O (l) -> 4NaOH + O2 (g)
An empty gasoline can with dimensions 15 cm by 40 cm by 12.5 cm is attached to a vacuum pump and evacuated. if the atmospheric pressure is 14.7 lb/in^2.
There are very few compounds that contain an element from the noble gas family (elements in column 18, rightmost column). Explain why there are so few noble gas compounds in nature.
A fluorinated organic gas in a cylinder is com- pressed from an initial volume of 960 mL at 158 Pa to 478 mL at the same temperature. What is the final pressure? Answer in units of Pa.
In a manometer the mercury level at the open end of the tube is 215 mm higher than at the closed end of the tube. If the atmospheric pressure is 1 atm.
when liquid water is introduced into an evacuated vessel at 25c some of the water vaporizes. preshydict how the
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