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A solution may contain the following ions Ag+, Cu^2+, Mn^2+, Ca^2+, and Na+. No precipitate formed when 0.10 M NaCl was added but a dark colored precipitate formed when H2S was added to an acidic portion of the solution. After the removal of the solid the solution was made basic and more H2S was added and a dark precipitate again formed. Treatment of the filtrate with (NH4)2CO3 resulted in a white precipitate. If no further test were made then what conclusions can you draw?
Solid strontium hydroxide is added to a solution of nitric acid. How many moles of strontium hydroxide are needed to react completely with 500. mL of 0.40 M nitric acid?
What is the activation energy in kJ of a reaction whose rate constant increases by a factor of 10 upon increasing the temperature from 303 K to 333 K
Deduce the structure of each alcohol (Structure of A and structure of B)
What two organic compounds result when 3-heptyne is treated with ozone followed by hydrolysis?
A sample of chlorine has two naturally occuring isotopes, the isotope Cl-35 makes up 75.8% of the sample, and the isotope cl-37 makes up 24.3 of the sample. Which of the following statements is true
Devise a chemical method for distinguishing between maleic and malonic acid. I thought of bromination of maleic since it is an alkene. Would bromination also occure with malonic acid
Dimethyl hydrazine ignites spontaneously upon contact with dinitrogen tetroxide. If 2 mol of dimethyl hydrazine are mixed with 4 mol of dinitrogen tetroxide, and the reaction an 85% yield, how many moles of N2, H2O and CO2 will be produced?
according to a study of us cigarette sales between 1955 and 1985 when the price of cigarettes was 1 higher consumption
Predict its structure by drawing the most stable dehydration product that could result after a single carbocation rearrangement of the intermediate?
Suppose that 25.0g of gold is initially at 27.0 Celsius. What is the final temperature of gold upon absorbing 2.35kJ of heat?
In a solution containing the following dissolved species, which would contribute positively to alkalinity. Explain
calculate the moles of h2 present in this gas sample. . 9. 1.0 gram of water at 25 c is heated to 100 c at which point
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