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Calculate the molality of a mixture containing 100.0 mg of vanillin and 12 mg of lauric acid. Include sig figs and unit abbreviation in your answer.
At 25 °C, the vapor pressure of acetone is 230 mmHg and the vapor pressure of toluene is 284.5 mmHg. What is the total vapor pressure at 25 °C above an equimolar mixture of these two miscible liquids?
Read carefully, 0.1M HCl is added into a mixture of 25mL of water and 25mL of Ca(OH)2. For the end point to be reached 1.3mL of 0.1M HCl is added into the mixture. How would I calculate the molarity of the hydroxide ion (OH-) for this final mixtur..
To what volume should you dilute 132ml of an 8.00M CuCl2 solution so that 52.0ml of the diluted solution contains 4.33g CuCl2
Chromium metal can be produced from the high temperature reaction Cr2O3 [chromium ||| oxide ] with silicon or aluminum by each of the following reactions
Explain the geometry shape around a carbon atom which has one double bond as well as two single bonds to its neighboring atoms. Explain what is the approximate angle between any two of these bond directions
Three identical flasks contain three different gases at standard temperature and pressure. Flask A contains CH4, flask B contains CO2, flask C contains N2. Which flask contains the largest number of molecules
Calculate the pH of a 1.00 L solution which is made up of 0.046 mol acetic acid and 0.026 mol sodium acetate.
In basic solution, bismuthate ion (BiO3-) reacts with manganese (II) ion to produce bismuth(III) and permanganate ions. Balance the redox reaction without the states of matter.
calculate the number of excess reagent units remaining when 84 C2H4 molecules and 270 O2 molecules react?
Nutritional tables give the potassium content of a standard apple (3 apples/lb) as 159 mg. How many grams of potassium are in 3.58 kg of apples
A 5cm3 solution of H2O2 liberates 0.508g of Iodine from an acidified KI solution. Compute the strength of H2O2 solution in terms of volume strength at STP
calculate the total volume of gas at 128 and 745 produced by the complete decomposition of 1.67 of ammonium
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