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A solution containing sodium fluoride is mixed with one containing calcium nitrate to form a solution that is 0.015M in NaF and 0.010M in Ca(NO3)2. Will a precipitate form in the mixed solution? If so, identify the precipitate.
Describe the mixture before it is centrifuged. Be specific using scientific words that aplly such as homogeneous or heterogeneous
I understand that the height of a peak in NMR spectroscopy indicates the number of identical hydrogens in that particular group. But what does it mean when peak height is measured in non-H units lacking a common denominator
You prepared a 0.250 M solution by diluting 8.45(+-0.04)mL of 28.0(+-0.5)mL wt.%NH3 (density=0.899(+-0.003)g/mL up to 500.0(+-0.2)mL. Find the uncertainty in 0.250 M.
What is the chemical balance equation and what causes the color and precipitation?
A graduate student tried to make -fluorophenylmagnesium bromide by adding magnesium to an ether solution of -fluorobromobenzene.
The daily dose of ampicillin for the treatment of an ear infection is 115 mg/kg of body weight. What is the daily dose for a 34-lb child?
If a sodium hydroxide solution is prepared by dissolving it in a volumetric flask and diluting to the line with mixing, will the level be on the line, below the line, or above the line on the following day?
An evaluation of R was performed, following the procedure described in this module. The barometric pressure was 736 torr, the temperature was 295 K, and the volume of hydrogen gas collected was 35.6 mL. The calculated value of R was 82.1mL atm K-1..
For one of the solutions you make up for this week's experiment, 8.00 mL of 2.0E-3 M iron(III) nitrate solution is mixed with 1.00 mL of 2.0E-3 M potassium thiocyanate solution,
The vapor pressure of pure propyl chloride is 347 torr at 25°C and that of pure propyl bromide is 133 torr at 25°C. Assume that the solution is an ideal solution.
Using calorimetry experiment, how many grams of CaCl are required to cause a burn at 60 degrees celsius in 1000mL of water?
A smple of mixture of NaCl, Caco3 and SiO2 weighed 7.30 grams. During the water wash the sample lost 2.21 grams. After treatment with HCL, the sample weighed 2.05 grams. a. What is the perecent of NaCL by mass in the sample
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