Question

A student dissolves 9.4 g of resveratrol (C14H12O3) in 450. mL of solvent with a density...

A student dissolves 9.4 g of resveratrol (C14H12O3) in 450. mL of solvent with a density of 0.85g/mL. The student notices that the volume does not change when the resveratrol dissolves in it. Calculate the molarity and molarity of the students solution. Round answer to 2 significant digits

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A student dissolves 3.7g of biphenyl C12H10 in 500.mL of a solvent with a density of...
A student dissolves 3.7g of biphenyl C12H10 in 500.mL of a solvent with a density of 0.91/gmL. The student notices that the volume of the solvent does not change when the biphenyl dissolves in it. Calculate the molarity and molality of the student's solution. Be sure each of your answer entries has the correct number of significant digits.
A chemistry graduate student is given 450.mL of a 1.20M ammonia NH3 solution. Ammonia is a...
A chemistry graduate student is given 450.mL of a 1.20M ammonia NH3 solution. Ammonia is a weak base with Kb=1.8x10^−5. What mass of NH4Cl should the student dissolve in the NH3 solution to turn it into a buffer with pH =9.40? You may assume that the volume of the solution doesn't change when the NH4Cl is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits.
A chemistry graduate student is given 450.mL of a 0.90M acetic acid HCH3CO2 solution. Acetic acid...
A chemistry graduate student is given 450.mL of a 0.90M acetic acid HCH3CO2 solution. Acetic acid is a weak acid with Ka=1.8x10^−5. What mass of KCH3CO2 should the student dissolve in the HCH3CO2 solution to turn it into a buffer with pH =4.35? You may assume that the volume of the solution doesn't change when the KCH3CO2 is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits.
The density of a 40 wt% solution of ethanol in water is 0.937 g/mL. The density...
The density of a 40 wt% solution of ethanol in water is 0.937 g/mL. The density of n-butanol is 0.810 g/mL. What is the concentration of n-butanol in ppm if you dissolve 15 μL of this alcohol in a 40 wt% solution of Ethanol in water. The final volume of the solution is 25 mL. Assume that the density of the ethanol solution does not change upon dissolution of the butanol. Use the correct number of significant figures!
A student dissolves 5.00 g calcium hydroxide to make 100.0 mL of solution. If 63.5 mL...
A student dissolves 5.00 g calcium hydroxide to make 100.0 mL of solution. If 63.5 mL of this solution is required to neutralize 150.0 mL of a hydrofluoric acid solution, what is the concentration of the original HF solution? (The molar mass of Ca(OH)2 is 74.10 g/mol.) I need help with this asap please.
Suppose 3.10g of sodium iodide is dissolved in 250.mL of a 73.0mM aqueous solution of silver...
Suppose 3.10g of sodium iodide is dissolved in 250.mL of a 73.0mM aqueous solution of silver nitrate. Calculate the final molarity of iodide anion in the solution. You can assume the volume of the solution doesn't change when the sodium iodide is dissolved in it. Round your answer to 2 significant digits.
A student dissolves 0.326 g of a powdered antacid in 32.36 mL of 0.1034 M HCl....
A student dissolves 0.326 g of a powdered antacid in 32.36 mL of 0.1034 M HCl. The student boils the mixture and then allows it to cool. Lastly, the student adds phenolphthalein indicator to the mixture. Suppose 11.72 mL of 0.1506 M NaOH is required to turn the solution from colorless to pale pink. Calculate the total moles of OH- added.
Suppose 0.829g of ammonium iodide is dissolved in 250.mL of a 30.0mM aqueous solution of potassium...
Suppose 0.829g of ammonium iodide is dissolved in 250.mL of a 30.0mM aqueous solution of potassium carbonate. Calculate the final molarity of iodide anion in the solution. You can assume the volume of the solution doesn't change when the ammonium iodide is dissolved in it. Round your answer to 3 significant digits.
Suppose 1.87g of ammonium iodide is dissolved in 300.mL of a 45.0mM aqueous solution of potassium...
Suppose 1.87g of ammonium iodide is dissolved in 300.mL of a 45.0mM aqueous solution of potassium carbonate. Calculate the final molarity of ammonium cation in the solution. You can assume the volume of the solution doesn't change when the ammonium iodide is dissolved in it. Round your answer to 3 significant digits.
A chemistry student weighs out 0.0432 g of formic acid (HCHO2) into a 250 mL volumetric...
A chemistry student weighs out 0.0432 g of formic acid (HCHO2) into a 250 mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.0700 M NaOH solution. Calculate the volume of NaOH solution that the student will need to add to reach the equivlence point. Be sure your answer has the correct number of significant digits.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT