References TUTOR Dilution A stock solution of Mg(NO2)2 is available to prepare solutions that are more...
A stock solution of K S is available to prepare solutions that are more dilute. Calculate the volume, in ml., of a 2.0-M solution of KS required to prepare exactly 100 ml of a 0.130-M solution of Kys ml Submit Show Approach Show Tutor Steps Submit Answer Try Another Version 10 item attempts remaining Click to try another version of this item. "Note that your response(s) and the points you have earned on this item will be cleared. Previous News)...
TUTOR Dilution A stock solution of BaS is available to prepare solutions that are more dilute Calculate the volume, in ml of a 2.0-M solution of Bas required to prepare exactly 500 ml. of 0.440-M solution of Bas Bbm AWE Try Another Version
о References) TUTOR Solution Concentration A solution is made by dissolving 27.7 g of nickel(II) chloride, NiCh, in enough water to make exactly 100 mL of solution. Calculate the concentration (molarity) of NiCl in mol/L (M). pt pt M NICl pr Submit Show Approach Show Tutor Steps pt Submit Answer Try Another Version 10 item attempts remaining 1 pt 1 pr 1 pt 1 pt 1 pt 1 pt 1 pf 1 pr 1 pr Pievious Naid a e to...
A stock solution of NiBr2 is available to prepare solutions that are more dilute. Calculate the volume, in mL, of a 2.0-M solution of NiBr2 required to prepare exactly 250 mL of a 0.640-M solution of NiBr2
TUTOR Redox Titrations The concentration of Fe in a solution is determined by titrating it with a 0.1613 M Ce solution. The balanced net ionic equation for the reaction is: Ce (aq)+ Fe(aq)-- Ce"(aq)+ Fe"(aq) In one experiment, 18.89 mL of the 0.1613-M Ce solution. solution is required to react completely with 30.00 ml. of the Fe solution. Calculate the concentration of the Fe M Submit Show Approach Show Tutor Steps Submit Answer Try Another Version 6 item attempts remaining
A stock solution of MgCrO4 is available to prepare solutions that are more dilute. Calculate the volume, in mL, of a 2.0-M solution of MgCrO4 required to prepare exactly 250mL of a 0.510-M solution of MgCrO4. _____ mL? A solution is made by dissolving 19.6 g of iron(II) bromide, FeBr2, in enough water to make exactly 500 mL of solution. Calculate the concentration (molarity) of FeBr2 in mol/L (M). _____ M FeBr2 Calculate the mass, in grams, of CoBr2 required...
[References] INTERACTIVE EXAMPLE Using a Coffee-Cup Calorimeter Suppose you place 0.0500 g of magnesium chips in a coffee cup calorimeter and then add 100.0 ml. of 1,00 M HC. The reaction that occurs is Mg(s) + 2 HCl(aq)-H2(g) + MgCl(aq) The temperature of the solution increases from 23.41 °C (296.56 K) to 25.66 °C (298.81 K) What is the enthalpy change for the reaction per mole of MR? Assume a specific heat capacity of the solution is 4.20 J/gK and...
TUTOR Determining Frequency from Wavelength What is the frequency of ultraviolet light with a wavelength of 125 nm? 2.39x10^13 Hz x Resubmit Show Approach Show Tutor Steps Incorrect You can work though the tutor steps and submit your answer again. Submit Answer Try Another Version 8 item attempts remaining
Determine (OH"], [HT], and the pH of each of the following solutions. a. 2.9 M KCI [OH-] = [H+] = pH = b. 1.0 M KC2H302 (KA = 1.80 x 10-5) [OH"]= M (H+) = pH = Submit Answer Try Another Version 6 item attempts remaining [References] A 10.0-ml sample of an HCl solution has a pH of 2.00. What volume of water must be added to change the pH to 4.9? Volume = ml Submit Answer Try Another Version...
What is the molarity of the solution prepared by diluting 20.0 mL of 0.502 M Mg(NO3)2 solution to each of the following final volumes? a. 40.0 mL Molarity = M b. 125 mL Molarity = c. 1.10 L Molarity = d. 375 mL Molarity = M Submit Answer Try Another Version 10 item attempts remaining