Please explain: Calculate the Ksp value for Bi2S3 which has a solubility of 1.0 x 10^-15 mol/L @ 25 degrees C.
I have the equation H2(g) + N2(g) yields NH3(g) I have balanced it 3H2 + N2 yields 2NH3 If I did this correct(if not, please show me how to correct) then how many moles of ammonia NH3(g) could be produced from 5 moles of H2(g) and 20 moles of N2(g)?
The gas in a sealed bag has a volume of 500mL where the atmospheric pressure is 600 mm of Hg. If I take this bag to a pressure of 420 mm of Hg and the temperature is the same what is the volume of the gas in the sealed bag. Please show the work. Thanks
I am on an equilibrium constant problem: 1/2 N2 + 3/2 H2 (ARROWS BOTH WAYS) NH3 K' = [NH3] / [N2]^1/2 [H2]^ 3/2 = K^1/2 (1.3 x 10^-2)^1/2=0.11 Why does it equal 0.11??
For OTA 101455,103139, 103642, 103997,103300, 103866, or 103940
Only for above listed OTAs. All others called in and revoked. pH and POH needed: Please show work 0.4 NH4ClO4 Ka=1.0x10^-14 Kb=1.8x10^-5
Only for OTA 103997, 103940, 103642, 103300, 103866, or 103139
Only for above listed OTAs-all others will be called in and payment removed.-NOT for 101455, 101298, 103058, 104335, et cetra!!! Problem: A 2.0 x 10^-1 M solution of the weak acid HB has a pH of 3.00 Calculate: a) [H^+] b) [OH^-] c) [HB] d) Ka value of HB
Only for OTA 103997, 103940, 103642, 103300, 103866, or 103139
Only for above OTA's-ALL others will be called in and revoked! ONLY ABOVE LISTED OTA's will be accepted! WHETHER ACIDIC OR BASIC IS PART C OF THE PROBLEM. Problem: A solution of sodium carbonate has a pH of 11.634 Calculate: a) [H^+} b) [OH^-] c) acidic or basic? d) Write net ionic equation for this reaction e) Write the ...continues
Only for OTA 103997, 103300, 103642, 103866, 103139,or 103940 only
Only above OTAs-All others will be called in. Stuck on this one-please explain-solved using ICE table. 0.5 HOAC HOAC + H2O arrow both ways H3O^+ + OAC^- Ka=[H3O^+] [OAC^-] / [HOAC]Why is product on bottom-always?? INItial 0.5,0,0 Change -x,+x,+x Equil 0.5-x,+x,+x Ka=1.8x10^-5 = (x)(x) / 0.5 -(x) = x2 /0.5 = 1.8 x 10^5 ...continues
Only for 103139,103997,, 103940, or 103642 only
Only for above OTAs Balance and do net ionic equation Explain Acidic: __Ag+__NO3^-1__Ag^+1 +__NO __IO4^-1 + __I ^-1 __I2 __Cr2O7-2 + __I-1 ® __Cr+3 + __I2 __P + __NO3^-1 __NO + __H3PO4 __SeO4^-2 +__ Cl^-1 SeO3^-2 + __Cl2 __Cr^+3 + __ClO3^-1 __CrO4^-2 + __Cl^-1 __Br2 arrow __Br^-1 + __BrO3^-1
Only for 103139,103997, 103940, or 103642 only
Only for above OTAs If doing by hand, please write dark onpaper before scanning. Thanks Balance and do total net ionic equations Please Explain math ... __NaCNS +__ KmnO4 +__H2SO4 arrow __K2SO4 + __MnSO4 + __NaCN +__H2O __Cu + __HNO3 __Cu(NO3)2 + __ NO + __H2O __U3O8 +__ H2SO4 arrow __UO2SO4 + __U(SO4)2 + __H20 __B ...continues
