Do you mean: What mass of ethanoic acid would you use and how would you prepare 0,500 dm3 of a 0,500 mol/ dm3 ethanoic acid solution? (molecular mass of ethanoic acid=60,0 g/mole)? ---------- (0,500 dm3)(0,500 mol/ dm3) = 0,250 mol ethanoic acid. (0,250 mol)(60,0g/mol) = 15,0 ...
(a) 3NiCl2(aq) + 2Na3PO4(aq) ---> Ni3(PO4)2(s) + 6NaCl (b) 3Ni^+2(aq) + 6Cl^-(aq) + 6Na^+(aq) + 2PO4^-3(aq) ---> Ni3(PO4)2(s) + 6Cl^-(aq) + 6Na^+(aq) (c) [Cancel out the ions that have not changed to get the net ionic equation]
Do you mean in determining the volume of that solid? If so, we can find the volume from the measured dimensions only for geometrical solids (cube, rectangle, cylinder, cone, sphere, etc.). For irregular solids, measurement of dimensions can't be done very precisely.
The 2nd reaction is 2FeCl3(aq) + 3Zn(s)--> 3ZnCl2(aq) + 2Fe(s) The excess zinc removal reaction is Zn(s) + H2SO4(aq) --> ZnSO4(aq) + H2(g)
In the original question, C6H12 is the formula of cyclohexane, not hexane. DrBob interpreted it appropriately as cyclohexane. The "chair" and "boat" forms of cyclohexane are conformational isomers that exist in any sample of cyclohexane, They are not distin...
There is no "correct" value of a probability but some estimates are better than others. The "standard deviation" is probably better than the average deviation as a measure of uncertainty.
I think you mean big spaces IN the 2nd and 3rd periods. There are no elements in columns #3 to #12 because there is no "2d" subshell of electrons. Also because the energy of the 3d subshsell is higher than that of the "4s" subshell. The first row of element...
The Chemical reaction is: Mg + 2HCl --> MgCl2 + H2 1) Divide the grams of Mg by the atomic mass of Mg to get moles of Mg. 2) Moles of HCl = (2)(moles of Mg) 3) Moles of HCl = (V)(5.0 mol/L) or Volume of HCl = (mol. HCl) / (5.0 mol/L) --------- NOTE: The volume of HCl will b...
Complete and balance the reactions below: a) HClO4 + KOH --> b) CsOH + HNO3 --> c) Ca(OH)2 + HI -->
Yes, metals are deposited at the cathode.