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What is the sum of all coefficients when the following net ionic equation is balanced using the smallest whole number coefficients possible? Do not forget coefficients of one.
MnO4-+ Mn2+MnO2
Calculate the amount of solution (g or mL ) that contains each of the following amounts of solute: A) 8.00 g of NaClfrom a 12 % (m/m) NaCl solution. b)B 46 g of NaF from a 1.0 % (m/v) NaF solution c)4.50 g of KBr from an 20. % (m/m) KBr solution
Why would it be more appropriate to put the elements La and Ac in the bottom two periods and put Lu and Lr in the transition metals? Why don't we see the use of any sublevels higher than the f sublevel?
What is Go per mole of dichromate ions for the reduction of dichromate ions, Cr2O72-, to Cr3+ by bromide ions, Br-, in acidic solution?
The basic Salt sodium acetate, CH3COONa, is completely soluble in water. What is the pOH of a 0.25 M solution of sodium acetate?
How many grams of acetic acid will you need to prepare the 500 mL buffer. Note that the given concentration of acetate refers to the concentration of all acetate species in solution.
if 1.0 volumes of 1.0 m solutions of sodium hydroxide and lead ii nitrate are mized how many moles of product are
Problem- Write the balanced chemical equation for the reaction of the weak acid HCN with water. Include the phase of each species.
Problem- A newly discovered atom, Unk, is found to form a polar covalent bond with the comparatively more electropositive Phosphorus, P, with a bond energy of 450 kJ/mol. Bond energy: P-P = 490 kJ/mol; Unk-Unk = 347.0 kJ/mol. Determine the electro..
Additional pure propane is added to the system and the system is brought again to equilibrium at 10 bar and 323 K. What is the effect of the propane addition on the mole fractions of propane in the vapor and liquid phases
Oil smoke pots are related to the impurities, which often translate to taste, the oil. Which of these products has the highest smoke pot? When fats are said to be 'saturated' the element beg referred to is _____.
A large piece of iron with a volume of 0.25 m3 is lowered into a lake by means of a rope until it is just completely submerged. It is found that the support on the rope is less than when the iron is in air. How does the support vary as the iron is..
calculate the [OH^-] of each aqueous solution with the following [H3O^+] at 25 degrees C: a)baking soda, 1.0x10^-8 M b)orange juice, 2.0x10^-4 M c)milk, 5.0x1-^-7 M d)bleach, 4.8x10^-12 M
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