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Please assist with this:1a. How many mL are required to make a 2.5 M solution with 23.4 grams of lithium sulfate?
1b. How many L are required to make a 0.583 M solution with 3.2 grams of sodium nitrate?
1c. Determine the molar concentration of chlorine in 2.5 M calcium chloride.
1d. Determine the molar concentration of sodium in 0.283 M sodium phosphate.
1e. How many mL of 5.0 M stock solution do you need to make 3.00 L of a 1.53 M potassium chloride solution?
What is the rockets maximum altitude?
While building a character table struggling with remembering explain how to find the irreducible representation for Rz. Explain how to determine it for x, y and z but not for Rz, Rx or Ry
Calculate ?G° for the reaction of ammonia with fluorine. 2NH3(g) + 5F2(g) ? N2F4(g) + 6HF(g) Substance: NH3(g) F2(g) N2F4(g) HF(g) ?G° f (kJ/mol)
Describe the concept of chemical bonds and valence. Include in your discussion why firefighters should be concerned with CO. Your response must be at least 200 words in length.
Draw a picture of the following cell and write reduction half-reactions for each electrode.Pt(s)|Fe3+ (aq),Fe2+(aq)||CrO72-(aq)|Cr3+ (aq),HA(aq)|Pt(s)
How many grams of dry NH_4Cl need to be added to 1.60 L of a 0.700 it M solution of ammonia, NH_3, to prepare a buffer solution that has a pH of 8.62? K_b for ammonia is 1.8 * 10^{-5}.
A 1.00 L buffer solution is 0.250 M in HF and 0.250 M in NaF. Calculate the pH of the solution after the addition of 100.0 mL of 1.00 M HCl. The Ka for HF is 3.5E-4
box contains a mixture of small copper spheres and small lead spheres. the total volume of both metals is measured by
the decomposition of solid ammonium carbonate to gaseous ammonia and carbon dioxide is an endothermic reaction. given
Sodium carbonate (\rm Na_2CO_3) is used to neutralize the sulfuric acid spill. How many kilograms of sodium carbonate must be added to neutralize 3.02×103 kg of sulfuric acid solution
A solution is made by dissolving 20.6 g of cobalt(II) nitrate, Co(NO3)2, in enough water to make exactly 500 mL of solution. Calculate the concentration
What is the reason for using activated carbon during a recrystallization. Why is gravity filtration and not suction filtration used to remove insoluble suspended impurities and charcoal from a hot solution
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