Determine the number of moles in 1.95 x 1023 formula units of MgCl2.
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Q: Use the following balanced equation for problems 1–5. Molar masses are given below. 2 As + 3 H2 2…
A:
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- If 10x TBE contains 0.89 M Tris-borate, 0.89 M Boric acid, and 0.02 M EDTA, what is the Molar concentration of Tris-borate in 100 ml of 1x TBE?Determine the fluoride ion concentration for a saturated solution of magnesium fluoride. K sp = 7.4 x 10-11Normal blood contains 3 mEq/L of Mg2+. How many milligrams of Mg2+ are present in 150.0 mL of blood?
- Balance the following equation, and tell how many moles of nickel will reactwith 9.81 mol of hydrochloric acid.Find the number of moles for acetylsalicylic acid when the mass is 5.08g.9. 1.4 g of glucose (C6H1206) is dissolved in 150 ml of water (final volume). What is the final number of moles and the molarity of the solution?
- The density of trifluoroacetic acid vapor was determined at 118.1 °C and 468.5 torr, and found to be 2.784 g/L. Calculate K, for the association of the acid. 0-H...O 2CF,CO,H(g) = CF;C CF,C(g) O----H-ODetermine the molar mass of Mg(OH)₂. Provide an answer to two decimal places.What is the molarity of a solution that contains 50.0 g of vitamin B1 hydrochloride (molar mass = 337 g/mol) in 160 mL of solution?
- Consider the following acids and their ionization constant, determine which conjugate base is HCOOH Ka = 1.7 x 10-4 (b) HCN Ka = 4.9 x 10-10What mass of sodium glycolate (NaC2H3O3) should be added to 400.0 mL of 1.00 M glycolic acid to produce a buffer solution with a pH of 4.00? Ka = 1.47 x 10-4. Please indicate the full solutions.A solution is made by dissolving 9.5 g of sucrose, C12H22O11 (molar mass 342.3 g mol-1) in water to make 250.0 mL of solution. What is the molarity of the solution?