5. What is the weight /weight percent of a .634m sodium phosphate solution? (3pts)
In a 0.25 M aquous solution of sodium phosphate What is the total concentration of all ions?
To prepare a buffer of 7.00, a 2.00 M solution of sodium dihydrogen phosphate is prepared. To make the buffer, sodium hydrogen phosphate is to be added. What mass of sodium hydrogen phosphate should be measured out to make 500 ml of the buffer?
What is the molarity of a solution of sodium phosphate that is made by dissolving 13 g of the solid in 500.0mL of water? A. 1.5 x 10-1M B. 7.9 x 10-2M C. 1.6 x 10-4M D. 0.22 M E. 0.15M
Copper (II) phosphate can be prepared by adding sodium phosphate to a solution of copper (II) chloride 2Na_3 PO_4(aq) + 3CuCl_2(aq) rightarrow Cu_3(PO_4)_z(s) + 6NaCl_(aq) What volume of 0.175 M Na_3PO_4 solution is necessary to completely react with 95.4 mL of 0.102 M CuCl_2? How many grams of Cu_3(PO_4)_2 will be precipitated using the amounts of reactants described in part (a)? What will the molarity of the NaCl solution be after the reaction describe in part (a) is complete?
You mix a solution of 0.5M sodium hydroxide with a 0.5M solution of Sodium hydrogen phosphate. Write the balanced chemical equation for the reaction. Identify the types of acids and bases (strong vs. weak) in the reaction. If the equilibrium lies toward the side with the weaker acid, which side of the equilibrium is the reaction on? Reactant or product?
4, Question Details Solid sodium phosphate is added to an aqueous solution of manganese(II) nitrate in a series of experiments. The salts react to form a precipitate according to the chemical equation 2 Na3PO4(aq) 3 Mn(NO3)2(aq)Mn3(PO4)2(s) 6 NaNO3(aq) In each experiment, the precipitate was collected, dried, and weighed Exp 1 Exp 2 Exp 3 Exp 4 Exp 5 Exp 6 Volume of manganese) 487.6 m nitrate Mass of sodium phosphate g Mass of precipitate 377.6 ml 323.7 mL 232.4 mL...
(5 pts.) A laboratory assistant is preparing 4 liters of a 0.5M solution of sodium phosphate (NasPO4). How many grams of Na POs the laboratory assistant need to add to achieve the desired molar concentration? (5 pts.) The laboratory assistant found the hydrated form, Na,Po412H.O, in the lab instead of NasPO4. Should he/she change the amount of Na,PO.12H20 added? If so, what is the amount of NasPOs.12H2O to be added? a) b)
silver nitrate + sodium phosphate + sodium nitrate yields silver phosphate + sodium phosphate Ib. Silver nitrate Balanced: Complete lonic: Net Ionic: + sodium carbonate yields zine carbonate+ sodium nitrate 2a. Zinc nitrate (ag) (ag) Balanced: Complete lonic: Net lonic: 2b. Zinc nitrate (aq) + sodium phosphate yields zinc phosphate+ sodium nitrate (ag) () (a) Balanced: Complete Ionic: Net Ionic: Report Form - Chemical Reactions 50 yields aluminum iodide (ag) 3a. Aluminum nitrate +potassium iodide (ag) Balanced: Complete lonic: Net...
If a potato is placed into a 5% sodium solution it looses weight. Why? Explain the direction of water movement and the tonicity of the core and the beaker solution using terms like hypotonic-isotonic-hypertonic If a potato is placed into a 0% (H20) solution it gains weight. Why? Explain the direction of water movement and the tonicity of the core and the beaker solution using terms like hypotonic-isotonic-hypertonic
a) You need to make an aqueous solution of 0.194 M sodium phosphate for an experiment in lab, using a 250 mL volumetric flask. How much solid sodium phosphate should you add? b)How many milliliters of an aqueous solution of 0.229 M ammonium iodide is needed to obtain 6.59 grams of the salt?