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The current dietary recommendation is to consume less than 0.1 mol of sodium per day. This is about one teaspoon of table salt. It includes all salt and sodium consumed, including sodium used in cooking and at the table. The sodium content of a popular type of fast-food hamburger is 730 mg
a) How many moles of sodium ions are present in one of these hamburgers?
b) How many of these hamburgers can you eat in a day to fulfill all of your sodium dietary requirements?
A 4.305-gram sample of a nonelectrolyte is dissolved in 105 grams of water. The solution freezes at -1.23°C. Calculate the molecular weight of the solute. Kf for water = 1.86°C/m.
Calculated molarity of HClO: .50/.4541=.174 2) calculated molarity of NaClO: (5.86g/74.45 g/mol)/(.4541L=1.10) 3) Set up ICE chart and calculated H+(x). x=(3E-8)(1.10)/(.174) = 1.90E-7 4) took negative log of 1.90E-7 to get a pH of 6.72.
ca3fpo43s 5h2so4l 10h2ol ---gt 5caso4.2h2os hfg 3h3po4for each 100.0 grams of phosphoric produced what volume of
some ice cubes at 0 degrees c with a total mass of 379g are placed in a microwave oven and subjected to 750. w 750.
Draw the reaction product(s) formed by the bromination of (z)-stilbene, designate all product sterocenters accurately and label all sterocenters in the final product(s)
The R1 value of uo2 in the solvent system used in this module is 0.68. explain which of the other cation tests used in this expirment it would interfere with, what alternate tesr reaget you would therefore use to identify that other cation and whi..
The analysis of Ca2+and Mg2+in urine samples could be performed in a way similar to the EDTA analysis of the calcium content in water. For example, a 25.0 mL aliquot of a urine sample (buffered to pH = 10.0) required 17.2 mL of 0.0776 M EDTA to re..
For the reaction: 2NO(g)+2H2(g)-->2H2O(g) at equilibrium in a 4.0L container at 25oC. Suppose 2.5 mol of each component initally is put into the container. At equilibrium 2.5 mol of NO is present. What is Kc for the reaction at the temperature?
The data for the trickling filter is the following: recirculation ratio = 1.5; diameter = 25 m; depth = 2 m. Determine the hydraulic load (m3/dm2) and the treatment efficiency of the trickling filter.
boyles apprentice observes that the air trapped in air tube occupies 24.8 cm3 at 1.12 atm.by adding mercury to the tube
A 0.3728 g sample of potassium hydrogen phthalate is dissolved in 100 mL of water. If 43.82 mL of sodium hydroxide solution are required to reach the equivalence point, what is the molarity of the sodium hydroxide solution
Find the molarity of a Ca(OH)2 solution,given that 388 mL of it is neutralized in a titration by 117 mL of 0.0058 M HNO3.
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