H2SO4(aq)+NaOH(s)→H2SO4(aq)+NaOH(s)→ (neutralization of both acidic protons) Express your answer as a chemical equation. Identify all of the phases in your answer.

The chlorine content of a pool with a capacity of 1.80×104 L was discovered to be 0.00145% by mass, which is well below the sanitary level of 0.00305%. How much chlorine needs to be added in order for the pool to meet the health regulation standard of 0.00305%? First draw a flowchart, then given that the pool consists of fresh water and chlorine, write the total mass (or alternatively chlorine mass) and fresh water balance equations, and then calculate the mass of chlorine in grams that needs to be added to the pool. Assume that the density of the pool water is the same as that of fresh water (1.00 kg/L), the pool is filled to its rated capacity (1.80×104 L), and that the required chlorine can be added to this capacity.

In the diagram below, one beaker contains pure water and the other contains an equal volume of seawater. Seawater has various salts dissolved in it. The beakers are sitting in a totally enclosed chamber, and the outside temperature and pressure are held constant. Identify the statements below about this situation that are correct.

Write the ions present in solution of Sn(NO2)4.Express your answers as chemical formulas separated by a comma (NO spaces!).Identify all of the phases in your answer (e.g. NO3-(aq),Cu2+(aq) ) ---------- Write the ions present in solution of NaHCO3.Express your answers as chemical formulas separated by a comma (NO spaces!).Identify all of the phases in your answer (e.g. NO3-(aq),Cu2+(aq) ) ---------- Even salts that are classified as "insoluble" according to the solubility rules will dissolve a small amount in water. Write the ions present in solution of CaSO4.Express your answers as chemical formulas separated by a comma (NO spaces!).Identify all of the phases in your answer (e.g. NO3-(aq),Cu2+(aq) )

What is the freezing point of a ethanol solution if that same solution boils at 79.5 ℃? The normal boiling point and freezing point of pure ethanol (C2H5OH) are 78.29 ℃ and -114.2 ℃, respectively. For ethanol, Kb = 1.23 ℃/m and Kf = 1.99 ℃/m.Please enter your response in standard notation to one decimal place.

You are a chemist and FBI crime scene investigator and find a sealed bag containing a suspicious white substance. The substance turns out to be a powder containing fentanyl (C22H28N2O, 336.470 g/mol) and lactose (C12H22O11) 342.298 g/mol). To find out exactly how much fentanyl was in the bag, you use a 100.0 mL volumetric flask to dissolve 1.000 g of the white powder in water. The osmotic pressure for the solution at laboratory temperature, 21.7 °C, is 538.2 mmHg. What percent of the white powder is fentanyl?

Complete and balance the following equations. Na2O2 (s) + H₂O(1) → Express your answer as a chemical equation including phases. ΑΣΦ ? A chemical reaction does not occur for this question.

Water is not the only chemical contaminant that can be removed from liquids and gasses using molecular sieves. Ammonia, for example, can be removed from gaseous samples using the same 3Å molecular sieves that we used to remove water from ether. Other common contaminant gasses like sulfur dioxide, dihydrogen sulfide and ethylene, however, cannot be removed using 3Å sieves. They can only be removed using 4Å molecular sieves. Explain why this is so.

Two 1-L beakers, A and B, each containing a different aqueous solution of fructose (a nonvolatile sugar with MW = 180.16 g/mol) are placed together in a box, which is then sealed. The temperature remains constant at 20 °C. Initially, there is 220 mL of solution in A and 650 mL of solution in B. As the solutions stand in the sealed box, their volumes change slowly for a while. When they stop changing, beaker A contains 430 mL and beaker B contains 440 mL. It is then determined that the solution in A is 1.74 M in fructose and has a density of 1.12 g mL-¹. (a) What is the molar concentration of fructose in the solution in beaker B at the end? M (b) Calculate the concentration of fructose in the solution in A at the start. M (c) Calculate the concentration of the fructose in the solution in B at the start. M (d) The vapor pressure of pure water at 20 °C is 17.5 torr. What is the pressure of water vapor in the box at the end, after the volumes have stopped changing? torr