Solutions of sodium hypochlorite. NaClO are sold as a bleach (such as Clorox). They are prepared by the reaction of chlorine with sodium hydroxide. 2NaOH(aq)+Cl_(2)(g)arrow NaCl(aq)+NaClO(aq)+H_(2)O(l) If you have 1.29 mol of NaOH in solution and 1.60 mol of Cl_(2) gas available to react,which is the limiting reactant? NaOH Cl_(2) How many moles of NaClO(aq) could be obtained? square mol
Which of the following functional groups cannot hydrogen bond with itself? alcohol carboxylic acid amine ether
One mole of copper has a mass of 63.5 grams. Approximately how many atoms of copper are present in one mole of copper? 63 atoms 64 atoms 32times 10^23atoms 6times 10^23atoms
What is the total pressure in a 10.0 Lflask which contains 0.127 mol of H_(2)(g) and 0.288 mol of N_(2)(g) at 20.0^circ C 0.681 atm 0.306 atm 0.998 atm 0.693 atm
Which is an organic thickener? A. Lithium 12 Hydroxystearate B. Silica Gel C. Organo Clay D. Polyurea E. Dithiophosphate F. UNKNOWN
What is the final,balanced equation for this reaction? 2Cr^3+(aq)+6Cl^-(aq)arrow 2Cr(s)+3Cl_(2)(g) 2Cr^3+(aq)+2Cl^-(aq)+6e^-arrow Cl_(2)(g)+2Cr(s) Cr^3+(aq)+6Cl^-(aq)+3e^-arrow 2Cr(s)+3Cl_(2)(g) Cr^3+(aq)+2Cl^-(aq)arrow Cr(s)+Cl_(2)(g)
1. Identify the elements located in each position on the periodic table. a. period 3, group 16 b. period 5, group 9 c. period 6, group 18
Carbon tetrachloride (CCl_(4)) is square square ionic.
Given the balanced equations: Zn+2HClarrow ZnCl_(2)+H_(2) When 1 mole of Zn reacts with 0.8 mol of HCl, which of the following will be true? Zn will be the limiting reactant None of the above Zn will be the excess reactant HCl is the excess reagent
Write the formula for the ionic compound barium fluoride. square
Hydrogen sulfide is: A) Odorless B) Colorless C) Not flammable D) Red in color
Question 21 Calculate $\Delta _{r}G^{\circ }$ at $25.0^{\circ }C$ for the reaction below. $2Na(s)+2H_{2}O(l)\rightarrow 2NaOH(aq)+H_{2}(g)$ Given: $\Delta _{r}H^{\circ }=-314kJ$ and $\Delta _{r}S^{\circ }=-117J/K$ (Report your answer in units of kJ, to one decimal place, i.e xxx.x, and no units are necessary in the answer.) (Remember to include a negative sign, if necessary.)
Which type of reaction is represented by the generic equation $AB+CD\rightarrow AD+CB$ combustion decomposition single replacement double replacement
Given the equilibrium constants for the following reactions: $4Cu(s)+O_{2}(g)\rightleftharpoons 2Cu_{2}O(s),K_{1}=6.19$ $4CuO(s)\rightleftharpoons 2Cu_{2}O(s)+O_{2}(g),K_{2}=0.16$ what is K for the system $2Cu(s)+O_{2}(g)\rightleftharpoons 2CuO(s)$ equivalent to? (Report your answer to four decimal places, i.e.xxxx) $\square $
What is the pH of a solution made by combining 0.484 m $NaC_{2}H_{3}O_{2}$ with 0.042 M $HC_{2}H_{3}O_{2}$ ? The $K_{a}$ of acetic acid is $1.75\times 10^{-5}$ (Report your answer to three decimal places, i.e x.xxx)
As pure molecular solids , identify the types of intermolecular forces in each: $PH_{3}$ $\square $ HF $\square $ $CO_{2}$ $\square $
What is the molality of ethanol $(C_{2}H_{5}OH)$ in an aqueous solution that is $48.2\% $ ethanol by mass? (Report your answer to two decimal places, i.e xx.xx, and no units are necessary in the answer.)
What is the molality of ethanol $(C_{2}H_{5}OH)$ in an aqueous solution that is $48.2\% $ ethanol by mass? (Report your answer to two decimal places, ite xxxx, and no units are necessary in the answer.)
Continue to shake until no more salt will come out of the shaker. What happens to the last several crystals of salt that come out? The sodium ions dissolve while the chloride ions sink to the bottom. The salt crystals react with the water to form a new compound. All of the ions separate from each other and dissolve into the water. The salt crystals don't dissolve in the water and fall to the bottom unchanged.
Consider the reaction of magnesium silicide with water shown below: $Mg_{2}Si(s)+4H_{2}O(l)\rightarrow 2Mg(OH)_{2}(aq)+SiH_{4}(g)$ In the reaction of 13.13 g $Mg_{2}Si$ with excess water, 16.03 g $Mg(OH)_{2}$ were produced. Calculate the percent yield of $Mg(OH)_{2}$ Enter the answer rounded to 2 decimal places.Units are not necessary. Answer: $\square $
