Use the following balanced equation for problems 1–5. Molar masses are given below. 2 As + 3 H2 2 AsH3 + 150. kcal molar masses 74.92 g 2.02 g 77.95 g How many moles of hydrogen are required to react with 25.00 moles of arsenic, As ?
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- You are presented with the following prescription: Rx Drug Y 175 mg Witepsol H15 q.s. Supply 6 suppositories (using 3 g nominal moulds) When using Witepsol H15, moulds will hold 1.06 times their nominal weight. The displacement value of Drug Y in Witepsol H15 is 1.1. Calculate the mass of Witepsol H15 required to prepare this product. Give your answer to two decimal places.A solution contains 0.25 M Ni(NO3)2 and 0.25 M Cu(NO3)2. A. Can the metal ions be separated by slowly adding Na2CO3 aq solution? Assume that for successful separation 99% of the metal ion must be precipitated before the other metal ion begins to precipitate, and assume no volume change on addition of Na2CO3 solution. Ksp of CuCO3 = 1.4 x10-10 Ksp of NiCO3 = 1.42X 10-7 B. If you need to redissolve the salt that was first precipitated, what pH will you use and why ? Write your answers in template provided. Upload your step by step solution for A.Use the following balanced equation for problems 1-5. Molar masses are given below. 2 AsH3 150. kcal + 2 As 3 H2 + molar masses 74.92 g 2.02 g 77.95 g How many grams of AsH3 can be made from 22.22 g of As? A. 46.24 g В. 23.12 g C. 21.36 g D. 11.56 g
- The Ksp values of silver chromate Ag2CrO4 and silver iodate Ag(IO3) are given below. Ag2CrO4 Ag(IO3) Ksp 1.12 x 10-12 3.17 x 10-8 Based on these Ksp values, which of the following is true? Choose one option only. Options: a. In the solution consisting of 1.00 x10-4 M Ag+ and 5.00 x10-5 M CrO42-, Ag2CrO4 precipitate will form. b. In the solution consisting of 1.0 x10-4 M Ag+ and 1.0 x10-4 M IO3-, Ag(IO3) precipitate will form. c. In pure water, the solubility of Ag2CrO4 is lower than the solubility of Ag(IO3). d. In the solution consisting of 0.200 M CrO42- and 0.200 M IO3-, Ag2(CrO4) will precipitate first if we add Ag+ ions gradually into the above mixture.You just made a 1.5M permanganate solution. What concentration is your potassium permanganate solution in percent? "K: 39.10 g/mole" "Mn: 54.94 g/mole" "O: 16 g/mole" "MW of KMnO4 is 158.04 g/mole" O a. 0.24% Ob. 20.1% O c. 15.8% O d. 23.7% O e. 2%How much magnesium chloride hexahydrate (MW = 203.3 g/mol) is required to make a 500 mL solution at a concentration of 10 mmol/L? 203.30 mg O1.017 g O 1016.50 g 10.17 g 2.033 g
- 8 7- 6- 2- 1 405 180 225 270 315 [Substrate] (nM) 45 90 135 360 450 495 540 58! What are the units of Km from the plot shown above? nanometers O nM sec/nM O not enough information to tell O nM/sec rate (nM/sec) 3.What we know : Molar mass of Alliin= 177.25g/mol 1 clove of garlic = 18oz assume alliin takes up 10% ( by mass) of the garlic used in the recipe ( 1.25 cloves) how many moles of Alliin are you using please show all work and equations/ conversionsDetermine the mass of baking soda (84 g/mol) needed to completely react with 531mL of vinegar. Assume vinegar is 5% (m/m) acetic acid (60 g/mol) and the density of vinegar is 1.05 g/mL. O 38 g O 37 g O 40 g O 39 g 35 g O 36 g
- The vapor pressure of component C is 272 torr, and that of component E is 176 torr at 35°C. The C-E solution at 35C with x=0.200 has a vapor pressure of 904.2 torr and vapor composition of x=0.272. 1. Calculate y, for C 2.15 and for E 4.99 : in this solution. 2. Calculate a, for C 2.42 and for E 2.678 in this solution. 3. Calculate p,-p, for component C 2264.38 : (J/mol) and E 857.32 : (J/mol). 4. Calculate AmyG= -1092.22 : (J) for the corresponding ideal solution.It required 66.66 mL of 2.000 M HBRO3 to titrate (neutralize) 50.00 mL of an Al(OH)3 solution. What is the molarity, M, of the aluminum hydroxide solution ? 3 HBRO3 + Al(OH)3 З Н-0 + Al(BrOз)з Answer a few questions before giving the final answer in the last problem. How many moles of Al(OH)3 are required to neutralize the acid ? A. 0.3999 mol B. 0.1333 mol C. 0.09998 mol D. 0.04444 molPrepare 1.5L 2X Base stock in a media bottle: Fill out the last column of this table: Component MgCl.6H20 (NH4)2SO4 H3PO4 (85%) КСІ EDTA 1X concentration 0.52 g/L 12 g/L 1.6 mL/L 0.12 g/L 0.1 g/L 2X (Provide unit)