2. Consider the reaction: A + B C+ 3D A solution was prepared by mixing 50.00 mL of 1.00 x 10 M A, 100 mL of 2.00 x 10 M B, 10.0 mL of 1.0 MC and 75 mL of 1.50 x 10 M D. At equilibrium, the concentration of D was measured to be 6.0 x 10 M. a) Calculate the equilibrium concentrations of each species I b) Calculate the equilibrium constant.
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- . A solution was prepared by mixing 4.00mL of 2.00 x 10-3 M Fe(NO3)3 and 3.00mL of 5.00 x 10-3 M NaSCN and diluting the mixture with water to a total of 10.00mL. Use your average value of Kc to calculate the equilibrium concentration of FeSCN2+ in the mixture. [Hint: Use as many significant figures as you legitimately can in your calculations] my average you can find on the picture below PLS HELP ASAP!!A first-stage recovery of magnesium from seawater is precipitationof Mg1OH22 with CaO:Mg2+(aq) + CaO(s) + H2O(l)---->Mg(OH)2(s) + Ca2+(aq) What mass of CaO, in grams, is needed to precipitate 1000lb of Mg(OH)2?Organic carbon in seawater can be measured by oxidation to CO2 with K2S2O8, followed by gravimetric determina- tion of CO2 trapped by a column of Ascarite. Water weighing 6.234 g produced 2.378 mg of CO2 (FM 44.010). Find ppm carbon in the seawater.
- Airbag experiment The simulation link is provided below if needed. It's probably best to use the simulation because the pictures attached won't show everything in full. Simulation link: https://interactives.ck12.org/simulations/chemistry/decomposition-reaction/app/index.html?screen=sandbox&lang=en&referrer=ck12Launcher&backUrl=https://interactives.ck12.org/simulations/chemistry.html Just select ammonium nitrate and then select 2 moles and press play. Record macroscopic observations of the bag and the crash test dummy as well as microscopic observations of the particles within the steering mechanism and the inflated/inflating airbag.Airbag experiment The simulation link is provided below if needed. It's probably best to use the simulation because the pictures attached won't show everything in full. Simulation link: https://interactives.ck12.org/simulations/chemistry/decomposition-reaction/app/index.html?screen=sandbox&lang=en&referrer=ck12Launcher&backUrl=https://interactives.ck12.org/simulations/chemistry.html Just select ammonium nitrate and then select 1 mole and press play. Record macroscopic observations of the bag and the crash test dummy as well as microscopic observations of the particles within the steering mechanism and the inflated/inflating airbag.Potassium dichromate has several industrial applications. To determine the purity of the salt that will be used in different industrial processes, a sample mass equal to 2.660 g was dissolved and quantitatively transferred to a 500.00 mL flask. An aliquot of 25.00 mL of this solution was treated with excess KI and the released iodine was titrated with 0.1000 mol L-1 sodium thiosulfate, spending 27.00 mL. Calculate the purity of the analyzed salt. Data:K = 39.10 O = 16.00 Cr = 52.00 I = 126.9 S = 32.07
- 100 g of soil is leached with a strong solution of Calcium chloride such that all the exchange sites are occupied by Ca2+. The soil is subsequently leached again with a strong solution of magnesium chloride. It is determined that the resulting 100 mL leachate contains 5000 mg of Ca2+. What is the soil CEC (cmolc/kg)? The atomic wt. of Ca is 40 g/mol.please answer in word don't image upload thank you.Solution must be in typed form No image is allowed Pls do fast ...its urgent.. I will give like for sureTo a 0.5 g sample of impure NaCl are added 0.784 g of pure AgNO3 (MW = 169.88) crystal. This is in excess of the amount required to ppt. All the Cl as AgCl. After dissolving and filtering out the pptd. AgCl, the filtrate requires 25.50 ml of 0.028M KCNS. What is the percentage of NaCl (MW=58.44) in the sample? A. 55.40 % B. 50.10% C. 45.60% D. 100%
- Give typed answer not written You send a sample of rice to the lab for the determination of the total arsenic content. The analyst dissolves 525 mg of the rice in 5.0 mL of concentrated acid and then dilutes the solution to a final volume of 20.0 mL. When analyzed by ICP-MS, the solution concentration is found to be 20 µg L-1. What is the concentration of arsenic in the rice (in µg kg-1)?If all other variables were kept constant, determine theeffect that the following errors would have on the calculatedpercent yield of the product. Would the yield be expected toincrease, decrease, or would there be no effect? Explainyour reasoning.– The product was insufficiently dried before weighing.– Some of the product was lost during the transfer fromthe Buchner funnel to the evaporating dish.– 7.5 mL of FeCl3 was added instead of 3.0 mL asoutlined in the procedure.– 4.587g of K2C2O4H2O was used instead of exactly4.000g .– The recrystallization step was skipped and theexperiment went straight to vacuum filtration.Organic carbon in seawater can be measured by oxidation to CO2 with K2S2O8, followed by gravimetric determination of CO2 trapped by a column of Ascarite. Water weighing 6.234 g produced 2.378 mg of CO2 (FM 44.010). Find ppm carbon in the seawater.