X 101 Chem 101 bAnswered: Write a balanced X G how many kilograms are in X (71) Tyler DeWitt - YouTube (71) Converting Between Gr G how many grams are in a lit X X x app.101edu.co Submit Question 1 of 47 Balance the following chemical equation (if necessary): - Pb(SO4)2(s) H2O(I) H2SO4(aq)Pb(OH)(s) 3 4- |2+ |3+ |4+ 1 2 5 6 7 8 9 0 19 17 2 4 6 (s) (g) (aq) (1) PbSO4 H2SO4 Н.О РЫ(ОН). Reset Delete x H20 10:43 PM е OTYPE here to search 10/31/2019 LO 3

Stock iron(II) solution (200Ug mL-1 Fe) ferrous ammonium sulfate hexahydrate mass= 0.1437g, transfer it to a 100 ml beaker. add 15 ml approx of water and 15m1 'approx of dilute sulphuric acid (2M H2SO.). then transfer FeII to 100 ml flask makeup to the mark with water. calculate the moles of ferrous ammonium sulfate hexahydrate solution in unit ug/mL.

Cocaine(C17H21O4N) is a natural substance found in the leaves of the coca plant, which has been used for centuries as a local anesthetic and stimulant. Illegal cocaine arrives in the USA either as a pure compound or as the hydrochloride salt(C7H21O4NHCl). At 25 degrees celsius, the salt is very soluble in water(2.59kg/L), but pure cocaine is much less so(1.70g/L) a. What is the maximum amount of salt in grams that can dissolve in 50.0mL of water? b. When a 25mL aqueous solution that contains 62.50 g of the salt is treated with NaOH, the salt is converted to pure cocaine. How much water in liters is needed additionally to dissolve the formed pure cocaine,

As part of the aspirin synthesis lab the orgo students also had to perform the following calculation to demonstrate their knowledge. Are you able to help them work this out? Saponification is a process in which soap is produced from the chemical reaction between animal fat (triglycerides) and a strong base such as KOH. An example of such balanced chemical reaction is shown here: C51H98O6 +   3KOH   → C3H5(OH)3   +   3C16H31O2K                           (Triglyceride)                                                      (Soap) if during the saponification reaction 231.5 g of C51H98O6  is mixed with 231.5 g of KOH and 160 g of soap is produced. Calculate the theoretical yield of soap C16H31O2K and indicate who is the limiting reactant. (Provide your answer to 2 decimal places) Calculate the percent yield for this reaction (Provide your answer to 1 decimal place)   *Show ALL steps and mathematical equations involved in your calculations to help the orgo students. Remember to label all…

Souring of wine occurs when ethanol is converted to acetic acid by oxygen: C2H5OH(l) +O2(g)--->CH3COOH(g)+H2O(l). A 1.00 L bottle of wine labeled as 7.00% (%v/v) ethanol, is found to have a defective seal. Analysis of 1.00 mL showed that there were 0.0274 g acetic acid in that 1.00 mL. The density of ethanol is 0.816 g/mL. (a) What mass of oxygen must leaked into the bottle in pounds(lb)  (b) What is the percent yield for the conversion of ethanol to acetic acid, if oxygen is in excess

2 CoCl2(aq) + 8 NH3(aq) + H2O2(aq) + 2 NH4Cl(aq)  2 [Co(NH3)5Cl]Cl2(s) + 2 H2O(l) In a 50-mL Erlenmeyer flask, cobalt(II) chloride hexahydrate (1.075 g), an aqueous solution of ammonia (1.2 mL, 15 M), ammonium chloride (0.505 g), and hydrogen peroxide (1.0 mL, 30.0% (w/w), density = 1.10 g/mL) were combined. After completion of the reaction, [Co(NH3)5Cl]Cl2 (0.450 g) was isolated. What was the percent yield of the product?

3. Molly Cule weighed 8.61g of her hydrate (which is CaSO4*2H2O). After she did her hydrates lab, she found that her anhydrate weighed 6.81g. A) If Molly has not completely dried her samples before weighing her anhydrate, how would her final calculations of mole ratio of water to anhydrate be affected? B) How many moles of water were lost during the lab due to evaporation?

Sodium carbonate is a reagent that may be used to standardize acids. In such a standardization it was found that a 0.498-g sample of sodium carbonate required   22.6 mLmL   mL of a sulfuric acid solution to reach the end point for the reaction.  Na2CO3(aq)+H2SO4(aq)→H2O(l)+CO2(g)+Na2SO4(aq)Na2CO3(aq)+H2SO4(aq)→H2O(l)+CO2(g)+Na2SO4(aq)  What is the molarity of the H2SO4H2SO4?

A concentration of carbon monoxide of 4000  ppm  (0.400 %  by mass) in air is lethal in about half an hour. What mass in grams of carbon monoxide in a car with an internal volume of 2.9  m3  is sufficient to provide that concentration? Assume the density of air is 1.29  g/L ;  1m3=1000L.

What mass in grams of Na2S2O3 is needed to dissolve 6.3 g of AgBr in a 1.0 L solution if Ksp for AgBr is 3.3×10−13 and Kf for [Ag(S2O3)2]3− is 4.7×1013? Report your answer with the correct number of significant figures.