Conservation+of+Mass+Lab+Worksheet

Use the information below to answer questions 1- 3. PCI,(g) 2 PCI;(g) + Cl2(8) PCI,(g) decomposes into PCI,(g) and Cl,(8) according to the equation above. A pure sample of PCI,(g) is placed in a rigid, evacuated 1.00 L container. The initial pressure of the PCI5(g) is 1.00 atm. The temperature is held constant until the PCI,(g) reaches equilibrium with its decomposition products. The figures below show the initial and equilibrium conditions of the system. PCI5 Potal = 1.00 atm PCI5, PCI3, and CI, Prstal = 1.40 atm Figure 1: Initial Figure 2: Equilibrium As the reaction progresses toward equilibrium, the rate of the forward reaction (A) increases until it becomes the same as the reverse reaction rate at equilibrium (B) stays constant before and after equilibrium is reached (C) decreases to become a constant nonzero rate at equilibrium (D) decreases to become zero at equilibrium If the decomposition reaction were to go to completion, the total pressure in the container would be (A) 1.4…

Part C A solid mixture consists of 32.3 g of KNO3 (potassium nitrate) and 5.7 g of K2SO4 (potassium sulfate). The mixture is added to 130. g of water. If the solution described in the introduction is cooled to 0 °C what mass of K2SO4 will crystallize? Use this solubility curve (Figure 1) to answer the questions. Enter your answer numerically in grams. • View Available Hint(s) Nνα ΑΣφ ? Figure Submit

What is the volume of 1.80 M NaCl solution that can be prepared by the dilution of a 50.0 mL of brine solution containing 32.0 wt% NaCl? (Assume the density of a brine solution is 1.10 g/mL and formula mass of NaCl=58.4 g/mol) a. 6.03 mL b. 167 mL C. 301 mL d. 438 mL

Here is a graph of the molarity of acetonitrile (CH3CN) in a reaction vessel during a certain chemical reaction. Use this graph to answer the questions in the table below. 0.030- 0.025- 0.0215 0.020- y M 0.015. 0.010- 0.005 0 5 10 15 20 25 30 seconds Is CH3CN being created or destroyed by the chemical reaction? If CH3CN is being created or destroyed, what is the rate at which it is being created or destroyed 8 seconds after the reaction starts? Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol. If CH3CN is being created or destroyed, what is the average rate at which it is being created or destroyed during the first 8 seconds of the reaction? Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol. X O created O destroyed neither created nor destroyed ☐ ☐ 1 ×10 □·□ olo 0 [

If you dissolve 20.000 g of KSCN(s) in a 250.00 mL volumetric flask, and fill the flask exactly to the mark, what is the concentration of KSCN you have prepared? a. 8.2321 x 103M b. 0.82321 M C. 0.80000 m d. 0.82321 m e. 0.08000 M

I need help calculating the following values.  EXPERIMENTAL DATA Recall the data table provided in your lab manual, shown below. Sample HIn (mL) 1.10 M Acetic Acid (mL) 0.90 M Sodium Acetate (mL) 1 10.00 8.00 2.00 2 10.00 7.00 3.00 3 10.00 6.00 4.00 4 10.00 5.00 5.00 5 10.00 4.00 6.00 6 10.00 3.00 7.00 7 10.00 2.00 8.00 8 10.00 1.00 9.00 9 10.00 10.00 mL NaOH (0.10 M) 10 10.00 10.00 mL HCl (0.10 M)

A solid mixture consists of 25.5 g of KNO3 (potassium nitrate) and 4.5 g of K₂SO4 (potassium sulfate). The mixture is added to 130. g of water. Use this solubility curve (Figure 1) to answer the questions. Part B If the solution described in the introduction is cooled to 0 °C, what mass of KNO3 should crystallize? Enter your answer numerically in grams. View Available Hint(s) 15| ΑΣΦ ?

Please help ASAP, thank you! "Calculate the mass of diethyl ether (in grams) given the values listed in the reaction scheme. Keep your answer to 2 decimal places."

Use the solubility graph to answer the following question. If 45 g of potassium nitrate is placed in 100 ml of water at 40 °C, how much salt would have to be added or removed in order to saturate the solution? Solubility Curves Solubility (g/L of solvent) 10 g 158 25 B 30 g 20 g 1400 1300 1200 1100 1000 900 800 700 600 500 400 300 200 KI -HCI SO₂ NaNO₂ -KNO3 NHẠC KCI -KCIO3 NaCl NH₂ 100 0 0 10 20 30 40 50 60 70 80 90 100 Temperature (°C)

A pair of students were mixing aqueous chemical solutions in a the Classes of Chemical Reactions lab experiment. They labeled their test tubes A, B and C. Which of the test tubes showed a reaction? A B All three test tubes reacted. Test tube B reacted. Test tube C reacted. Test tubes A and B reacted. Test tube A reacted

A student makes a standard solution of potassium hydroxide by adding 14.555 g to 500.0 mL of water. Answer the following questions, being sure to include units and remember sig figs. Include a picture of your work at the end of this worksheet. What is the concentration of this standard solution? If the student pours out a 15.6 mL sample of this solution, how many moles of potassium hydroxide does the student have in the sample?

Pls help ASAP ON ALL ASKED QUESTIONS PLS PLS

Moquie $0 219 OWLV2 keAssignment/takeCovalentActivity.do?locator-assignment-take In the following equation for a chemical reaction, the notation (s), (I), or (g) indicates whether the substance indicated is in the solid, liquid, or gaseous state. 2SO₂(g) + O₂(g) →→→2SO3(g) + energy The reaction is Q Search Identify each of the following as a product or a reactant: SO3(g) SO₂(g) 0₂(g) When the reaction takes place energy is Submit Answer 7 L M te OWLv2 | Online teaching and X * Use the References to access important values if needed for this question. Retry Entire Group K CO 144 www.yo up 8 more group attempts remaining L 11 b Answered: For the reaction 2 x + 111 P g P¹ ins prt sc. delete Previous backspace ^ GG 4 home GURN lock 7 home A 6:52 PM 5/14/2023 74 X In

Given the following reactants, write the possible products and determine if the reaction will occur. Provide an explanation for your answer. Include which products are insoluble and which are soluble. Ca(NO3)2 + NaCl * Student can enter max 3000 characters AGBIU FEQ X5 Q+ F5 F6 Use the paperclip button below to attach files. Search .F7 - F8 + F9 TE F10 ¢ 0 9 28 F11 W F12 Prt Sc

*** this is not a graded assignment, I am double checking my answer key please. A vessel of calcium chloride solution (CaCl2) (2 Ca ions and 4 Cl ions represent a .1 M solution)  is mixed with  potassium carbonate (K2CO3) which should be drawn as .2M .Draw the reactant with the appropriate amount of K2CO3 particles in an empty box. The product calcium carbonate (CaCO3) forms a precipitate. Draw the appropriate example of the precipitate and the ions that remain in the solution. Add two water molecules around each ion in the solution.

10. Concentrated nitric acid, HNO3(aq), has a concentration of 15.7 M. What volume of concentrated nitric acid miust be diluted to make 275 mL of 0.130 M nitric acid solution? Multiple Choice 0.828 mL 15.7 mL 2.28 mL 8.28 mL 0.228 mL

What series of steps are required for this conversion