Name: Lab 5 Prelab Questions Stoichiometry Instructions: Conplete the following questions and hand in at the start of your lab period or when instructed by your instructor. Show your work with units and correct significant figures for all questions that involve a calculation. 1. Calculate the molecular weights of all the compounds in the reaction we are doing in this lab (and copy them onto your procedure.. they will be helpful): a NaCO3 d. H2O b. HCI e. CO2 NaCI

Name: Lab 5 Prelab Questions Stoichiometry Instructions: Conplete the following questions and hand in at the start of your lab period or when instructed by your instructor. Show your work with units and correct significant figures for all questions that involve a calculation. 1. Calculate the molecular weights of all the compounds in the reaction we are doing in this lab (and copy them onto your procedure.. they will be helpful): a NaCO3 d. H2O b. HCI e. CO2 NaCI

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Additional Activities (PERFORMANCE TASK #3) Directions: Write the balanced chemical equation and solve each of the following. Do this activity in your notebook. 1. Aluminum metal (Al) and hydrogen chloride (HCI) react to form aluminum chloride (AICI3) and hydrogen gas (H2). A. What is the balanced chemical equation? B. How many moles of aluminum metal are needed to produce 4 moles of aluminum chloride? C. How many moles of hydrogen chloride are needed to react with this number of moles of aluminum metal?
44 080 #5 on page 32: 1N, + 3H, --> 2NH3 If I use 8 moles of hydrogen gas, how many grams of nitrogen gas must have reacted? Show your work and box your final answer with 3 sig figs. Type here to search F9 F10 F5 F6 F7 F8 F1 F2 F3 & 6. 7
A way of generating dry O2 in the lab is to heat potassium chlorate. If you determined that 25 grams of O2 are needed, how much potassium chlorate do you need to start with? 2 KCIO3 → 2KC1 + 302 Heat 96 grams 64 grams 17 grams 25 grams 128 grams
plz write out answer like the 2nd photo or similar to it
P2
7. A student reacted 3.05 grams of K2Cr2O7 with 11.2 grams of oxalic acid and 3.82 grams of potassium oxalate. All contain waters of hydration as indicated by the formulas in the lab. Calculate the theoretical yield of product, in moles. 142 EXPERIMENT 12
DIRECTIONS: Solve the stoichiometric questions based on this equation 4NH₃ + 5O₂ ? 6H₂O + 4NO. Show your solution 11-14 How many moles of H₂O can be made using 2.00 mol of NH₃? Show your solution at the back of this paper.15-18. What mass of NH₃ is needed to make 2.00 mol of NO? Show your solution.19-22. How many grams of NO can be made from 30 g of NH₃?Show your solution.
Esc STARTING AMOUNT 71°F Sunny Z²² F1 DX X F2 A- F3 F4 According to the balanced reaction below, calculate the quantity of moles of NH, gas that form when 4.20 mol of N₂H4 liquid completely reacts: 4.20 5.60 ▬▬ *- ADD FACTOR x( ) F5 17.04 1.40 g N₂ *+ O Search the web F6 3.15 3.37 x 1024 mol N₂H₁ 3 N₂H.(1)→ 4 NH.(g) + N2(g) ► / || F7 Question 9 of 11 2.53 x 1024 32.06 4 g NH, F8 12.6 g N₂H4 28.02 ANSWER 1.05 4 pity mol NH, F9 1 6.022 x 1023 8.43 x 102 3 * RESET mol N₂ 2 16.8 F10 Insert F11 F12 Delete
13) Organic chemistry subject, please provide the correct solution for the following.
Start at F and work your way down to home please:)
2. __H2 + __O2 --> __H2O, What are the coefficients to be used to balance the equation? A. 2,2,2 B. 0,2,2 C. 2,1,2 D .2,0,2
In the PHET simulation, click on the Game icon at the bottom of the screen. Balance the given chemical equations by changing the coefficients placed before each compound and then clicking Check. When a reaction is balanced correctly a yellow face will appear with a smile. After practicing with the game, balance the given chemical equations without use of the simulation. Drag the appropriate labels to their respective targets. Leave the target empty for a coefficient of 1. > View Available Hint(s) Reset Help 3 H,C,0. NaOH Na,C,0, H,0 5 Fe, 0, Fe CO 7