5. Now, BUILD as many MgCl2 molecules as possible, using ONLY the Mg atoms that you...
5. Now, BUILD as many MgCl2 molecules as possible, using ONLY the Mg atoms that you weighed out in Step 4. (If you weighed 9 Mg atoms in Step 4, you can build 9 MgCl2 molecules.) Weigh the MgCl2 molecules and record the mass. Your predicted mass of MgCl2 should agree with the actual mass of MgCl2 within a few tenths of a gram.
Actual mass of MgCl2 molecules from 5 grams Mg ____________________ g
Homework Answers
Actual mass of MgCl2 molecules from 5 grams of Mg is calculated as follows
Add Answer to:
5. Now, BUILD as many MgCl2 molecules as possible, using ONLY
the Mg atoms that you...
1 doz Mg 4B89Mg x-ㄧㄧ 2502 g ㄨ ㄧ 550gMq 1 doa Mg Step 2) Predicted...
1 doz Mg 4B89Mg x-ㄧㄧ 2502 g ㄨ ㄧ 550gMq 1 doa Mg Step 2) Predicted Your calculation Predicted mass of MgCia as possibile, using ONLY the Mg atoms that you weighed out in Step 4 (if you weighed 9 you can build 9 MgCle molecules.) Weigh the MgCih molecaules and record the mass. Your predicted mass 5. Now, BUILD as many MgClh molscuies Mg atoms in Stop 4, of MgClh should agree with the actual mass ot MgClg within...
4. Find the mass, in grams, of 4.21 x 1023 molecules of N2 5. How many...
4. Find the mass, in grams, of 4.21 x 1023 molecules of N2 5. How many particles are there in 2.34 g of a molecular compound with a gram molecular mass of 233 g? T2 6. Aspartame is an artificial sweetener that is 160 times sweeter than sucrose (table sugar) when iissolved in water. It is marketed by G.D. Searle as Nutra Sweet. The molecular formula of aspartame is C14H18N205 a) Calculate the gram-formula-mass of aspartame. To ed b) How...
Chemical Quantities and Chemical Composition 1. How many atoms are in 15 moles of sodium? 2....
Chemical Quantities and Chemical Composition 1. How many atoms are in 15 moles of sodium? 2. How many moles are in 2.1 x 10^22 molecules of H2SO4? 3. How many atoms are in 7.22 moles of gold? 4. How many atoms are in 90.43 of Xenon? 5. How many grams do 1.96 x 10^24 atoms of sodium weight? 6. Calculate the molar mass of AgNO3. 7. Calculate the molar mass of Fe2O3. 8. Calculate the molar mass of CaCO3 9....
Please answer questions 1-7 and fill out the equation at the top. Thanks! LAB-Stoichiometry/Empirical formula Name...
Please answer questions 1-7 and fill out the equation at the
top. Thanks!
LAB-Stoichiometry/Empirical formula Name Purpose: To predict the mass of magnesium oxide (MgO) formed by reacting To determine actual yield, theoretical yield and percent yield of pro Balance the equation: Moterials: Mg ribbon, Bunsen burner, balance, crucible tongs, crucible w/id etc- Procedure: place a check after you perform each step 1Go to the scale, check for zero. Record the mass of the crucible +lid and d it below...
2. How many mL of 0.100M NaOH would you need to titrate if you measured out...
2. How many mL of 0.100M NaOH would you need to titrate if you measured out 0.120 g of oxalic acid? Must show calculation. (5 pts) lying an unknown acid Objective: Identify an unknown diprotic acid by determining its molecular weight. Introduction: A diprotic acid is an acid that yields two H ions per acid molecule. Therefore, two moles of NaOH are need to react with every one mole of diprotic acid. The net reaction of a diprotic acid, H:X,...
1.00 M HCL t2 = 60.06 °C t1 = 21.62 °C Mass Mg = .500 g...
1.00 M HCL
t2 = 60.06 °C t1 = 21.62 °C Mass Mg = .500 g For reaction 1: MgO(s) + 2 HCl(aq) ----> MgCl2(aq) + H20(1). 1.6 Enter q (in kJ). 1.74 kJ Computer's answer now shown above. You are correct. Previous Tries Your receipt no. is 158-3788 ? 1.7 Enter AH (in kJ). -1.74 kJ Computer's answer now shown above. You are correct. Previous Tries Your receipt no. is 158-1858 ? 1.8 Enter the number of moles of...
please complete the questions has not answering with clarification of the answer to any page Name...
please complete the questions has not answering with
clarification of the answer to any page
Name Lab Section _Date The Mole Concept and Atomic Weights The purpose of this activity is to better understand the concepts of relative atomic mass, counting by weighing and the mole. Percent composition and average atomic mass are included. Part I. Relative Atomic Masses and the Mole - Early Method When John Dalton proposed his atomic theory, he stated that the atoms of each element...
1. How many atoms are represented by: a. 0.96 moles Ca b. 0.39 moles Ga c....
1. How many atoms are represented by: a. 0.96 moles Ca b. 0.39 moles Ga c. 0.94 moles Ag d. 0.39 moles Mg 2. How may molecules are represented by a. 0.39 moles CH3COOH b. 0.71 moles N2 C. 0.72 moles C&H 206 d. 0.57 moles 02 3. How may grams are represented by: a. 6.11 moles C6H1206 b. 1.89 moles 02 c. 6,61 moles NaHCO3 d. 1.14 moles Na 4. How may moles are represented by: a. 26.32 grams...
Dittusion of Molecules In this exercise you will investigate characteristics of molecules that facilitate diffusion, factors...
Dittusion of Molecules In this exercise you will investigate characteristics of molecules that facilitate diffusion, factors that influence diffusion rates, and diffusion of solutes through a selectively permeable membrane. Experiment A. Kinetic Energy of Molecules Materials dropper bottle of water slide and coverslip carmine powder (KM,04 compound microscope dissecting needle assim perman Introduction Molecules of a liquid or gas are constantly in motion because of the intrinsic kinetic energy in all atoms and molecules. In 1827, Robert Brown, a Scottish...
the 3 pages deal with limiting reactant and percentage yield. the mixture starts out as a...
the 3 pages deal with limiting reactant and percentage yield.
the mixture starts out as a bright blue and when spinning in the
cup smokes ans starts to tirn a black color and the end result is a
brown color. then the funnel part was a light blue color.
1. Weigh approximately 7.0 g of CuCl2 and place them in the 100 ml beaker. Record the exact mass in the data table below. Note the appearance of the CuCl2 crystals...
1 doz Mg 4B89Mg x-ㄧㄧ 2502 g ㄨ ㄧ 550gMq 1 doa Mg Step 2) Predicted Your calculation Predicted mass of MgCia as possibile, using ONLY the Mg atoms that you weighed out in Step 4 (if you weighed 9 you can build 9 MgCle molecules.) Weigh the MgCih molecaules and record the mass. Your predicted mass 5. Now, BUILD as many MgClh molscuies Mg atoms in Stop 4, of MgClh should agree with the actual mass ot MgClg within...
4. Find the mass, in grams, of 4.21 x 1023 molecules of N2 5. How many particles are there in 2.34 g of a molecular compound with a gram molecular mass of 233 g? T2 6. Aspartame is an artificial sweetener that is 160 times sweeter than sucrose (table sugar) when iissolved in water. It is marketed by G.D. Searle as Nutra Sweet. The molecular formula of aspartame is C14H18N205 a) Calculate the gram-formula-mass of aspartame. To ed b) How...
Please answer questions 1-7 and fill out the equation at the
top. Thanks!
LAB-Stoichiometry/Empirical formula Name Purpose: To predict the mass of magnesium oxide (MgO) formed by reacting To determine actual yield, theoretical yield and percent yield of pro Balance the equation: Moterials: Mg ribbon, Bunsen burner, balance, crucible tongs, crucible w/id etc- Procedure: place a check after you perform each step 1Go to the scale, check for zero. Record the mass of the crucible +lid and d it below...
2. How many mL of 0.100M NaOH would you need to titrate if you measured out 0.120 g of oxalic acid? Must show calculation. (5 pts) lying an unknown acid Objective: Identify an unknown diprotic acid by determining its molecular weight. Introduction: A diprotic acid is an acid that yields two H ions per acid molecule. Therefore, two moles of NaOH are need to react with every one mole of diprotic acid. The net reaction of a diprotic acid, H:X,...
1.00 M HCL
t2 = 60.06 °C t1 = 21.62 °C Mass Mg = .500 g For reaction 1: MgO(s) + 2 HCl(aq) ----> MgCl2(aq) + H20(1). 1.6 Enter q (in kJ). 1.74 kJ Computer's answer now shown above. You are correct. Previous Tries Your receipt no. is 158-3788 ? 1.7 Enter AH (in kJ). -1.74 kJ Computer's answer now shown above. You are correct. Previous Tries Your receipt no. is 158-1858 ? 1.8 Enter the number of moles of...
please complete the questions has not answering with
clarification of the answer to any page
Name Lab Section _Date The Mole Concept and Atomic Weights The purpose of this activity is to better understand the concepts of relative atomic mass, counting by weighing and the mole. Percent composition and average atomic mass are included. Part I. Relative Atomic Masses and the Mole - Early Method When John Dalton proposed his atomic theory, he stated that the atoms of each element...
1. How many atoms are represented by: a. 0.96 moles Ca b. 0.39 moles Ga c. 0.94 moles Ag d. 0.39 moles Mg 2. How may molecules are represented by a. 0.39 moles CH3COOH b. 0.71 moles N2 C. 0.72 moles C&H 206 d. 0.57 moles 02 3. How may grams are represented by: a. 6.11 moles C6H1206 b. 1.89 moles 02 c. 6,61 moles NaHCO3 d. 1.14 moles Na 4. How may moles are represented by: a. 26.32 grams...
Dittusion of Molecules In this exercise you will investigate characteristics of molecules that facilitate diffusion, factors that influence diffusion rates, and diffusion of solutes through a selectively permeable membrane. Experiment A. Kinetic Energy of Molecules Materials dropper bottle of water slide and coverslip carmine powder (KM,04 compound microscope dissecting needle assim perman Introduction Molecules of a liquid or gas are constantly in motion because of the intrinsic kinetic energy in all atoms and molecules. In 1827, Robert Brown, a Scottish...
the 3 pages deal with limiting reactant and percentage yield.
the mixture starts out as a bright blue and when spinning in the
cup smokes ans starts to tirn a black color and the end result is a
brown color. then the funnel part was a light blue color.
1. Weigh approximately 7.0 g of CuCl2 and place them in the 100 ml beaker. Record the exact mass in the data table below. Note the appearance of the CuCl2 crystals...
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