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If 0.128 moles of CaFz vere reacted in excess sulfuric acid, anysver the questions below. Complete...
If 5.000 moles of calcium carbonate vere reacted in excess hydrochloric acid, complete the table by filling in the blanks then anvsver the questions belov Ca = 40.0 amu, H = 1.00 amu, C = 12.01 amu, CI = 35.45 amu, 0 - 16.00 amu grans A. B. c. D. E. 1CaCO3(s) + nolar mass (grams) A. B c. D. E (mole) molos A. 5.00 moles B C D E 2HC1 (9) 1C02(9) + 1H20 (1) + 1CaCl2ca0 1. Identify...
If 51.75 grams of magnesium metal reacted in excess acid, (match the following questions to the correct responses) a) how many grams of hydrogen gas are produced? b) how many grams of acid actually reacted? NOTE: EE = E = EXP = 10x = 10^ Group of answer choices 1. correct formula for magnesium chloride [ Choose ] 1.07EE00 moles 155 grams MgCl2 2 Mg(s) and 1...
If 58 moles of NH3 are combined with 32 moles of sulfuric acid, what is the limiting reactant and how much of the excess reactant is left over? 2 NH3 + H2SO4 (NH4)2SO4 A) H2SO4, 29 mol B) NH3, 1.0 mol C) NH3 29 mol D) NH3, 3.0 mol E) H2SO4, 3.0 mol
2. Complete the following calculations: a. How many atoms are in 0.932 moles of copper? b. How many moles of water are in 9.028 x 1022 water molecules? C. What is the molar mass of calcium carbonate? d. How many grams of water are in a 1.02 mole sample of water? e. How many moles of methane are there in 278 g of methane?
1 21-25. Determine how many moles of each of the following compounds will react with 1 mole of Mg(OH)2. Starting materials Products 21. Be(OH)2 A) 1 mole 22. HNO3 B) 2 moles 23. H2C204 C) 0.5 moles 24 H2SO4 D) 0.67 moles 25. H3PO4 E) O moles = no reaction
Homework #7A Name: Due date: 3-16-20 1. How many moles of water, H20, contain 9.03 * 10molecules of water? 2. How many molecules are present in 4.9 moles of L,CO3. 3. How many moles of oxygen are present in 4.9 moles of L.COM 4. How many Li atoms are in 4.5 moles of Li? 5. Calculate the mass, in grams, for 3.75 10 molecules of C2Hs. 6. Calculate the mass, in grams, for 3.5 moles of CHO. 7. Calculate the...
16. How many grams of steam and iron must react to produce 375 g of magnetic iron oxide, Fe3O4? 3 Fe(s) + 4 H2O(g) Fe3O4(s) + 4 H2(g) 18. Mercury can be isolated from its ore by the reaction 4 HgS + 4 CaO → 4 Hg + 3 CaS + CaSO4 (a) How many moles of CaS are produced from 2.5 mol CaO? (b) How many grams of Hg are produced along with 9.75 mol of CaSO4? (c) How many...
b) 100 cal (1 point) a) 50 cal 4) Calculate how many grams are contained in 1.75 moles of MgCl2 (Show the mathematical calculations) ) 70.909 (1 point) Circle one: a) 59.755 9 b) 166.6 g c) 35.459 d) 95.21g e 5) How many moles are in 80.0 g of Sodium Hydroxide NaOH?! (Show the mathematical calculations and circle the correct answer below) d) 2.0 moles c) 40.0 moles b) 0.50 mole Circle one: a) 24.3 moles
12. Molarity, M, is defined as A. moles of solute dissolved in 1 mol of solvent. B. moles of solute dissolved in 1 kg of solvent. C. moles of solute dissolved in 1 L of solvent. D. moles of solute dissolved in 1 L of solution. E. moles of solute dissolved in the solution. 13. What volume of 2.50 M NaOH (40.00 g/mol) contains 0.100 mole of NaOH? A. 0.250 L D. 0.250 mL B. 40.0 mL E. 0.0400 mL...
Question 22 (2.5 points) How many grams of glucose (C6H1206) are in 3.55 moles of glucose? A) 180. g B) 639 g C) 103 g D) 426 g E) 50.7 g А с ОЕ B D Question 23 (2.5 points) How many grams of MgO are produced when 40.0 grams of O2 react completely with Mg in the following reaction? 2Mg (s) + O2(g) → 2MgO(s) A) 30.4 g B) 50.4 g C) 60.8 g D) 101 g E) 201...