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If 5.000 moles of calcium carbonate vere reacted in excess hydrochloric acid, complete the table by...
If 0.128 moles of CaFz vere reacted in excess sulfuric acid, anysver the questions below. Complete...
If 0.128 moles of CaFz vere reacted in excess sulfuric acid, anysver the questions below. Complete the table filling in the blanks. grams 1 CRF2() + 1 H,804(aq) - 2 HF (L) + 1 CASO. () molar mass (grams) (mole) moles 0.128 1. The driving force the reaction is A. tranfer of B formation ions of HF liquid Cformation of Casoa solid D. transfer of electrons E. both b and o 2. Identify the type of reaction by its appropriate...
If 51.75 grams of magnesium metal reacted in excess acid, (match the following questions to the...
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...
A certain hydrochloric acid solution has a mole fraction of 0.23 HCI. the density of this...
A certain hydrochloric acid solution has a mole fraction of 0.23 HCI. the density of this solution is 1.18g/mL a. how many moles of HCI are in 1 mole of solution? b. what is the weight percent of HCI in this solution? c. what is the molarity of HCI in this solution? d what is the molality of HCI in this solution? e. what is the weight percent of water in this solution? f. what is the mole fraction of...
Please Show All Work SHOW ALL UNITS IN YOUR CALCULATIONS AND ANSWERS FOR CREDIT 1. The...
Please Show All Work
SHOW ALL UNITS IN YOUR CALCULATIONS AND ANSWERS FOR CREDIT 1. The mass of a single atom of an unknown element is 1.792x1022 grams. Answer the following questions about this unknown element. a) What is the mass of one atom of the unknown element in atomic mass units (amu)? Hint: 1 amu 1.661x1024 g (3 pts) Answer: b) How many atoms of this unknown element are there in 1.00 mole of this element? (1 pt) Answer:...
problem set 6 2. Magnetite Fe,O, is an iron containing ore. How many moles of iron...
problem set 6
2. Magnetite Fe,O, is an iron containing ore. How many moles of iron atoms would be found in 2.5 moles of magnetite? How many atoms of iron would this be? Show all work 3. Consider the following pairs. For each pair, circle the quantity that contains the greater number of atoms or molecules Then explain your reasoning a) 1 mole Na or 1 gram Na b) 1 molecule of lz or 1 mole of la C) 58.9...
2. Complete the following calculations: a. How many atoms are in 0.932 moles of copper? b....
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?
Homework #7A Name: Due date: 3-16-20 1. How many moles of water, H20, contain 9.03 *...
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...
12. Molarity, M, is defined as A. moles of solute dissolved in 1 mol of solvent....
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...
7) Magnesium hydroxide, Mg(OH)2, as "Milk of Magnesia" can be used to neutralize excess stomach acid,...
7) Magnesium hydroxide, Mg(OH)2, as "Milk of Magnesia" can be used to neutralize excess stomach acid, represented by HCl(ag) according to the chemical equation below. Mg(OH)2(s)+2HCI (ag)-MgCl2(ag)+ 2H20( When 5.00 g of HCl are combined with an excess of Mg(OH)2, what mass of MgCl2 can be produced? [Molar masses: H, 1.01 g/mol; O, 16.00 g/mol; Mg, 24.31 g/mol; Cl, 35.45 g/mol] A) 2.50 g E) 70.5 g D) 6.53 g C) 0.957 g B) 13.1 g 8) What is the...
1. Short Answer Questions on Gases: a State whether the following comments are True or Falso....
1. Short Answer Questions on Gases: a State whether the following comments are True or Falso. If false, modify the statement so that it is correct (5 pts ench). 1. Pressure and volume are inversely proportional 2. Gases behave most ideally at high pressure and low temperature 3. Gases have definite shape and no definite volume 4. Pressure and temperature are directly proportional b. In a reaction flask, 120 torr of CO2 is combined with 150 torr of NH3(g) and...
If 0.128 moles of CaFz vere reacted in excess sulfuric acid, anysver the questions below. Complete the table filling in the blanks. grams 1 CRF2() + 1 H,804(aq) - 2 HF (L) + 1 CASO. () molar mass (grams) (mole) moles 0.128 1. The driving force the reaction is A. tranfer of B formation ions of HF liquid Cformation of Casoa solid D. transfer of electrons E. both b and o 2. Identify the type of reaction by its appropriate...
Please Show All Work
SHOW ALL UNITS IN YOUR CALCULATIONS AND ANSWERS FOR CREDIT 1. The mass of a single atom of an unknown element is 1.792x1022 grams. Answer the following questions about this unknown element. a) What is the mass of one atom of the unknown element in atomic mass units (amu)? Hint: 1 amu 1.661x1024 g (3 pts) Answer: b) How many atoms of this unknown element are there in 1.00 mole of this element? (1 pt) Answer:...
problem set 6
2. Magnetite Fe,O, is an iron containing ore. How many moles of iron atoms would be found in 2.5 moles of magnetite? How many atoms of iron would this be? Show all work 3. Consider the following pairs. For each pair, circle the quantity that contains the greater number of atoms or molecules Then explain your reasoning a) 1 mole Na or 1 gram Na b) 1 molecule of lz or 1 mole of la C) 58.9...
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?
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...
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...
7) Magnesium hydroxide, Mg(OH)2, as "Milk of Magnesia" can be used to neutralize excess stomach acid, represented by HCl(ag) according to the chemical equation below. Mg(OH)2(s)+2HCI (ag)-MgCl2(ag)+ 2H20( When 5.00 g of HCl are combined with an excess of Mg(OH)2, what mass of MgCl2 can be produced? [Molar masses: H, 1.01 g/mol; O, 16.00 g/mol; Mg, 24.31 g/mol; Cl, 35.45 g/mol] A) 2.50 g E) 70.5 g D) 6.53 g C) 0.957 g B) 13.1 g 8) What is the...
1. Short Answer Questions on Gases: a State whether the following comments are True or Falso. If false, modify the statement so that it is correct (5 pts ench). 1. Pressure and volume are inversely proportional 2. Gases behave most ideally at high pressure and low temperature 3. Gases have definite shape and no definite volume 4. Pressure and temperature are directly proportional b. In a reaction flask, 120 torr of CO2 is combined with 150 torr of NH3(g) and...
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