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25. The density of copper is about 8.96 g/mL. This means that a certain mass of...
Calculate the mass of copper in grams (density = 8.96 g/cm3) with the same volume as...
Calculate the mass of copper in grams (density = 8.96 g/cm3) with the same volume as 100.0 grams of gold (density = 19.31 g/cm3).
Please make your hand write clear thank you d.- Determine the density (in g/mL) of a...
Please make your hand write clear thank you
d.- Determine the density (in g/mL) of a substance that weighs 0.695 Ib and occupies a volume of 3.4 qt. e. found in a room to be 5.7 x 10' mg/cm. How many grams of CO are present in the room if the rooms dimensions measure 3.5 m x 3.0 m x 3.2 m? A cylindrical piece of metal is 2.03 inches high, has a diameter of 17.0 mm wide, and weighs...
This reaction asks for dissolving 0.85 g of kl to 1.2 mL of water. If the...
This reaction asks for dissolving 0.85 g of kl to 1.2 mL of water. If the measured mass is 0.98 g of KI, what is the volume of water necessary to prepare a solution with the same concentration than in the procedure? a 1.8 ml b. 1.1 mL c. 1.2 mL d. 1.4 ml
Write the balanced NET ionic equation for the reaction when copper(II) sulfate and ammonium hydroxide are mixed in aqueous solution. If no reaction occurs, write only NR.
8 Write the balanced NET ionic equation for the reaction when copper(II) sulfate and ammonium hydroxide are mixed in aqueous solution. If no reaction occurs, write only NR. 9 In the reaction between FeCl3 and NaOH, the spectator ions are 10 Convert the concentration of 0.700 M Na2SO4 to g/mL 11 How many mililiters of water should a chemist add if they want to prepare an 0.200 M aqueous solution with 30.2 g of NaCI ? Assume the density of the resulting solution...
Question 3 The volume of the nucleus of a carbon atom is about 9.9x1029 mL The molar mass of carbon is 12.00 g mo...
Question 3 The volume of the nucleus of a carbon atom is about 9.9x1029 mL The molar mass of carbon is 12.00 g mol. What is the density of the carbon nucleus? 08.25x10 g/mL o 119x10g/mL o 121x10 g/mL Question 4 Liquid mercury has a density of 13.6 gmL. Which of the following substances will float on mercury? Density gml1 Substance neptunium nickel osmium zinc 20.4 89 22.6 7.1 114 lead O Osmium Nickel O Neptunium
Question 3 The volume...
A sample of copper ore with a mass of 0.4225 g was dissolved in acid. A...
A sample of copper ore with a mass of 0.4225 g was dissolved in acid. A solution of potassium iodide was added, which caused the reaction: 2Cu2+(aq) + 5I– (aq) → I3–(aq ) + 2CuI(s) The I3– that formed reacted quantitatively with exactly 29.96 mL of 0.02100 M Na2S2O3 according to the following equation: I3– (aq) + 2S2O32– (aq) → 3I– (aq ) + S4O62–(aq ) What was the percentage by mass of copper in the ore? If the ore...
In the lab, a student determines the density of a metal object by measuring its mass...
In the lab, a student determines the density of a metal object by measuring its mass on a balance and its volume by displacement in a graduated cylinder. The data collected by the student is shown. mass of object: 44.701 g volume of water in cylinder before object submersed: 29.47 ml volume of water + object in cylinder: 35.33 mL Calculate the density of the object. d= g/mL Based on the recorded volume data, and assuming that the student used...
71. A solution of nitric acid has a density of 1.5 g/mL and is 20% by...
71. A solution of nitric acid has a density of 1.5 g/mL and is 20% by weight HNO3. a. What is the molarity of this solution of HNO;? b. What volume of this solution should be taken in order to prepare of 5.0 L of a solution of 0.15 M nitric acid by dilution with water? In order to obtain a precise concentration, the 0.15 M HNO solution is standardized against pure Hgo (molar mass = 216.59 g/mol) by titrating...
1. Indicate which of the following would be considered physical properties (P) and which would be...
1. Indicate which of the following would be considered physical properties (P) and which would be considered chemical properties (C) of iron. ー-a. Iron reacts with oxygen to form iron oxides. b. Iron is a good conductor of heat and electricity. C. Iron melts at 1535°C. d. When iron is immersed in a solution of hydrochloric acid, hydrogen gas is produced. e. Iron becomes red-hot when heated. __ f. A500-cc volume of iron has a mass of 3930 g. Iron...
4) what volume (mL) of a 3.1% (by mass) chlorine solution (density= 1.15 g/mL) contains enough...
4) what volume (mL) of a 3.1% (by mass) chlorine solution (density= 1.15 g/mL) contains enough chlorine to raise the chlorine concentration of a 27000 gal swimming pool to 2.5 ppm (by mass). Assume a density of 1.00 g/mL for the pool water. (4 pts)
Please make your hand write clear thank you
d.- Determine the density (in g/mL) of a substance that weighs 0.695 Ib and occupies a volume of 3.4 qt. e. found in a room to be 5.7 x 10' mg/cm. How many grams of CO are present in the room if the rooms dimensions measure 3.5 m x 3.0 m x 3.2 m? A cylindrical piece of metal is 2.03 inches high, has a diameter of 17.0 mm wide, and weighs...
This reaction asks for dissolving 0.85 g of kl to 1.2 mL of water. If the measured mass is 0.98 g of KI, what is the volume of water necessary to prepare a solution with the same concentration than in the procedure? a 1.8 ml b. 1.1 mL c. 1.2 mL d. 1.4 ml
Question 3 The volume of the nucleus of a carbon atom is about 9.9x1029 mL The molar mass of carbon is 12.00 g mol. What is the density of the carbon nucleus? 08.25x10 g/mL o 119x10g/mL o 121x10 g/mL Question 4 Liquid mercury has a density of 13.6 gmL. Which of the following substances will float on mercury? Density gml1 Substance neptunium nickel osmium zinc 20.4 89 22.6 7.1 114 lead O Osmium Nickel O Neptunium
Question 3 The volume...
In the lab, a student determines the density of a metal object by measuring its mass on a balance and its volume by displacement in a graduated cylinder. The data collected by the student is shown. mass of object: 44.701 g volume of water in cylinder before object submersed: 29.47 ml volume of water + object in cylinder: 35.33 mL Calculate the density of the object. d= g/mL Based on the recorded volume data, and assuming that the student used...
71. A solution of nitric acid has a density of 1.5 g/mL and is 20% by weight HNO3. a. What is the molarity of this solution of HNO;? b. What volume of this solution should be taken in order to prepare of 5.0 L of a solution of 0.15 M nitric acid by dilution with water? In order to obtain a precise concentration, the 0.15 M HNO solution is standardized against pure Hgo (molar mass = 216.59 g/mol) by titrating...
1. Indicate which of the following would be considered physical properties (P) and which would be considered chemical properties (C) of iron. ー-a. Iron reacts with oxygen to form iron oxides. b. Iron is a good conductor of heat and electricity. C. Iron melts at 1535°C. d. When iron is immersed in a solution of hydrochloric acid, hydrogen gas is produced. e. Iron becomes red-hot when heated. __ f. A500-cc volume of iron has a mass of 3930 g. Iron...
4) what volume (mL) of a 3.1% (by mass) chlorine solution (density= 1.15 g/mL) contains enough chlorine to raise the chlorine concentration of a 27000 gal swimming pool to 2.5 ppm (by mass). Assume a density of 1.00 g/mL for the pool water. (4 pts)
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