I have the answers to these problems but I would like to learn how these are solved.
1) Round off each number to 2 significant figures
a) 360900 (answer is 360000) b) 0.052590 (answer is 0.053)
2) The density of titanium is 4.51 g/cm3. What is the volume (in mL) of 2.50g of titanium ? (Answer: 0.554mL)
I have the answers to these problems but I would like to learn how these are...
I have the answers to these problems but I don't understand why these are the answers and how to do them. 1. Vinegar was titrated with Mg(OH)2 to find the content of acetic acid (HC2H3O2). If 20.0mL of vinegar required 5.00 mL of .800M Mg(OH)2 to reach the end point, what is the concentration of acetic acid? (Answer: .400M) 2. A Student titrates 25.00mL of tap water with 18.2 mL of .100M AgNO3 to completely precipitate the chloride ion. The...
Survey Quantities and Units, Understand Questionnd Learn How to Solve Problems The density of an unknown crystal is 2.65 what will the volume read if a 4.46 g sample is added to a graduated cylinder containing 25.0 mL of water? m *Round your answer to one decimal place Provide your answer below: mL
How did they get the answers for #1 and 2 ???
1. What is the volume of 23.2 g of zinc (density 7.14 g/mL)? .25 mL b) 0.308 mL c) 165 mL d)30.3 mL 2. The number that is the answer to the equation: Density with the correct number of significant figures is: 19.059 g/5.200 mL, when written ?) 3.6652 gìnl. b) 3.665 gin! b) 3.665 g/ml )3.67 g/mL d)3.7 g/ml
Organic Chemistry question. Please show work, so I can learn how to solve the problem. Thanks! What quantity of 7.00 M aqueous H2SO4 (in mL) would be required to neutralize 817 mL of 3.00 M aqueous Ca(OH)2? Please carry maximum number of significant figures through to final answer then round to a whole number.
Help please, I have to briefly explain how I got my
answers!
1. Which one of the following is an intenstve propanty? Mass . Temperature Length D. Volume Amount 2. Which of the items below would be considered the most dense? A. a piece of wood with a volume of 2.5 L and a mass of 12.5 kg B. a ball with a volume of 139 mL and a mass of 93 g C. a tire with a volume of...
-A sample of kerosene weighs 36.4 g. Its volume was measured to be 45.6 mL. What is the density of kerosene? -Acetone, the solvent in some nail polish removers, has a density of 0.791 g/mL. What is the volume of 16.4 g of acetone? -A graduated cylinder was filled with water to the 19.1 mL mark and weighed on a balance. Its mass was 34.16 g. An object made of silver was placed in the cylinder and completely submerged in...
I would like to get answers thanks in advance.
Review Constants Periodic Table A 1.0 L container of liquid nitrogen is kept in a closet measuring 1.2 m by 1.1 m by 1.8 m. Part A Assuming that the container is completely full, that the temperature is 21.0 °C, and that the atmospheric pressure is 1.1 bar, calculate the percent (by volume) of air that is displaced if all of the liquid nitrogen evaporated. (Liquid nitrogen has a density of...
#1. Determine the uncertainty in each measurement. I have the answers but I need to learn how this was solved. Answers are: (a: +0.1cm, b:+0.01s, c: +0.001 L, d: +100L, e: +0.0001g, f: +0.1 * 10-3m3. a) 0.4cm b) 35.00s c) 10.600 L d) 2100L e) 0.0490 g f) 6.9 x 10-3 m3 #2. Convert 1.8 quarts to cubic centimeters. Useful information: 1mL = 1cm3 1L = 1.057qt
What is the mass (in grams) of a femur (leg bone) having a volume of 118 cc? The density of bone is 1.8 g/cc. Iron has a density of 7.8 g/cc. What is the mass, in grams, of a 4.4 cm3 piece? What is the volume (in cc) of a sample of mercury that has a mass of 20.5 g. The density of mercury is 13.6 g/cc. Aspirin has a density of 1.40 g/cc. What is the volume in cubic...
Part A How much ice in grams would have to melt to lower the temperature of 358 mL of water from 15°C to 0 °C? (Assume that the density of water is 1.0 g/mL.) Express your answer using two significant figures. m = 67 8 Previous Answers Answer Requested Return to Acciainment Provide Feedhack