

12. If a sample of water has a density of 1.025 g/cm', how many liters is...
9) Osmium has a density of 22.6 g/cm3. What volume (in cm) would be occupied by a 41g sample of osmium? 10 Iron has a density of 7.9 g/cm3. What is the mass of a cube of iron with the length of one side equal to 65.0 mm? 11) 9.31 g is the same mass as A) ug B) kg C) D) mg E) dg се 12) According to the United States Food and Drug Administration, the recommended daily requirement...
ethanol has a density of 0.87 g/ml. how many liters of ethanol are in 1.50 kg of ethanol?
How many liters of Co, are produced in the combustion of 12 g of a sample composed of 40.0% C, 6.7% H and 53.3% О, if reacts with 10.OL O2 at 25-C and 1 atm. (Hint: the molecule contains 6 C) Which is the limiting reactant? What is the theoretical yield? How much reactant in excess remains after the reaction has finished
A) A particular brand of gasoline has a density of 0.737 g/mL at 25Celsius. How many grams of this gasoline would fill a 12.9 gal tank (1US gal=3.78L)? B) A block of metal has a width of 3.2 cm, a length of 17.1 cm, and height of 4.3 cm . Its mass is 1.1 kg . Calculate the density of the metal.
A submarine is at a depth of 1000 m in sea water (density = 1.025 g/cm3). For the comfort of the crew, the interior is kept at a pressure of 1.0 atm. What is the TOTAL force on a circular window with a diameter of 0.50 m?
xperiment 8-Data and Observations 5. A hydrate is 38.41% water by mass. The sample has a mass of 0.6689 g. a. How many grams of water are in the sample of the hydrate? b. How many moles of water are in the sample? c. How many molecules of water are in the sample?
How many liters of water can be formed if 5.0 liters of ethylene reacts with 1.0 liters of oxygen in this reaction at STP? C2H4(g) + 302(g) > 2CO2 (g) + 2H20 (g)
How do I do 28-35
28. A sample of gas measures 5.00 liters at 1.00 atm. To change the volume to 3.50 liters at constant temperature, what pressure must be applied? 29. How many moles of by drogen (He) fill a weather balloon whose volume is 250 liters at a pressure of 0.50 atm with a temperature of-10.0 C? 30. What is the pressure of 3.50 moles of helium at -50.0'C in a rigid container whose volume is 25.0 liters?...
1) Sample of nitrogen gas, N2 weighs 15.3 g. How many molecules N2 and how many atoms of N are present in this sample? 1a)A mixture of sand and salt is found to be 57 percent NaCl by mass. How many moles of NaCl are in 47 g of this mixture? 1b) What is the mass of 4.6*10^23 of ammonia? 1c) A water solution of sulfuric acid has a density of 1.67 g/mL and is 65 percent H2SO4 by mass....
3. Unit Conversion Problems (Show your conversion plan!) a) How many grams are in 20.73 kg ? b) How many kiloograms are in 1.250 x 10 mg ? c) How many centimeters are in one and three-fourths (exactly 1.750) inches? d) How many liters are in 8.62 gal ? 4. Calculate the density of each of the samples deseribed, a) Battery fluid, if 175 mL of the fluid has a mass of 215 g? b) A urine sample, if it...