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1) A gas in a closed-tube manometer has a measured pressure of 0.047 atm. Compute the pressure in mmHg and Pascal's?
2) Presume had a 3.15L Sample of neon gas at 21C as well as a pressure of 0.951 atm. Explain what would be the volume of this gas if the pressure were increased to 1.292 atm while the temperature remained constant?
3) A sample of nitrogen gas at 18C as well as 760 mmHg has a volume of 3.92 ml. Define what is the volume at 0C and 1 atm of pressure?
To make strawberry jam, crushed strawberries and sugar are mixed in a 45:55 mass ratio, and the mixture is heated to evaporate water until the residue contains one-third water by mass. Calculate how many pounds of strawberries are needed to make a..
Calculate the rate constant and half- life for the radium decay. Starting with 1.0 g of the radium sample, what is the activity after 500 years? The molar mass of ra-226 is 226.03 g/mol.
The nitrogen gas above was collected over water, the volume of 'wet' nitrogen produced at 23C and 99.5kPa was 14.81mL. Explain what was the percentage yield. The vapor pressure of water at 23C is 2.81kPa
what is the maximum height achieved if a 0.500 kg mass is thrown straight upward with an initial speed of 55 ms-1?
At a certain temperature and pressure, 1.3L of reacts with 3.9L of H2. if all the N2 and H2 and are consumed, what volume of , at the same temperature and pressure, will be produced
How many moles of Fe would be formed from 50 grams of Fe3O4 in the following equation
Presuming that the drug components of something we are experimenting with dissolves entirely when we stir the tablet with 1:1 ethanol/dichloromethane, Explain what would be solid that's left behind
Hydrocyanic acid (HCN) is a weak acid with Ka = 4.9 x 10-10. The pH of a solution that contains equal numbers of moles of HCN and KCN is closest to
commercial concentrated aqueous ammonia is a solution of 28.0%, by mass, ammonia, NH3, (molar mass=17.0 g/mol) in water. the density pf the solution is .900g/mL.
9.92 grams of a compound with a molar mass of 124.0 grams/mole when dissolved in 150.0 grams of water gave a solution which had a freezing point of -2.69 °C. Calculate the experimental value of the van't Hoff factor.
Explain two electrolytic cells connected in series. Knowing that one of them is deposited 0.50 g of silver (Ag) from a solution of AgNO3, compute the mass of chromium (Cr) is deposited on the cathode of another cell from a solution of Cr (NO3) 3.
Manganese forms the following oxide minerals: manganite (MnOOH), manganosite (MnO), pryolusite (MnO2), and hausmannite (Mn3O4).
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