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Many gases are shipped in high-pressure containers. Consider a steel tank whose volume is 71.0 L and which contains O2 gas at a pressure of 17300 kPa at 25°C. (a) What mass of O2 does the tank contain? kg (b) What volume would the gas occupy at STP? L (c) At what temperature would the pressure in the tank equal 150. atm? K (d) What would be the pressure of the gas, in kPa, if it were transferred to a container at 24°C whose volume is 52.60 L? kPa
A patient's blood test shows that she has elevated levels of LDL (low density lipoproteins) at 4.12 mmol/L. Convert this concentration to units of molarity (mol/L)
at a particular temperature and a0 2.57 10-3 m concentration versus time data were collected for this reaction and a
a buffer is prepared by combining 10.0 g of NaH2PO4 with 150 mL of 0.20 M NaOH and diluting to 2.0 L. what is the pH of the buffer? (Ka (H2PO4-)= 6.2 x 10^-8)
Consider a solution that is 1.1*10^-2 M in Ba2+ and 2.0*10^-2 M in Ca2+. A - If sodium sulfate is used to selectively precipitate one of the cations while leaving the other cation in solution, which cation will precipitate first? Ba2+ precipitates..
use the wattage of the lightbulb and the time it is on to calculate in joules assume that the cylinder and lightbulb
Which element, indicated by letter on the periodic table above, has a 2+ ion with the electron configuration [Ar]3d10
what was the mass (g) of molecular oxygen from the air that combined with the substance to produce the dense gas? B. What is the ratio of the weight of oxygen burned to the weight of the dense gas produced?
How many total moles are produced when 0.69 mol of ethanol (CH3CH2OH) are combusted in oxygen to produce carbon dioxide and water
If the height of the candes in the container increases at the rate of 0.270 cm/s, at what rate (kilograms per minute) does the mass of the candies in the container increase?
How many moles of Allyl Sulfide (C3H5)2S in 23.2g? How many H atoms are in 0.85 mole of allyl sulfide?How many atoms of Carbon are in 4.20 X 10^23 molecules of allyl sulfide.
Write the balanced chemical equation that corresponds to this reaction. B) If 15g cyclohexane is burned in a calorimeter with a heat capacity of 230kJ/K, what temperature change do you expect
An unknown metal m reacts with sulfur to form a compound with te formula M2S3. If 3.12g of m reacts with 2.88g of S, what are the names of M AND M2S3
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