# Question 5 1 out of 1 points calculate the pressure

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Question 51 out of 1 pointsCalculate the pressure of a 768 mL sample of helium gas at -207.3°C if it exerts a pressure of 175 kPa at 25.0°C and 925 mL.
Question 61 out of 1 pointsAssuming ideal behavior, what is the density of argon gas at STP, in g/L?
Question 71 out of 1 pointsIf a certain pressure supports a 256 mm high column of mercury, how high a column of water would it support? The density of mercury is 13.6 g/cm3.
Question 81 out of 1 pointsA 6.36-L sample of carbon monoxide is collected at 55°C and 0.875 atm. What volume will the gas occupy at 1.05 atm and 25°C?
Question 91 out of 1 pointsCalculate the volume of 0.545 mol of a gas at 75 °C and 0.678 atm.
Question 101 out of 1 pointsWhat volume of chlorine gas at 646 torr and 32°C would be produced by the reaction of 14.75 g of MnO2according to the equation: MnO2(s) + 4HCl(aq) => MnCl2(aq) + 2 H2O(l) + Cl2(g)
Question 111 out of 1 pointsA student adds 0.1727 g of an unknown gas to a 125-mL flask and finds the pressure to be 736 torr at 20.0°C. Which choice is most likely to be the unknown gas?
Question 121 out of 1 pointsCalculate the volume of a sample of carbon monoxide at 214°C and 367 torr if it occupies 3.65 L at 298 K and 745 torr.