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The volume of a gas sample is 650. mL at STP. What volume will the sample occupy at 25.0°C and 950. torr pressure?
Calculate the mass percent of methanol, ethanol, and MTBE, that must be present in gasoline to yield a mixture of 1.8% oxygen by weight.
A sample of 2.376 g ether (The compound known as diethyl ether [(C2H5)2O], commonly referred to as ether, contains carbon, hydrogen, and oxygen) was combusted in an oxygen rich environment to produce 2.887 g of H2O (g) and 5.643 g of CO2 (g).
A distance of 200 ft must be taped in a manner to ensure a standard deviation smaller than ± 0.03 ft. What must be the standard deviation per 100 ft tape length to achieve the desired precision?
A compound contain 60.87% carbon, 4.38% hydrogen, and 34.75% oxygen then determine its empirical formula?
Which instrument can be used to determine the total calcium in a small blood sample.suggest a second method suitable for determine the free calcium ions on a similar sample of bood.
Coal combustion can affect freshwater or marine (saltwater) organisms in different ways. Describe the steps involved in one such way, from combustion to the effect(s) on one species or group of organisms.
Gas diffusion and Viscosity are both transport properties, Derive the general relationship between the viscosity for a gas and diffusion coefficient .calculate the diffusion coefficient if Given that the viscosity of Ar is 223 micro Pascals at 29..
Determine the mass of the steel bar If the final temperature of the system reached to 21.0 degree celsius?
The reaction of fluorine of 7.6 grams with excess chlorine(Cl) produced 3.3 grams of ClF3. Determine the percent yield of ClF 3 was obtained??
Compute the volume of CO 2 and water vapour produced and the volume of oxygen remaining, when 20.0 dm 3 of propane reacts with 120.0 dm 3 of oxygen. All gas volumes are measured at the same temperature and pressure.
a sample of gaseous SiH4 weighing 0.425g is placed in a 580 mL container. The resulting pressure is 0.61 atm.What is the temperature in degree celsius.
The mass ratio of sodium to fluorine in sodium floride is 1.21:1. a sample of sodium fluoride produced 26.5g of sodium upon decomposition how many grams of fluorine was formed.
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