The chemical reaction from two chemicals resulted in a waste product which is composed of an oxygen atom bonded by two hydrogen atoms. Afterwards, he checks the quality of the substance at 131 F. The actual recorded mass for three experiments of the 0.5 cubic meter substance were 0.0525 , 0.0656 and 0.0577 ,respectively. What is the quality of the substance for each trial?

The chemical reaction from two chemicals resulted in a waste product which is composed of an oxygen atom bonded by two hydrogen atoms. Afterwards, he checks the quality of the substance at 131 F. The actual recorded mass for three experiments of the 0.5 cubic meter substance were 0.0525 , 0.0656 and 0.0577 ,respectively. What is the quality of the substance for each trial?

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter7: Statistical Data Treatment And Evaluation

Section: Chapter Questions

Problem 7.19QAP

See similar textbooks

Similar questions

58 Magnesium will burn in air to form both Mg3N2 and MgO. What mass of each product would be found if burning a 3.11-g sample of magnesium to completion produces a combined total of 5.09 g of the two products?
Convert 45 mi/h to m/s, showing how the units cancel appropriately.
62 Ammonium dinitramide (ADN), NH4N(NO2)2, was considered as a possible replacement for aluminium chloride as the oxidizer in the solid fuel booster rockets used to launch the space shuttle. When detonated by a spark, AND rapidly decomposes to produce a gaseous mixture of N2,O2, and H2O. (This is not a combustion reaction. The ADN is the only reactant.) The reaction releases a lot of heat, so the gases are initially formed at high temperature and pressure. The thrust of the rocket results mainly from the expansion of this gas mixture. Suppose a 2.3-kg sample of ADN is denoted and decomposes completely to give N2,O2, and H2O. If the resulting gas mixture expands until it reaches a temperature of 100°C and a pressure of 1.00 atm, what volume will it occupy? Is your answer consistent with the proposed use of ADN as a rocket fuel?
During the discussion of gaseous diffusion for enriching uranium, it was claimed that 235UF6 diffuses 0.4% faster than 238UF6. Show the calculation that supports this value. The molar mass of 235UF6=235.043930+618.998403=349.034348 g/mol, and the molar mass of 238UF6=238.050788+618.998403=352.241206 g/mol.
At elevated temperatures, sodium chlorate decomposes to produce sodium chloride and oxygen gas. A 0.8765-g sample of impure sodium chlorate was heated until the production of oxygen gas ceased. The oxygen gas collected over water occupied 57.2 mL at a temperature of 22C and a pressure of 734 torr. Calculate the mass percent of NaClO3 in the original sample. (At 22C the vapor pressure of water is 19.8 torr.)
A balloon filled with helium gas is found to take 6 hours to deflate to 50% of its original volume. How long will it take for an identical balloon filled with the same volume of hydrogen gas (instead of helium) to decrease its volume by 50%?
The density of a mixture of gases may be calculated by summing the products of the density of each gas and the fractional volume of space occupied by that gas. Assume that dry air is 20.96% by volume oxygen, 78.11% nitrogen, and 0.930% argon. Determine the density of argon.
Ammonia is produced industrially by reacting N2 with H₂ at elevated pressure and temperature in the presence of a catalyst: N₂(g) + H₂(g) → NH3(g) (unbalanced) In actual practice, this reaction gives a yield of only 13%, taking this into account what mass of ammonia would be produced from a 1:1 mole ratio mixture in a reactor that has a volume of 3.91 x 103 L, under a total pressure of 116 bar at T = 632 °C? Actual amount = g مه
Gay-Lussac's law of combining volumes states that the volumes of reactants and products are in small whole-number ratios. Which of the following is NOT an assumption for the law of combining volumes? All of these are assumed for the law of combining volumes. The products and reactants must all be at the same pressure. The products and reactants must all be gases. The products and reactants must all be at the same temperature.
A test of an automobile engine’s exhaust revealed that 3.4 g of NO2was emitted in 10. minutes of operation. How many moles of NO2would this engine release if it were used for a 25-minute commute, assuming that this measured number is representative of the emission under all circumstances?
Nitroglycerin (C3H5N3O9) is a powerful explosive. Its decomposition may be represented by 4C3H5N3O9 ⟶ 6N2 + 12CO2 + 10H2O + O2 This reaction generates a large amount of heat and many gaseous products. It is the sudden formation of these gases, together with their rapid expansion, that produces the explosion. (a) What is the maxi- mum amount of O2 in grams that can be obtained from 2.00 × 102 g of nitroglycerin? (b) Calculate the percent yield in this reaction if the amount of O2 generated is found to be 6.55 g.
The mass of the plastic bag, baking soda, and vinegar before the reaction was equal to the mass of the plastic bag, baking soda, and vinegar after the reactionBubbles were produced during the reaction which was evidence a gas was being producedThe plastic bag did not change in any way which indicated it was not involved in the reactionThe mass of the baking soda was exactly equal to the mass of the vinegar used to create the reaction.