√完了しました！ in question 28 one of the four bottles containing 2 moles 584917-In question 28 one of the four bottles containing 2 moles

Thus there are 5 X 473 grams in the bottle, 2365 grams Divide this weight by the molecular weight of acetic acid (grams/mole) to get the answer MW = 60;Use the number of moles calculated in Step 2 and the molar mass of sucrose from Step 3 to solve for grams 002 mol of C 12 H 22 O 11 × g C 12 H 22 O 11 / 1 mol C 12 H 22 O 11 = 685 g C 12 H 22 O 11Using the values above, if titration requires 102 mmol of NaOH to reach the endpoint, the sample must also contain 102 mmol of acetic acid If the volume of the vinegar used is 805 mL, the molarity of acetic acid is 102 mmol / 805 mL = 0127 M In this experiment, a carefully measured volume of vinegar (V analyte) is placed into a beaker and the mass determined

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In question 28 one of the four bottles containing 2 moles

In question 28 one of the four bottles containing 2 moles-Question 5 Which of the following correctly represents 360 g of water?Chemistry Q&A Library The chemical 5amino2,3dihydro1,4phthalazinedione, better known as luminol, is used by forensic scientists in analyzing crime scenes for the presence of washedaway blood Luminol is so sensitive that it can detect blood that has been diluted 10,000 times A basic solution of luminol is often sprayed onto surfaces that are suspected of containing minute amounts of blood

How Many Grams Of Carbon Dioxide Gas Is Dissolved In A 1 L Bottle Of Carbonated Water If The Manufacturer Uses A Pressure Of 2 4 Atm In The Bottling Process At 25

A gaseous oxide contains 304% of nitrogen, one molecule of which contains one nitrogen atom The density of the oxide relative to oxygen gas is 1/2 mole C) 3/4 mole D) 2 moles 53 How many gms of copper(at No64) would be displaced from the copper sulphate solution by adding 27 gm of aluminium(at A compound contains 28% nitrogen andOne of the challenges of using the second law of thermodynamics to determine if a process is spontaneous is that we must determine the entropy change for the system and the entropy change for the surroundings An alternative approach involving a new thermodynamic property defined in terms of system properties only was introduced in the late nineteenth century by American mathematician JosiahCalculate its molar mass •One mole SO 2 contains 602 x 10 23 SO 2 molecules, which consist of 602 x 1023 S atoms and 2(602 x 10 23) O atoms •Same for ionic compounds, such as potassium sulfide (K 2 S) Concept 4 The information in a chemical formula

2, shows that its molecules contain one S atom and two O atoms;Question 84 (a) Explain why on addition of 1 mol glucose to 1 litre water the boiling point of water increases (b) Henry's law constant for CO 2 in water is 167 × 10 8 Pa at 298 K Calculate the number of moles of CO 2 in 500 ml of soda water when packed under 253 × 10 5 Pa at the same temperature (CompttConsider a container of fixed volume 250 L We inject into that container 078 moles of N 2 gas at 298 K From the Ideal Gas Law, we can easily calculate the measured pressure of the nitrogen gas to be 0763 atm We now take an identical container of fixed volume 250 L, and we inject into that container 022 moles of O 2 gas at 298K The

Molar mass of solvent (CS 2) = 76g mol1 Question 3 The vapour pressure of pure benzene at a certain temperautre is 0 mm Hg The vapour pressure of a solution containing 2 g of a non¬volatile solute in 78 g of benzene is 195 mm Hg What is the molar mass of the solute?30 In Question 28, one of the four bottles contained 2 moles of gas rather than 1 mole Describe how this might change the gas sample behavior in terms of particle speed distribution, kinetic energies of the particles, pressure on the sides of the bottle and mean free path—the averageGlass milk bottles contain 05 litres of milk When the milk is used up the empty bottles are returned to be reused Glass milk bottles are reused 24 times on average The glass to make new milk bottles is produced when a mixture of sand, limestone, soda and recycled glass is heated to about 1600 °C in a furnace

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10 a 0 ounce bottle of mountain dew contains 770 g of sugar how many calories would a person consume in a 365 day year if they drank one 0 ounce bottle of mountain dew per day?Before investigating the scene, the technician must dilute the luminol solution to a concentration of 300×10−2 The diluted solution is then placed in a spray bottle for application on the desired surfaces The forensic technician at a crime scene has just prepared a luminol stock solution by adding 1g of luminol into a total volume of 750mL of H2OCalculate the pressure exerted by 2 moles of sulphur hexafluoride in a steel vessel of volume 6 dm 3 at 70°C assuming It is an ideal gas Answer We will use the ideal gas equation for this calculation as below P = \(\frac {nRT}{V}\) = 939 atm Question 12 A mixture of gases contains 476 mole of Ne, 074 mole of Ar and 25 mole of Xe

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C 6 H 6 Dichloroethane, a compound that is often used for dry cleaning, contains carbon, hydrogen, and chlorine It has a molar mass of 99 g/mol Analysis of a sample shows that it contains 243% carbon and 41% hydrogenThere is a clear relationship between O 2 and H 2 O for every one mole of O 2, two moles of H 2 O are produced Therefore, the ratio is one mole of O 2 to two moles of H 2 O, or latex\frac{1\text{ mol O}_2}{2\text{ moles H}_2\text{O}}/latex Assume abundant hydrogen and two moles of O 2, then one can calculateCheck the below NCERT MCQ Questions for Class 9 Science Chapter 3 Atoms and Molecules with Answers Pdf free download MCQ Questions for Class 9 Science with Answers were prepared based on the latest exam pattern We have Provided Atoms and Molecules Class 9 Science MCQs Questions with Answers to help students understand the concept very well

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Tdrink 9 a 12 ounce can of a soft drink such as coke classic contains 390 g of fluid ounce 2957 ml what is the mass/volume percent of sugar in coke classic?Calculate its molar mass •One mole SO 2 contains 602 x 10 23 SO 2 molecules, which consist of 602 x 1023 S atoms and 2(602 x 10 23) O atoms •Same for ionic compounds, such as potassium sulfide (K 2 S) Concept 4 The information in a chemical formula(Molar mass of benzene 78 g mol1) Answer 80 g/mol Question 4

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A student pours mineral salts into a bottle of cold water Question 28 SURVEY 180 seconds Report question What is the molarity of a solution containing 80 moles of solute in 500 mL of solution?The US Environmental Protection Agency (EPA) places limits on the quantities of toxic substances that may be discharged into the sewer system Limits have been established for a variety of substances, including hexavalent chromium, which is limited to 050 mg/LOne factor to consider since the tablet contains a carbonate, the neutralization reaction produces carbon dioxide Because CO 2 dissolves in water to produce carbonic acid, H 2 CO 3, it can cause your results to be off You will drive off the CO 2 by heating the solution just below boiling for about 5 minutes to alleviate this problem

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