2- Analytical chemistry : is a measurement science consists of a set powerful ideas and methods that are useful in all fields of science and medicine. It is a qualitative analysis and quantitative analysis . True False
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Q: The van der Waals equation of state was designed (by Dutch physicist Johannes van der Waals) to pred...
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Q: Name the following compound. Be sure to answer all parts.
A: To write the IUPAC Name
Q: 7. Predict the major organic product and propose a mechanism for the following reaction. Show each s...
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Q: 2. The Henry's law constant for helium gas in water at 30°C is 3.7 x 10-4 M/atm and the constant for...
A: Answer is given below
Q: How many grams of dry NH,Cl need to be added to 2.30 L of a 0.700 mol L solution of ammonia, NH3, to...
A: Given Data :
Q: Pentaborane B5H9(s) burns vigorously in O2 to give B203(s) and H20(1). Calculate AHpxn for the combu...
A: Heat of reaction: at particular temperature the amount of heat released or absorbed during a che...
Q: 4. The density of acetonitrile (CH3CN) is 0.786 g/mL and the density of methanol (CH3OH) is 0.791 g/...
A: Mole fraction of x = no.of moles of x/total moles Molality is the ratio of moles of solute to the m...
Q: What is the theoretical yleld of chromium that can be produced by the reaction of 40.0 g of Cr203 wi...
A: Theoretical yield is the amount of product (Cr here) formed when the given amount of limiting reacta...
Q: Enter the number of electrons in each energy level (shell) for each of the elements. If the energy l...
A: Enter the number of electrons in each energy level (shell) for Hydrogen element.,
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A: Polarity of given compounds:
Q: Write the solubility equilibrium constant expression for silver phosphate Show the ICE Table and ca...
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Q: What is the pH of a solution with a hydrogen ion concentration of 4.70X10 6 M? Your Answer: Answer
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Q: 12.43 How is vapor-pressure lowering related to a rise in the boiling point of a solution?
A: Please find your solution below : Vapour pressure of a solvent is defined as the pressure exerted by...
Q: calculating the concentration of acid in each buffer
A: Concentration of acetic acid (weak acid) = 1.10 M Concentration of sodium acetate (salt) = 0.90 M pK...
Q: What fraction of a reactant has been consumed after 4 half- lives in a first-order reaction? O a. 87...
A: Given- First order reaction ->number of half-life =4
Q: Consider the following reaction carried out a 1000 K: A (g) B (g) + C2 (g) Kp = 0.1000 a. At 1000 K ...
A: a.) To calculate the partial pressure , we would draw an ICE table and use given Kp value and Initia...
Q: taborane BgHg(s) burns vigorously in 02 to give B2031s) and H20(). Calculate AHxn for the combustion...
A: 2B5H9 (s) + 12O2(g) -----> 5B2O3(s) + 9H2O( l)
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A:
Q: A bufter sokution is prepared by mixing 145 ml. of .100 mol L HCI win 20 ml. of 0.100 mol L Trie. Wh...
A: Given-> Volume of HCl=14.5 ml Molarity of HCl = 0.100 mole/L Volume of tris =29 ml Molarity of tr...
Q: Calculate the change in pH that results from adding 0.160 M NaNO3 to 1.00 L of 0.160 HNO3 (aq).
A:
Q: Name the highlighted chemical group in each molecule. Lewis structure name of highlighted group Н—о:...
A: We have to identify the highlighted group.
Q: Write the net balanced equation for the reaction of ferrocene and (NH4)2Ce(NO3)6. What is the role o...
A: Ferrocene is an organometallic compound consisting of 2 cyclopentadienyl rings bound to a central me...
Q: 25.0 cm' of 2.0 mol dm- hydrochloric acid, HCI, was added to 50.0 cm' of 2.0 mol dm-3 sodium hydroxi...
A: Given data: Volume of HCl = 25.0 cm3 = 25 mL Molarity of HCl = 2.0 mol/dm3 = 2.0 mol/L Volume of N...
Q: An 93.1 mL sample of "wet" O2 (g) is collected overwater at 21.4oC and a barometric pressure of 755 ...
A: Here we have to use Daltons law of partial pressure. And to calculate the volume percent we need to ...
Q: An unknown compound has the following chemical formula: Al,Cl where x stands for a whole number. Mea...
A: given formula = Al2Clx
Q: Be sure to answer all parts. Calculate the molecular mass or formula mass (in amu) of each of the fo...
A: Molecular mass or formula mass of the substance is the sum of the atomic mass of each element presen...
Q: Be sure to answer all parts. Predict the sign of the entropy change for each of the following proces...
A: Given, Predict the sign of the entropy change for each of the following processes : (a). I2 (s) ---...
Q: The van der Waals equation of state was designed (by Dutch physicist Johannes van der Waals) to pred...
A:
Q: Determine the heat of reaction for the decomposition of calcium carbonate CaCO3(g) → CaO(s) + CO2(g)...
A: Determine the heat of reaction for the decomposition of calcium carbonate CaCO3(s) → CaO(s) + CO2(g)...
Q: following reaction is first order in N2O5: N2O5(g)→NO3(g)+NO2(g) The rate constant for the reactio...
A: N2O5 (g) --> NO3(g) + NO2(g) Rate constant = 0.053 s^-1 [N2O5]=0.055 M
Q: 5. Magnesium hydroxide (Mg(OH)2) has a pKsp value of 11.25. In a solution at pH 10, what is the maxi...
A: Given, pKsp of Mg(OH)2 = 11.25 pH = 10 What is the maximum Mg2+ concentration in µmol/L = ? What...
Q: 12.62 A solution of 2.50 g of a compound having the empirical formula C,H,P in 25.0 g of benzene is ...
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Q: boron trifluoride: partial pressure: Your answer is incorrect. • Total pressure in tank: Your answer...
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Q: 3. Commercial concentrated aqueous ammonia is 28% NH3 by mass and has a density of 0.90 g/mL. What i...
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Q: You are assigned as a design engineer to design a Carbon Dioxide Capsule (CO2). The design means you...
A: Given: Diameter of cylindrical float = 0.45 m Radius of cylindrical float = 0.225 m length of float ...
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Q: Be sure to answer all parts. Predict the sign of the entropy change for each of the following proces...
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Q: 6. Lysozyme is an enzyme that breaks bacterial cell walls. A solution containing 0.150 g of this enz...
A: Given Data : 1. Mass = 0.150 2. Osmotic pressure = 0.953 torr π = 0.953 torr × 0.00316 atm...
Q: Which of the following is true: I. First order reactions proceed at a constant rate II. First order ...
A: Given- First order reaction.
Q: ACT 3 Colligative Properties of Nonelectrolyte Solutions Review Questions 12.39 What are colligative...
A: Solution is made up of two components: solute and solvent. Component which is present in major amoun...
Q: What is the mass of 4.50 x 10- Cu atoms? Multiple Choice 7.47 x 10 amu 7.47 x 10 g 4.75 g 63.55 amu
A: Calculation of mass of cu atom:
Q: You are asked to prepare a pH = 3.75 buffer solution starting from 1.25 L of a 1.00 M solution of hy...
A: Given: pH of solution = 3.75 Volume of HF solution = 1.25 L Concentration of HF = 1.00 M Ka of HF = ...
Q: if the change in pH after addition of 1.0mL of 0.10N HCI is 0.09, what is the total buffer capacity ...
A: Given-> Volume of HCl = 1.0 ml Normality = 0.10 N Change in pH = 0.09 Volume of solution = 20 ml...
Q: Which of the following is NOT an intermediate in the following process? H3O*, Heat OH NH NH3* а. H20...
A:
Q: Check the statement(s) that are true. A. The internal electrons contribute to increasing the at...
A: Screeing effect is the effect in which inner shell electrons shields the the outer most shell electr...
Q: What is the pH of 2.24 M HCI solution?
A: Given :- concentration of HCl solution = 2.24 M To be calculated :- pH of solution
Q: Click in the answer box to activate the palette. Determine the empirical formula of a compound havin...
A: Element % K 24.74 Mn 34.76 O 40.50
Q: OH (d) CN
A: The compound has one carbonyl and one ester groups are present . Now to reduce the ester group witho...
Q: A toy top has a mass of 32.0 g CU. How many atoms CU are in this spinning top, given that the avera...
A: Given :- mass of Cu at the toy top = 32.0 g Average atomic mass of Cu = 63.55 g/mol To...
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- Classify the following as qualitative or quantitativestatements, giving your reasons. (a) The sun isapproximately 93 million mi from Earth. (b) Leonardoda Vinci was a better painter than Michelangelo. (c) Iceis less dense than water. (d) Butter tastes better thanmargarine. (e) A stitch in time saves nine.A gecdsb.elearningontario.ca/d21/Ims/dropbox/user/folder_submit_files.d21?db=24723416&grpid%3D0&isprv3D0&bp=D0&ou%3D19165928 A concept map is your own expression of the connections between concepts- multiple connections can form between ideas, so there should be lines connecting many things wherever possible. Use the following terms to create a concept map of Grade 10 Chemistry concepts. Include a brief definition/example for each term. -Matter -Atom -Subatomic particles -Metals -Non metals -Pure substances -Mixtures -Physical Properties -Chemical Properties -Physical Changes -Chemical Changes -Types of Reactions -Acid - Base -pH Submit Cancel Type here to search5. (a)/ Provide the 12 principles of Green chemistry and explain the significance of any two of them.
- O Mge x O yal-Scen, x PRACTICALIAESEARD hon of tuter Ne Te O Fik | CyUsers/NolyDownload/Physical-Science QL.Mod2.paf Guest = Physical-Science_Q1_Mod2.pdl 100% so that it dinnoltes a lot of things, and there are things that uon't mix unth it." -Nathan Myhrold What's In Directions: Based on your understanding of the formation of heavier elementa during stellar nucleosynthenin, complete the table below by writing the reactanta and chrmical equatitts af the following elements. Reactant Rractant Atomie Mass Chemical Equation Product Helium Ti Helium Ar Helium Si Helium Cr Helium Mg What's New Activity Objective Investigate the soluhility and miscibility of ueveral subatances tuaing water an the wolvent. Drseribe what happens at the molecular level for each setup. Lastly, identify the palarity of the substances based on the reault of each setup. Materials: 5 plastic cups half-filed with water, 5 ml of denatured alcohol, 5 ml of cooking nil, 5 ml of soy sauce, 5 ml of ethyl alcohol, and 5 ml…101 Chem101 b Search results for 'Using the infor x B Brainly.com - For students. By stu X G Using the information in the tab + -> A app.101edu.co I Apps y! email b bartleby B Brainly.com - For st. = Google Docs M gmail O eagle adv H school email S canvas m Monthly | My Classes 101 Chem101 general E Reading list Question 19 of 44 Submit Using the information in the table, the rate law for the reaction A(g) + 3 B(g) → C(g) + 2 D(g) is Rate [A], (M) [B], (M) (M/s) A) Rate = k[A][B]³ 1.25 0.100 0.850 B) Rate = k[B] C) Rate = k[A][B] 1.25 0.300 2.55 D) Rate = k[A][B]² 3.75 0.200 5.10 2:47 PM P Type here to search 67°F Clear 7/19/2021 近A chemist analyzes a sample of iron ore furnished by the National Institute of Standards and Technology, NIST. He obtains the following results: = 10.52%, s = 0.05, n = 10. The NIST's value for this sample is 10.60% Fe. Is the chemist's result (mean) significantly different at the 95% confidence level?
- Green Chemistry and Atom Economy The purposeful design of chemical products and processes that minimize the use of environmentally hazardous substances and the generation of waste is known as green chemistry. Green chemistry is a philosophical approach that is being applied to many areas of science and technology, and its practice is summarized by guidelines known as the “Twelve Principles of Green Chemistry” (see details at this website (http://openstaxcollege.org/l/16greenchem) ). One of the 12 principles is aimed specifically at maximizing the efficiency of processes for synthesizing chemical products. The atom economy of a process is a measureof this efficiency, defined as the percentage by mass of the final product of a synthesis relative to the masses of all the reactants used: atom economy = mass of product/mass of reactants × 100%Though the definition of atom economy at first glance appears very similar to that for percent yield, be aware that this property represents a…Green Chemistry and Atom Economy The purposeful design of chemical products and processes that minimize the use of environmentally hazardous substances and the generation of waste is known as green chemistry. Green chemistry is a philosophical approach that is being applied to many areas of science and technology, and its practice is summarized by guidelines known as the “Twelve Principles of Green Chemistry” (see details at this website (http://openstaxcollege.org/l/16greenchem) ). One of the 12 principles is aimed specifically at maximizing the efficiency of processes for synthesizing chemical products. The atom economy of a process is a measureof this efficiency, defined as the percentage by mass of the final product of a synthesis relative to the masses of all the reactants used: atom economy = mass of product/mass of reactants × 100%Though the definition of atom economy at first glance appears very similar to that for percent yield, be aware that this property represents a…Doc X ← → C N Netflix Cos x Lapix M Inbc x X learn.canterbury.ac.uk/ultra/courses/_19016_1/outline/edit/document/_3537021_1?courseld=_19016_1&view=content The X Satu X Buy X a Ama X C Sho x X Gwha x o Ema X Intro X Cat X alculato "maxl ▸ (35 x ₁₁ G how x + F 8. A particular enzyme at a research facility is being studied by a group of graduate students. This enzyme has a Km value of 5.0 X 106 M. The students study this enzyme with an initial substrate concentration of 0.055 M. At one minute, 7 µM of product was made. What is the Vmax? 30
- (a) Read the following description of the element zinc andindicate which are physical properties and which are chemicalproperties.Zinc melts at 420 °C. When zinc granules are added to dilutesulfuric acid, hydrogen is given off and the metal dissolves.Zinc has a hardness on the Mohs scale of 2.5 and a density of7.13 g>cm3 at 25 °C. It reacts slowly with oxygen gas at elevatedtemperatures to form zinc oxide, ZnO.(a) Read the following description of the element zinc andindicate which are physical properties and which are chemicalproperties. Zinc melts at 420 °C. When zinc granules are added to dilutesulfuric acid, hydrogen is given off and the metal dissolves.Zinc has a hardness on the Mohs scale of 2.5 and a density of7.13 g>cm3 at 25 °C. It reacts slowly with oxygen gas at elevatedtemperatures to form zinc oxide, ZnO. (b) Which properties of zinc can you describe from thephoto? Are these physical or chemical properties?Green Dragon Vineyards makes and sells wine in different size bottles. Decide whether each property of their wine bottles listed in the table below is extensive or intensive, if you can. If there's not enough information to decide, check the can't decide box. The average recommended serving size. The time it takes to pour out one serving of the wine. The time it takes to pour out all the wine in the bottle. extensive O intensive O (can't decide) O extensive O intensive O (can't decide) O extensive O Intensive O (can't decide) X ?