How many kilograms of water is needed to prepare 7.12 molal of solution using 23.0 g KNO2? The molar mass of KNO2 IS 101.10 g/mol.

Q: A standardized iodine solution is used to titrate hydrazine sulfate in a sodium bicarbonate- buffere...

A: A question based on concentration terms that is to be accomplished.

Q: 32.0 g of the salt Ce(SO4)2. 2(NH4)2 SO4. 2H2O is dissolved in 500 mL of solution. Calculate (a) the...

A: Weight of Ce(SO4)2. 2(NH4)2 SO4. 2H2O  = 32.0 g Molecular weight of Ce(SO4)2 = 632 g/mol number of m...

Q: What are the components of the buffer solution when 0.20 mol H3PO4 is mixed with 0.30 mol of the bas...

A: Here we have to choose the correct components of the buffer solution, when 0.2O mol H3PO4 is mixed w...

Q: 3H2 + N2 → 2NH3 a. If you have 3.5moles of hydrogen and 5 moles of nitrogen to produce ammonia, whi...

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Q: 8 g of potassium chloride is dissolved in a quart of distilled water. Calculate the pH value of the ...

A: pH is the negative logarithm of the hydrogen ion concentration. It is a measure of acidity or alkali...

Q: Question 42 The disaccharide shown is composed of two units of D-glucose joined with a B (1->6) link...

A: True; The disaccharide shown here does have beta(1->6) glycosidic linkage

Q: A neutral atom has the following electron configuration: 1s 2s 2p°3s²3p' How many electrons does the...

A: A neutral atom is the atom carrying no charge. It will become an ion after losing and gaining electr...

Q: Match the pair of monosaccharides that exhibit the type of isomerism being described per item. Enant...

A: To match the pair of monosaccharides with the isomerism they exhibit.  

Q: 4. A 112 pound woman is wearing high heeled shoes with an area of 0.18 square inches. What pressure ...

A: In multiple questions, we solve only first question according to Bartleby guidelines. Use relation b...

Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 6....

A: Given: Mass of water = 6.20 Kg = 6200 g. Initial temperature of water = 30.8 oC And the amount of he...

Q: Assuming you start with 1.25 g of pure aluminum, calculate the following: 1) The amount of potassium...

A: Mass of Al = 1.25 g 

Q: Describe the differences between between eukaryotic from prokaryotic cell

A: Prokaryotic cell is (bacteria)... Eukaryotic cell is (plants, fungii)...

Q: Giorno Giovanna measured the mass of a product in order to calculate the amount of analyte present i...

A: For qualitative analysis different methods like Gravimetric method, Electroanalytical method, Spectr...

Q: pH

A:

Q: Why and how does molecular geometry affect polarity and also solubility? Please explain thoroughly.

A: Molecular geometry determine the polarity and the polarity determines the solubility of a compound. ...

Q: One of relatively few reactions that takes place directly between two sollds at room temperature is ...

A: For a balanced reaction number of atoms of each element must be equal on both sides.   Given :  Mass...

Q: A 0.355 L soft drink contains 45.5 g of sucrose, which has a molecular weight of 342.3 g/mol. What i...

A: Given that, Volume = 0.355 L  Mass of Sucrose = 45.5 g  Molar mass or Molecular weight of Sucrose = ...

Q: 1.Tin tetrachloride is formed a metal and a non metal but is molecular in nature. EXPLAIN why sncl4 ...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: Which one of the following molecular formulas is also an empirical formula? C,H,0, A) C,H,SO В) H,O,...

A:

Q: A. Classify the following molecules as polar or non-polar (write below the chemical formula in the f...

A: When there is a electronegativity difference between two participating atom in a molecule, then pola...

Q: If Jotaro Kujo measured the amount of current that passes through a sample to measure the amount of ...

A: Volumetric method is used to determine the the amount of substance by measuring the volume of analyt...

Q: (d) The figure below represents an FCC structure. Determine: i. The relationship between the lattice...

A: Face centred cubic structure can be defined as  the structure in which atoms are present at corners ...

Q: free draw appropriate balanced equations of the following functional groups: halogenoalkane, seconda...

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Q: Gaseous ammonia chemically reacts with oxygen gas to produce nitrogen monoxide gas and water vapor. ...

A: Ammonia reacts with oxygen to form nitrogen monoxide and water. The equation for the balanced chemic...

Q: radical polymeriza

A:

Q: It is possible to guess the type of salt, acidic or alkaline, based on

A: Alkaline solution means solution is basic. Solution is made up of solute and solvent. Alkaline solut...

Q: Arrange the following solids in order of increasing melting points and account for the order. a. Naf...

A: Melting point of a substance can be defined as the temperature at which a solid substance convert in...

Q: Draw a D-glucose structure and identify the pyran ring. Also, draw a D-fructose and identify the fur...

A: Concept - Glucose and Fructose are monosaccharides. There are many ways to represent the formula- 1)...

Q: d) Recycling of polymer films is a major challenge due to structure. Would a LLDPE film made from a ...

A: LLDPE film made from a conventional Ziegler-Natta catalyst or one made from a metallocene catalyst i...

Q: An unknown compound has the following chemical formula: P,S where x stands for a whole number. Measu...

A:

Q: Calculate the pH value of the resulting solution by titrating 0.1 molar ammonium hydroxide 100 ml wi...

A: Given,  [NH4OH] = 0.1 M  Volume of NH4OH = 100 mL  [HCl] = 0.1 M  Volume of HCl = 20 mL  Base dissoc...

Q: Higher Rf value will be obtained from dextrin than that of glucose in a reverse-phase TLC.

A:

Q: ronsted-Lowry base

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: Which of the following combination can be used to prepare a buffer with a pH of 7? са NaHCOз and Naz...

A:

Q: In diluting acid solution, which of the following statements are correct? I. Add the acid into disti...

A: When water is added to acid, a concentrated solution of acid is formed in the starting and it's an e...

Q: (c) A metal has six naturally occurring isotopes. The isotopes, their fractions, and their atomic we...

A: isotopes are elements which have same atomic number but different mass number. Here we are required ...

Q: Hi! Can you help me with these?  Assignment: Balance these problems and find the percentage of it. ...

A:

Q: Direction: Relate the properties of liquids to intermolecular forces. Tell whether each property exh...

A: The solutions are as follows

Q: 3. Predict the shift in the following equilibrium system resulting from each of the following change...

A: According to Le Chatleirs principle, increase or decrease in concentration of reactant or products w...

Q: Carbon dioxide (CO2) is the gas that is mainly responsible for global warming (the greenhouse effect...

A: C6H12O6 + 6 O2 ---------> 6 CO2 + 6 H2O Each person consumes 4.69x102 g of glucose per day World ...

Q: In case carbonate is found in sodium hydroxide solution, what should be added to remove it?

A: Both compounds are bases so there will not be any reaction between them. About the only thing that h...

Q: H H3C, „H H YCH2CH3 ČH3 A

A:

Q: (Based on 7.6.33. from the book) The method of carbon dating makes use of the fact that all living o...

A:

Q: HO H. NH2 H. HO, H2N Cephradine Cephalexin

A: R-S nomenclature: R-S nomenclature is used to determine the stereochemistry of chiral carbons of a m...

Q: The acidity function of a solution that is produced when 20 ml of 0.1 M acetic acid is mixed with 0....

A: Concentration of 20 mL acetic acid = 0.1 M Concentration of 5 mL potassium hydroxide = 0.5 M Since K...

Q: In each case below, draw a Newman projection as viewed from the angle indicated:

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Q: A Bronsted-Lowry base is capable of donating a proton.  True  False

A:

Q: B. Determine the following: Pm, P, Pm, Xa, m, and M if 107.125 grams NaOH is dissolved in 480 mL of ...

A: Mass of solute , NaOH = 107.125 g

Q: Ammonia is produced from the reaction of nitrogen and hydrogen according to the following balanced e...

A:

Q: A neutral atom has the following electron configuration: 1s25°2p° What is the chemical symbol for th...

A: Electronic configuration  is given         1s22s22p5 The total number of electron is 5+2+2= 9 electr...