`NH2 1. 2. H20 i wh (2 eq) H2N OH of CI pyridine HO, 1. (excess) 2. H20 NH2 H2N-NH2 (1 eq) Hint: Molecular formula = C3HN2O2 D, pyridine

Q: 4/ ________ is isoelectronic with scandium. Sr2+ Mn5+ Mn4+ Mn4- Mn

A: ANS. MN+4

Q: 13 mass of solute: Incorrec

A:

Q: Question 4 What is the concentration of Cd- in a solution of Cd(OH)2 (Ksp = 2.5 x 10) with a pH of 1...

A:

Q: uestion 9 The reaction C»H4+H2- C>H6 has an activation energy of 181 kJ mol and k = 2.5x10 M's at 50...

A:

Q: I. Identify the functional group and write the IUPAC names of the following organic molecules. Br Br...

A: Name of the functional groups are as follows: 1. Ester  2. Aldehyde 3. Alcohol 4. Thiol  5. Alcohol ...

Q: Calculate osmotic pressure for 0.10 M Na3PO4 at 20°C

A: We have to predict the osmotic pressure.  

Q: provide the iupac name and molecular formula

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Q: r organic products a

A:

Q: Question 16 How many grams of Mg3(PO4)2 can dissolve in 500 mL of water given that Mg3(PO4)2 has a K...

A:

Q: く く く く Indicate whether each of the following relationships between gas variables is direct or inve...

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the numbe...

Q: 20.Deduce the structure of an unknown compound A, CeH14. Briefly, but clearly explain your rationale...

A:

Q: The chemical formula for sodium bromide is NaBr. A chemist measured the amount of sodium bromide pro...

A: Concept :  Number of moles = mass of the given substance/ molar mass of the given substance.  It's S...

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A: Solubility factors

Q: please complete the table (volume, dilution factor, concentration of glucose) 2. what is the concent...

A: 1) Preparation of Standard solutions with different dilution factors      Standard-1:               ...

Q: Show the complete reaction in the synthesis of the precursor amide in the synthesis of sulfanilamide

A: Organic reactions are those in which organic reactant react with each other form organic products in...

Q: Consider a first order reaction AB → A + B If the reaction is 34% complete at the end of 39 s, what ...

A:

Q: Glucose in stored in the body as glycogen.  Consider the oxidation reaction for glucose with oxygen...

A: Oxidation reaction for glucose with oxygen is ., C6H12O6 + O2 = CO2 + H2O Balance Oxidation reaction...

Q: ulate K for

A:

Q: If you have multiple analytical balances to use during a lab, why do you think it is important to us...

A: Because our analytical balance is calibrated according to your needs so if we use different analytic...

Q: SOLID LIQUID GAS EFINITE SHAPE AND VOLUME AVERAGE LEVEL OF KINETIC ENERGY MOLECULES ARE IN CONSTANTL...

A:

Q: Comment on the general features of the predicted (extremely simplified) 1H-NMR spectrum of lycopene ...

A: 1H NMR analysis:

Q: Given the reaction: NO2(g) NO(g) + O2(g) (H = +62 Kj), if the temperature is increased, the formati...

A: Given ;- NO2(g) <-----> NO(g) + O2(g)  H = +62 kJ  statement : if the temperature is increased...

Q: Suppose you have an 8-hour ozone value of 0.088 ppm, and a PM2.5 value of 35.7 pg/m3. The AQI value ...

A: AQI stands for Air Quality Index which serves as a means to measure the extent of Air Pollution.

Q: the pressure of No

A:

Q: The measured pH of 0.100 M HCl at 25 degrees C is 1.092. From this information, calculate the activi...

A: pH of 0.100 M HCl = 1.092                          pH = - log aH+         Activity of H+ = 10-1.092 ...

Q: SOLID LIQUID Arrangement of particles Movement of particles Forces between particles Spaces in betwe...

A:

Q: Describe the formation of heavier elements during stars' formation and evolutions; Give at least 10 ...

A: Introduction :  An element is a group of atoms which have same number of protons, in pure form they ...

Q: 1.) What volume in mL of 0.220 M HBr solution is required to produce 0.0185 moles of HBr?

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

Q: A certain reaction has an enthalpy of Δ?=39 kJ and an activation energy of ?a=56 kJ. What is the ac...

A: Thermodynamics is branch of chemistry in which we deal with heat gain or heat  lost by system to sur...

Q: Complete the reaction, balance, and give the molecular, total ionic, and net ionic equations for: so...

A:

Q: `NH2 `OH А. В. С. D. 2000 1000 Waenumere m1) Ignore the peaks above O Wavenumbers em 4000 2500 2000 ...

A: IR provides the information of functional groups of unknown compound.  

Q: CH,CH,CH,-OH Draw the structure of the product expected when each of the following alcohols is react...

A: All the reactions of alcohol given in the question are dehydrogenation reactions.

Q: C. PARAFFIN 1. Place a paraffin about the size of a rice grain in a dry test tube. Warm gently and a...

A: Paraffin is a petroleum product. It is a highly branched saturated hydrocarbon of alkane class. So, ...

Q: r the observation that only the ortho-isomer appeared in the distillate and not the para isomer.

A:

Q: A 250 mL solution of 2.5 x 10 M AGNO3 is mixed with 150 mL of 5 x 10 M Na 3PO4- What is the value of...

A: Ans. (a) Value of Q (reaction quotient): The given compounds' reaction is 3AgNO3+Na3PO4 → Ag3PO4+3Na...

Q: 4) Draw the correct structures for the following: phenol meta-nitrophenol nitronium cation para- nit...

A: Answer - 4  To draw the structure for the given Compound :- 

Q: What NaCl concentration results when 219 mL of a 0.860 M NaCl solution is mixed with 442 mL of a 0.2...

A: First calculate the number of moles. Then Total Volume calculate. Final concentration of mixing of N...

Q: n [OH']

A:

Q: A 0.125 M solution of HNO2 has a pH = 2.08. What is Ka for HNO2?

A: Answer) HNO2 is weak acid . When we dissolved it in water it give H+ ions. It does not dissolve comp...

Q: What is the oxidation number of the monoatomic ions of the following elements? Drag each item to the...

A: As given , to know the oxidation state of the ion, we would determine its charge.  The charge of ion...

Q: For the chemical equation SO, (g) + NO,(g) = SO,(g)+NO(g) the equilibrium constant at a certain temp...

A: Equilibrium constant = [Product] / [Reactant]     

Q: Lycopene is non-polar. Explain why? Lycopene is coloured. Comment on the feature in its structure t...

A: Lycopene is an organic compound with chemical formula C40H56 usually found in tomatoes. It is  brigh...

Q: Fe(s) + CuSO4(aq) → FeSO4(aq) + Cu(s) a) Provide the formula for the species that is being reduced. ...

A:

Q: Sodium reacts with oxygen to produce sodium oxide in a synthesis reaction. A chemist needs to produc...

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Q: An ice cube has a mass of 4.0 g. You add 150., mL of hot water (90.0°C) to the ice cube. The water c...

A: When hot water is added to ice cube then the heat released by hot water will be absorbed by the ice ...

Q: 8. Name these compounds

A:

Q: gamma ray photons with a wavelength of 2.54 x 10^-5nm express the energy numerically in kilojoules p...

A:

Q: 1.0 g of a mixture containing 80% CuSO4.5H2O is taken and heated to 120 oC and 160 oC. According to ...

A: Solution ==                          Given that    1.0 g of a mixture containing 80% CuSO4.5H2O  a) ...

Q: Given the following organic compound, what type of polymer is being shown in the diagram and how man...

A: Here, an compound is given have to determine the type of bonding in the compound and how many bond b...

Q: by your instructor. Calculations 4. Calculate the mass of the hydrate (2 - 1) 5 Calculate the mass o...

A:

Photochemistry

Photochemistry is the part of chemistry that studies the various mechanisms of reactions that are triggered by the presence of light energy. It also helps to study the changes involved in a molecule that can undergo the absorption of radiation.