How many moles are in 3.4x10^-7grams of silicon dioxide?

Q: 4. Predict the product(s) of the following reactions. NHCOPh o-methylphenol PH₂ fuming H₂SO4 HONO2 /…

A: The above given reactions are electrophilic  aromatic substitution reaction. The substitution…

Q: Balance the following reaction using oxidation numbers. vo(aq) + H* (aq) + Zn(s) vo²+ (aq) + H₂O()+…

A: In the given question we have to balance the following reaction using oxidation number,

Q: 17) Complete the following reaction by filling in the necessary reagents. You may not need all 5…

A: The conversion of the given alkene to the ketone involves the following steps.

Q: 2. Examine the two scenarios below. • Scenario A: 100 g of glucose in the presence of unlimited…

A: two condition are give , we have to tell in which condition more product is formed

Q: 7. Use bond enthalpy data from table 8.4 (chapter 8) to calculate the AH for the following reaction:…

A: Since, The standard enthalpy of the formation is defined as change of enthalpy of 1 mol of the…

Q: For each row in the table below, decide whether the pair of elements will form a molecular or ionic…

A: Ionic compounds: The compounds formed between a metal and non-metal are ionic compounds  Molecular…

Q: Explain the meaning of ‘Equilibrium lattice constant’.

A: Equilibrium lattice constant refers to the lattice constant of a crystal structure when the material…

Q: 3. As we have seen, hexane is nonpolar and if mixed with water would not dissolve. Instead two…

A: 3) Density is defyaa the ratio of mass to its volume.  Density= mass ÷ volume

Q: The image below contains a Michaelis Menten plot for an enzyme catalysed reaction. Based on this…

A: 1. Vmax= maximum velocity; the Highest point at Y-axis Vmax= 39 uM/sec

Q: The equilibrium constant, Kc, for the following reaction is 7.00 x 10-5 at 673 K. NH₂I(s) NH3(g) +…

A: Equilibrium constant Kc for a reaction is defined as the product of the molar concentrations of the…

Q: a. Using the information provided below, derive an expression to show that the energy of an…

A: The speed of light, c = λv, where λ is the wavelength and v is the frequency. From the equation E =…

Q: might dissolve at different times. Consider: • which day the least sugar dissolve in which day the…

A: When solute dissolves in a solution that process is called dissolution.  Rate of dissolution depends…

Q: A mixture is made up of at least two things they are called?

A: A mixture is a combination of two or more substances but they are not combined chemically. They can…

Q: A 326 g of C6H6 dissolve in 820 g of acetone. What is the molality? (MW C6H6 = 78.11)

A: “Since you have posted multiple questions, we will provide the solution  only to the first question…

Q: Predict if each of the following will increase or decrease the rate of an aldol (not ald…

A: To predict the decrease or increase in the rate of aldol reaction if: a. An additional substitution…

Q: 1. s) How many kilograms of sodium sulfate are necessary to weigh out 9.50 moles?

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

Q: 1. Please identify the compounds below that you would expect to be aromatic. Explain your reasoning.…

A:

Q: Write the Ka expression for 3-Methylhexanoic acid & N,N-diethyl-1-pentanamine?

A: The Ka expression denotes the equilibrium constant corresponding to the acid-dissociation…

Q: What is [H+] in a 0.270 M solution of acrylic acid, CH₂CHCOOH (Ka = 3.16 × 10-5)?

A:

Q: 6) The following experiment was carried out in a lab: Suppose 159 mL of a 1.9 M solution of…

A: Neutralization reactions are the type of reaction in which an acid is reacted to a base to form…

Q: A helium balloon takes up 4.35 liters of space. Your friend is showing off his new chemistry skills…

A: Dimensional analysis relates between physical quantities with the help of dimensions and units of…

Q: For the diprotic weak acid H₂A, K₁1 = 3.2 x 106 and K₁2 = 7.6 × 10-⁹ What is the pH of a 0.0800 M…

A:

Q: In each of the molecules drawn below one chemical bond is colored red. Decide whether this bond is…

A: To solve this problem we have to identify the polar bond and more negative atom .

Q: O Macmillan Learning The rate constant for this first-order reaction is 0.170 s¹ at 400 °C. A →…

A: Given, A -----> product Reaction follows first order kinetics. Rate constant (k) = 0.170 s-1…

Q: Suppose i want to manufacture 1 litter of Acid free shampoo for bike or car washing. Now what is the…

A: To manufacture 1 liter of acid-free shampoo for bike or car washing, you can use the following…

Q: Determine the mole fraction of CH3OH and H2O in a sol’n prepared by dissolving 5.8 g of alcohol in…

A:

Q: Consider a 23.5 g sample of the compound diphosphorus pentabromide Using the formula P.Br, determine…

A: Given, Chemical formula of diphosphorus pentabromide: P2Br5 Molar mass of diphosphorus pentabromide…

Q: What is the structure and name of the only aldehyde that can give a positive iodoform test?

A: When the aldehyde or ketone having CH3CO group reacts with iodine in presence of base like NaOH,…

Q: 1 A chemist carefully measures the amount of heat needed to raise the temperature of a 532.0 mg…

A: Given that: Mass of the substance is m = 532.0 mg = 0.532 g.…

Q: Provide the (i) IUPAC name, (ii) condensed formula and (ii) molecular formula for the following…

A: Since,Rule of IUPAC-1) Longest chain as parent chain.2) Numbering start from those side where more…

Q: 5. The formal charge on nitrogen in the structure shown below is? CH3 _C=N CH₂- A) +1 B) +2 C) 0 D)…

A: Formal charge on an atom is given by,

Q: 5. Show how to perform the following synthesis. n

A: The ozonolysis followed the conversion of carboxylic acid to acid chloride and Friedel-Crafts…

Q: 2. What type of chemical bonding is present in the following compound? CH3CH2CH2CH2Br| O a. A O b. B…

A: A molecule is said to be polar if it has net dipole moment. It is non polar if net dipole moment is…

Q: Provide the starting material for this synthesis: CI AIC13

A: The question involves electrophilic aromatic substitution reaction.  we need to identify the…

Q: uppose i want to prepare 1 litter(1000 gram's)  of bike and car washing shampoo, now what percentage…

A: The percentage of sodium bicarbonate and preservatives that you should use in a bike and car washing…

Q: 11. The reaction shown, which is important for the breakdown of polypeptides, would be favored under…

A: The question is based on the concept of organic reactions. we need to identify the conditions in…

Q: A balloon occupies a volume of 444 cm3 at 542 Torr and 19 oC. If the pressure is changed to 936…

A:

Q: Calculate the degree of dissociation (%) for a 0.10 M aqueous solution of hydrogen cyanide (HCN) at…

A:

Q: Photoelectron spectra were acquired from a sample of gaseous NO using He(I) radiation, which has…

A: GIVEN: Speed of photoelectrons = 1.982 x 106 m/s Mass of electron = 9.10938291 x 10-31 kg Energy…

Q: 6) KBr has a lattice energy of -692 kJ/mol and a hydration energy of -675 kJ/mol. Using this…

A:

Q: Name the major organic compound formed by the following reaction: OH KMnO4

A: In the given question we have to write the reaction mechanism of the following reaction to form…

Q: Identify how you would make hexylamine from 1-hexanol: A. t-BuOK OH The transformation above can be…

A:

Q: Identify the following unbalanced half reaction as either an oxidation or reduction for N. NH3 (aq)…

A: Oxidation reduction reaction (Redox reaction) It can be defined as the chemical reaction in which…

Q: 4. Which of the following Lewis structures is INCORRECT? A) B) G D) H + H. -H ["--" ] Ⓡ H H :0 -H

A:

Q: 6. Name the following molecules using IUPAC: a) b) d) OH OH f) НО. Br OH OH

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: 7. Optical Activity: (a) Calculate the specific rotation for Compound A, whose observed rotation was…

A:

Q: 1. How are each of the structures A-F related to structure X? They could be E (enantiomers), D…

A: ll

Q: A 10-liter [L] flask contains 1.3 moles [mol] of an ideal gas at a temperature of 20 degrees Celsius…

A:

Q: What is the pH of the buffer 0.12 M Na₂HPO4/0.21 M KH₂PO4?

A:

Q: A Chem 1225 student needed 28.5 mL of potassium hydroxide solution that she prepared to titrate…

A: Given, Note: formula of KHP (Potassium hydrogen phthalate: KHC8H4O4 mass of KHP = 0.294 g Volume of…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.