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You are watching: How many oxygen atoms are in 3.90 g of quartz?


Q: LAIH4CENCENDIBALC NMgBr>THF(Solven)OLit eYO(LDA)YCH3ICH3ITo- NoeCl2NH2Hcl /H2002)...

A: Product of the reaction has to be identified.(a)Reduction: Nitriles undergoing reduction by using Li...


Q: 2evHHOH2S04HHOleg+2 eaOLDA/-78°C

A: Aldol condensation:Aldehyde or a ketone under basic or acidic conditions forms β-hydroxy aldehyde or...


Q: how do you complete theoretical yield for experiment of benzil where we combined together benzoin, n...

A: Benzoin reacts with nitric acid to form benzil. Theoretical yield of benzyl can be determined by fol...


Q: According to the following equation, how many moles of carbon dioxide are produced by completely com...

A: The balanced chemical reaction is shown in equation (1).According to balanced chemical equation 1 mo...


Q: baProvide the major organic product of the reaction below.3.1. Mg, ether2. CH,CH,CH,CHо3. Н,о*

A: Grignard reaction:It is an organometallic reaction in which alkyl, vinyl or aryl-magnesium halides r...


Q: When making a graph to compare the results of distillation experiment of # drops and temperature. Sh...

A: One records the temperature of distillate as soon as the first drop is collected and every several d...


Q: 5. Write a flow chart to show how you could separate the following pairs of compounds by using acid-...

A: Step1:By using acid base extraction, from a given mixture separation of pure compounds depends on th...


Q: For the reactionCaCO3(s)CaO(s)+ CO2(g)H° = 178 kJ and S° = 161 J/KThe equilibrium constant, K, would...

A: Consider the reversible reaction in which calcium carbonate decomposes into calcium oxide and carbon...


Q: Why is the formation of iron hydroxide, Fe(OH)2, from Fe2+ and OH- not considered a REDOX reaction?...

A: Redox reaction is a kind of chemical reaction in which transfer of electrons occurs between two chem...


Q: Pleasethe follawa CompondsSynthesizetram benzeneNotc A Friedel -Crafts alky la tro wont werrear...

A: The synthesis of 4-chloro toluene involves two reaction, first Friedel-Crafts alkylation and then ha...


Q: State 2 differences between SN1 and SN2 reaction? Give an example of each.

A: Substitution reactions are those reactions which involve substitution of a group with another. If th...


Q: Choose the answer that has the appropriate acid and base that would make this neutralization reactio...

A: Given information,


Q: 4. Give the structures of the aldol products that form when each of the following compounds ormixtu...

A: Hey, since there are subpart questions posted, we will answer three subparts. If you want any specif...


Q: 3. Which type of electromagnetic radiation has the lowest frequency?a. microwavesb. visiblec. ult...

A: Gamma rays these have the most frequency but have the lowest wavelength.X rays have the 2nd highest ...


Q: Calculate the pH of a .05 M solution of HCl(aq)?

A: Generally, a strong acid fully dissolves, the concentration of equals to the (H3O+) conce...


Q: What proportion of the 14C present in Otzi's body when he died is still there today? When he died, i...

A: The half-life time of carbon-14 is about 5,730 years. Thus a sample that had 1/4 of its original pr...


Q: What would the concentration of H3O+ be if the concentration of OH- was 1 x 10-5 M? x ...

A: The relation between , and Kw is as given. Here Kw is the auto-ionization constant for w...


Q: In a battery, the following oxidation-reduction reactions are taking place: Mn2O3 + ZnO → 2MnO2 + Z...

A: Redox reactions include oxidation and reduction reactions occuring simultaneously. Reduction is said...


Q: The products of the combustion of acetone with oxygen are shown in the following equaTION: _CH3COCH3...

A: The given chemical equation is shown by the equation (1).The equation is not a balanced chemical equ...


Q: LA A#7 a) Briefly describe how you can tell whichlayer is the aqueous Phase after performain exth...

A: You can't tell just by looking at it, you need to know the density of the extraction solvent. If ins ...


Q: Can you please help me determine the σ framework and π MO Energy Diagram for this molecule?

A: The molecular orbitals are formed due to the mixing of the atomic orbitals of each of the atoms that...


Q: What number of mole and mass of silver oxide, Ag2O, is required to produce 17.85 g of silver sulfadi...

A: The given reaction shows that the reacting ratio of Ag2O to AgC10H9N4SO2 is 1:2.Find the number of m...


Q: The equilibrium constant, Kp, for the following reaction is 80×10-2at 698 K.2HI(g) H2(g) + I2(g) If...

A: Kp at 617 K for the given reaction can be determined using van't Hoff equation.


Q: I don't even know what lithium dicyclohexylcuprate looks like and I can't seem to find it on the int...

A: Acetophenone reacts with butyllithium to give vinyl alcohol.


Q: Identify the preferred site(s) of electrophilic attack on the following compound.3.CH2-0-ring 1r...

A: -CH2O- group present on the ring 1 is deactivating group whereas –OCH2- group is an activating group...


Q: what mass of insulin must be dissolved in 100.0mL of water to produce a solution with an oosmotic pr...

A: The osmotic pressure is one of the colligative properties of solutions which has influence on solute...


Q: 2. Provide the structure of the product which results from the base-catalyzed condensationfollowed ...

A: The base catalyzed condensation followed by dehydration between benzophenone and propanal is an aldo...


Q: 7. Provide the major organic product of the following reaction sequence.1. Mg2. CO23. H,0*, A-Br

A: Grignard Reaction is an organometallic reaction in which different alkyl, aryl-magnesium halides add...


Q: 8. An aqueous solution of hydroxylamine (NH2OH) has a concentration of 0.732 M. The Kp of hydroxylam...

A: Step 1-Kb is the base dissociation constant which describes how well a base dissociates in a solutio...


Q: A student determines the value of the equilibrium constant to be 62×10-18for the following reaction....

A: From the relationship between equilibrium constant (K) and ΔG0, it is clear that when the value of K...


Q: Solve for T1.P1V1/T1=P2V2/T2 and also...Solve for V2.P1V1/T1=P2V2/T2

A: T1 can be solved as shown.


Q: Fill in each blank with either "polar" or "nonpolar":In O3, the O-O bonds are ____________ covalent...

A: Covalent bonds are the chemical bonds which involves sharing of electrons between two atoms. The ato...


Q: Calculate the mass of urea that should be dissolved in 225 g of water at 35 degrees celsius to produ...

A: Colligative properties are those properties which depend only on the moles of solute.Addition of a n...


Q: What is the OH- concentration in a 7.5 x 10-3 M Ca(OH)2 solution?

A: Calculate the OH- concentration in a 7.5 x 10-3 M Ca(OH)2 solution.


Q: One Liter of buffer at pH of 4.30 contains 0.33 M of sodium benzoate and 0.26 M of benzoic acid. Wha...

A: A buffer solution refers to an aqueous solution in which that consists of a mixture of a mixture that ...


Q: How do I work and convert the problem 100 calories to joules

A: 1 cal is equal to 4.184 J.The conversion of 100 calories to joules is shown as follows:


Q: Project 2: Food Dye SpectroscopyWhich scale (percent transmittance or absorbance) is most useful fo...

A: The quantity of light which is absorbed by a given solution is expressed in terms of percentage tran...


Q: Indicate the pH for each of the following solutions. Express your answers as whole numbers.a. 1.0 ...

A: The pH of the solution is calculated from the hydrogen ion concentration by the following equation,


Q: If the caffeine concentration in a particular brand of soda is 2.91 mg/oz,2.91 mg/oz, drinking how m...

A: The caffeine concentration in the soda is 2.91 mg/oz. A single can has 12 oz.The amount of caffeine ...


Q: 2eoH H.HHSDarH2SO4HTHO2eaH legLDA/-78°CH

A: Aldol Condensation: An organic reaction in which enolate ion reacts with a carbonyl compound to form...


Q: Provide the major organic product of the reaction below.4.I. CH,CH,MgBr (2 eq)2. H0'

A: Grignard reagents react with acid chloride and gives tertiary alcohols. It gets added twice to acid...


Q: What is the molar solubility of silver carbonate (Ag2CO3) in water? The solubility product constant ...

A: Molar solubility is the number of moles of a substance that can be dissolved per litre of solution b...


Q: How to convert 6.7125558746858e+25 molecules of CO2 (carbon dioxide) to grams of oxygen?

A: First, convert the molecules into moles of carbon dioxide,


Q: Identify the major product(s) of the reaction sequence shown below.8.IICH3CCICЬFeChACЬ

A: The first reaction is Friedel-Craft acylation. Benzene in presence of AlCl3 reacts with acetyl chlor...


Q: 6. Determine the ionization energy for the hydrogen atom. The ionization energy is the energynecess...

A: Applying Bohr’s equation for the energy levels of hydrogen atom, the change in energy when an electr...


Q: If the RDA for vitamin C is 60. mg per day, and there are 70. mg of vitamin C per 100. g of oranges,...

A: The relation between oz. and g is as follows:1 oz. = 28.3495 gThus,3 oz. = 85.0485 gThe relation bet...


Q: uestions1. Why was sodium chloride added to the tea solution before extracting with ethyl acetate?...

A: Hey, since there are multiple questions posted, we will answer first question. If you want any speci...


Q: A student is given 1.525 g of pure CuO. To recover the Cu present in the compound, the dark powdery ...

A: CuO + 2 HCl ------> CuCl2 + H2O As per the balanced...


Q: How do we calculate the percent error for melting point for an experiment where we got a melting poi...

A: This problem can be solve using the formula shown below.


Q: According to valence bond theory, which orbitals overlap to form the bond in HBr 1. 2s on H and...

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A: The valence bond theory is used to describe the bonding which is present in organic molecules. In th...