1. What is the percent, by mass, of chromium in KCrO4? a. 26,776 % b. 31.763 % c. 40.268 % d. 42.241 % e. 51.996 %

Q: LOH CH3 - v A A. 1- HIGHEST BOILING POINT V B B. 5 - LOWEST BOILING POINT C.4 D.2 V E E. 3

A: Boiling point is directly proportional to intermolecular forces of attraction as well as the molecul...

Q: - of Ke for

A:

Q: Identify the molecules or ions below as Lewis acids, Lewis bases, or neither. If there is more than ...

A: According to Lewis acid base theory, any species that can accept one or more lone pair of electrons ...

Q: ie vapor pressure a

A:

Q: as Lewis acids, Lewis bases, or

A:

Q: volume

A:

Q: Write defect reactions for FeO and NiO. What oxide would form from each of the defect reactions?

A: Solid defects are of three types: 1. Stoichiometric defects 2. Non-stoichiometric defects 3. Impurit...

Q: xample 8 Calculate the corrosion rate in mpy of Al specimen (5 cm?) immersion in aqueou days, given ...

A: Area = 5 cm2  Time = 2 days  1 day = 24 hour  2 days = 48 hour 

Q: complete ionic equation for A. 3CaCl2(aq)+2Na3PO4

A:

Q: 2. Assign priorities to the groups on this chiral carbon. Label it as R or S. QH H - ÓCH3

A: We have to assign the priorities to the groups on the chiral carbon and label it as R or S.  

Q: 1. How many MOLES of dinitrogen monoxide are present in 1.90 grams of this compound ? moles. 2. How ...

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to ...

Q: What is An for the following equation in relating Ko to Kp ? C3H3 (9) + 502(g) = 3CO2 (g) + 4H2O() 3...

A:

Q: What is the pOH of a solution that has ​[OH^-] = 2.7E-4 M

A: pOH can be expressed as -log[OH-]. It is used to represent basicity of a solution. If the pOH value ...

Q: Hydrogen gas has been suggested as a clean fuel because it produces only water vapor when it burns. ...

A:

Q: conjugate base

A:

Q: Describe how you would prepare 100 m L of a solution that is 22 % acetic acid by volume .

A: We have to mix acetic acid in some solvent.

Q: Use the graph below as reference: What is the composition of the distillate of 55% cyclohexane dist...

A:

Q: The freezing pt. of a solution containing 65g of a compound in 100g benzene is 3.8 degree celcius. w...

A: The depression in freezing point is directly proportional to the molality of the solution. ∆Tf direc...

Q: E2B.3(a) The constant-pressure heat capacity of a sample of a perfect gas was found to vary with tem...

A:

Q: 19. Provide a complete curved arrow mechanisms that accounts for the transformation below. Be sure t...

A: At first double bond take H+,possible formation of two carbocation one is 2 degree and another is 1 ...

Q: Which of the following would be classified as an electrophile? > View Avallable Hint(s) CH, B. CH, C...

A: Electrophiles are the species that are deficient of electrons and can accept electrons (Lewis acids)...

Q: Need help

A: This is what we call ' Weighing by Difference', which is the most accurate method to measure quantit...

Q: 1. Consider this compound: CH;CH2CHCH2CHCH2CH3 ČH3 a) How many chiral carbons does this compound hav...

A:

Q: Elemental phosphorus occurs as tetratomic molecules, P4. What mass of chlorine gas is needed to reac...

A: Phosphorus reacts with chlorine to form phosphorus pentachloride. The equation for the balanced chem...

Q: A sample of meat scrap weighing 2.000 g is digested with concentrated sulfuric acid and a catalyst. ...

A: The excess 0.6700 N  H2SO4  requires to neutralize NaOH. The volume of 0.6700 N H2SO4  requires can ...

Q: 1. Which of the following isn't an example of an oxidation-reduction reaction? (a) CasP2(s) + 6 H2O(...

A:  

Q: On the left side, why is the fluorine prioritized more than the two carbons? Don't two carbons' atom...

A:

Q: Complete the table by drawing Lewis structures for the following molecules/ions and specifying their...

A: Formula for determining the hybridization of central atom :-  x= (V+M-C+A)/2  V = valence electrons ...

Q: [OH–

A:

Q: The acid HOCI (hypochlorous acid) is produced by bubbling chlorine gas through a suspension of solid...

A: The correct expression of equilibrium constant is given below

Q: OH Spell out the full name of the compound. 4-chloro-3-el-hylcyclohex-1-ol

A:

Q: 2. Predict the product for each condensation below (a) (b) EtONa Chemical Formula: C3H1205 (c) EtONa...

A:

Q: Consider the equilibrium system described by the chemical reaction below. A 2.00 L reaction vessel w...

A: Equilibrium is a condition in which both the reactants and products are present in equal concentrati...

Q: A new temperature scale, know as the Ungoogable (U) scale is related to Fahrenheit (F) in this way: ...

A:

Q: 1. Convert the following: a) 120 g mol of NaCl to g. b) 120 g of NaCl to g mol. c) 120 lb mol of NaC...

A: For this problem we have to convert units., 

Q: ion 18 of 20 Consider the Diels-Alder reaction shown. Draw the structures of the diene and dienophil...

A: The correct answer is given below

Q: Choose three different C-C disconnections for this ketoester and write out the structures of the sta...

A: Retrosynthesis is the process of "deconstructing" a target molecule into starting material. 

Q: \A student calculated that the average neutralizing power of their antacid was 102 grams of acid neu...

A: Given, The average neutralizing power of their antacid was 102 grams of acid neutralized per gram of...

Q: Why is the baking soda and vingear separate when they mix?Why did the circumference of the balloon d...

A:  baking soda and vinegar balloon experiment

Q: Write a balanced equation for the following by inserting the correct coefficients. If the coefficien...

A: • The given unbalanced chemical equation is,      CaSiO3(s) + HF(g) →                      SiF4(g) +...

Q: Sodium hypochlorite (NaOCl, the active ingredient of all bleaches) was dissolved in a solution buffe...

A: pH of buffer solution is calculated by using Henderson Hassel balch equation

Q: For the Diels-Alder reaction, identify the diene, the dienophile, and the Diels-Alder adduct. H3CO. ...

A: A diene is an organic compound, especially a hydrocarbon, containing two conjugated double bonds whi...

Q: A compound with a conjugate base that is more stable because of electron delocalization or resonance...

A: No, it is a false statement. right statement is- A compound with a conjugate base that is more stabl...

Q: which aqueous solution will have the lowest freezing point

A: Ionic aqueous electrolyte solutions have the lowest freezing point. The freezing point is a colligat...

Q: Draw the structure of the following compounds. Use line-angle structural formula. 5-chloro-1-ethylsp...

A: Given, The name of the molecules : 5-chloro-1-ethylspiro[2.5]octane * 1-bromo-4-ethyl-5-methyl...

Q: Determine the value of the equilibrium constant, Kgoal, for the reaction N2(g) + O2(g) + H2 (g) = ¿N...

A: Calculate the value of Kgoal by using above reaction ---

Q: The C-O absorption in carboxylic acids appears around 1250 cm 1. The C-O absorption in an alcohol ap...

A:

Q: Calculate the "Third Law" entropy of CCl4 gas at 200 °C from the following data for CCI4- o S'298(li...

A:

Q: Protons passing through ATP synthase make it rotate Kinetic energy of protons is used to power phosp...

A: According to the question, we need to determine the wrong statement.  We know that: 1. Protons flow ...

Q: Indicate whether each structure is aromatic, nonaromatic, or antiaromatic. Assume planarity. C BH Co...

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.