Using significant figure rules, the answer of 213 miles / 4.2 hours is equal to which of the following? * 50.7 miles/ hr 51 miles/ hr 50.71 miles/ hr 5.0 x 10^1 miles/ hr

Q: Resolve the concentration of 10 mL of  0.1 N hydrochloric acid accidentally added with 90 mL of dist...

A: Volume of initial solution = 10 ml  Normality of initial solution  = 0.1 N  New volume of distilled ...

Q: What is the molality of a solution containing 75.5 g sucrose in 400 g water? Show your solution.

A:

Q: N2 (9) + 3H2 (g) = 2NH3 (g) PNH3 = 5.8 x 10-2 atm %3D PN2 8.2 x 10-1 atm %3D PH, = %3D 2.2 × 10 atm ...

A: Given : We have to calculate the Kp

Q: Flame test is an example of whatb type of atomic spectroscopy? Emmsion O Absorption O Fluorescence P...

A:

Q: a. Which glycogen metabolism enzyme has an intermediate of the form presented below CH,OPO, H OH H O...

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Q: Which of the two directly affect the intensity of the IR signal? i. Whether the signal is casued by ...

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Q: tert-butyl chloride (2-chloro-2-methylpropane) from tert- butyl alcohol (tert-butanol) using an acid...

A: The answer is as follows:  

Q: Which is true regarding the compound C12H22011 (lactose)? O it is ionic and held together by opposit...

A: A covalent or molecular bond is formed with the sharing of electrons.

Q: NO + NAOH → NaNO2 + H20 + N20 45 grams of nitrogen monoxide (NO) react with an excess of sodium hydr...

A: The reaction given is, => NO + NaOH → NaNO2 + H2O + N2O Given: Mass of NO reacting = 45 g. And ma...

Q: Which of the following statements is NOT true about Fermi Resonance? O It results from coupling of a...

A: A question based on IR spectroscopy that is to be accomplished.

Q: Given the spectra, 100 95 90 80 70 4000 3000 2000 1000 Wavenumbers (cm) O Toluene 4-Heptanone Pentan...

A:

Q: At 25.0 °C the Henry's Law constant for helium (He) gas in water is 3.7 × 10¯*M/atm. Calculate the m...

A: Given - - > KH = 3.7*10-4 M/atm V = 1425 ml = 1.425 L P = 3.71 atm

Q: Flame test is an example of whatb type of atomic spectroscopy?     Emmsion     Absorption     ...

A:

Q: Consider the following reaction where K, = 83.3 at 500K. PCI3(g) + Cl2(g) PCI5(g) A reaction mixture...

A: Here from the given information we have to predict the direction of equilibrium reaction . For this ...

Q: Select the functional group that is present in the following molecule (select best answer). O Alkene...

A: In organic chemistry, the hydrocarbon containing carbon-carbon single bond, double bond and triple b...

Q: A) FeCl3 CH-CH3 + HCI ČH3 + B) FeCl3 + HCI CH3-C=C-CH2-CH2 –CH3 + H2 Pt, Pd, or Ni C)

A:

Q: Show complete calculations for the pH of a 0.105M solution of ammonium chloride. The Kb for ammonia ...

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Q: why is the synthesis of NH4BF4 conducted under acidic conditions?

A: The synthesis of NH4BF4 conducted under acidic conditions as follows,

Q: The following data represented the concentration of ofloxacin present in chicken meat samples: 4.17,...

A:  Percentage relative standard deviation is given by formula  % relative SD =(standard deviation / me...

Q: Using the figure, which part shows equilibrium between ALL phases of matter (solid, liquid, and gas)...

A:

Q: no reaction. A diene trand in nakere, it will not undorgo diela aldri reaction.

A: Here we have to determine the starting material required to prepare the given adduct. We can solve t...

Q: Part III. Draw the structure of the following organic compounds. 1. 6-ethyl-2-octyne 2. 4-ethyl-2,3-...

A: It is very important to assign correct position of the substituents mentioned while drawing structur...

Q: 55.0 grams of aluminum powder is mixed with 75.0 grams of ferric oxide, which of the two substances ...

A: In Aluminium thermite process Al acts as a reducing agent, it can reduce metal from metal oxide.

Q: lce the table of substances and their solubilities in water to answer the following questions: subst...

A: Separation of mixtures based on their solubilities

Q: Claim: What makes chomical bonding he same wih real-fe sanuations? State your answer in one (1) sent...

A: Claim :- Personal nature and forming relationships with others.    Evidence :- 1.This is what causes...

Q: 4. The reaction 2NO (g) + 2H2 (g) N2 (g) + 2H;O (g) is found experimentally to be second order in NO...

A:   Since you have posted a question with multiple subparts, we will solve first three subparts for yo...

Q: Based on the given data, what is the λmax of copper?   0.1 M Copper 300 0.157 325 0.233 350 0.465 3...

A: The correct answer is:  

Q: A solution was prepared by mixing benzene (C6 H6 ) and carbon tetrachloride (CCL4 ). Given that the ...

A: Given that, Mole fraction of benzene= 0.0852 Moles of C6H6= 0.690 mol  Moles of CCl4= ?

Q: What is the molar absorptivity of cobalt at λmax of copper?

A: The data given is,

Q: Copper Amax cobalt|Amax copp oncentration, mM 20.00 40.00 60.00 0.177 0.382 0.518 0.2 0.4 0.7 80.00 ...

A: Given : We have to calculate the concentration of cobalt and copper.

Q: A student prepared an equilibrium system using Fe(NO3)3 and KSCN, which reacted to produce iron(III)...

A:

Q: Solve the standard entalphies of the following and determine wether the reaction is endothermic or e...

A: 2NH3(g) + 3N2O(g) -----> 4N2(g) + 3H2O(l) CaCO3(s) -------> CaO(s) + CO2(g)  C(graphite) + O2(...

Q: 203.77 miles/sec is converted to cm/nsec

A:

Q: What is the concentration of cobalt in mM?

A: The data given is,

Q: 4. Propose a structure(s) for the product(s) of the following reactions. O,N. HO NaH H2SO4, HNO3 H2S...

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Q: reflies flash at a rate that depends on the temperature. At 43°C, the average rate is 3.4 flashes ev...

A: Given : We have to calculate the activation energy .

Q: The iodination of salicylamide was carried out analogous to Experiment 12 in your “Green Organic Che...

A: Increase in chemical shifts suggest that the proton is deshielded. Hydrogen bond interaction is one ...

Q: What is the molar absorptivity of cobalt at λmax of cobalt?

A: The data given is,

Q: Give systematic names for the compounds a.) b.) and c.) please

A: The IUPAC name of the compound can be written on the basis of the number of carbon atoms in the main...

Q: Sample.sakulatim Show your work for the following caleulations uning data from sample E a) Initial s...

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Q: A 50.0 mL juice extract is colorimetrically assayed using Nelson’s test. One milliliter (1.00 mL) of...

A: Given: 50 mL of original juice is used. 1 mL of the original solution is used to give absorbance of ...

Q: Find the volume in mL of an object that has a density of 10.2 g/L and a mass of 30.0 kg.

A: Density is the ratio of mass and volume. Given density = 10.2 g/L  mass = 30.0 kg

Q: Which results in a buffer?  Select all apply. a solution of NaOH(aq) and a solution of HCl(aq) in w...

A: Given : We have to tell which of the following will be buffer.

Q: Ethyl chloride, CH3CH2Cl, used to produce tetraethyllead gasoline additive, decomposes when heated t...

A: The given reaction is : CH3CH2Cl(g)  →  C2H4(g) + HCl(g) The reaction is first order. The initial co...

Q: Consider the equilibrium system described by the chemical reaction below, which has a value of Kc eq...

A: The given reaction is : Kc for the reaction = 7.1 x 10-4

Q: A solution of table sugar in water contains 5.25% by mass sucrose. Calculate: a)the mass of sucrose ...

A: To find out mass of sucrose first check mass in 5.25% solution. Use that relation to find mass of su...

Q: Determine the AH for the overall reaction based on the three-step thermochemical processes below: AH...

A: The steps of the reaction given are,  

Q: Give the major organic product(s) for each of the following reactions. Write NR if a reaction will n...

A: Amide and acyl chloride are electrophilic in nature and undergo nucleophilic addition reaction 

Q: e rate constant a

A:

Q: Use the Bohr model to calculate allowed energy levels of one-electron atoms Is there an energy level...

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.