How many moles are present in 258.6 grams of magnesium oxalate, MGC204?

Q: The detonation of nitroglycerin proceeds as follows: 4 C3H5N3O9(l) → 12 CO2(g) + 6 N2(g) + O2(g) + 1...

A: Given :- Given mass of Nitroglycerin =4.5 gram Volume of nitroglycerin = 2 ml Density of nitroglycer...

Q: Mixing water and arterial fluid in the reservoir of the machine is called secondary dilution.  True...

A: mixture of arterial fluid  with water and /or supplemental fluids is called primary dilution.   

Q: Ammonium perchlorate (NH,clo,) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts wi...

A: Ammonium perchlorate decomposes into nitrogen, chlorine, oxygen, and water. The equation for the bal...

Q: Answer the worksheet below, Draw the Lewis structure of the lonic compounds listed. Naz0 Boron oxide...

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Q: Select the group with the highest IUPAC priority.. (a) -CHCI2 -CH2B (c) -CH2CH2I

A: The priority of the groups depend on the atomic number of the elements present in it .

Q: How many formula units are in 108.65g of aluminum sulfate?

A: Given data, mass of Al2(SO4)3 = 108.65 g  molar mass of Al2(SO4)3 = 342.15 g mol-1  no. of formula u...

Q: initial change equilibrium

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Q: For a single-component system, the fundamental thermodynamic relation is given by dE = Tds – PdV + u...

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Q: An unknown compound has the following chemical formula: P2Ox where x stands for a whole number. Meas...

A: Given :-  chemical formula ; P2Ox  no. of moles of O = 8.4 mol  no.of moles of P = 3.34 mol  To writ...

Q: What type of defense is occurring when mucin flows off the epithelium and carries pathogens with it?

A: In vertebrates, the interior epithelial surfaces are also covered with a mucus layer that protects t...

Q: thermometer. .6 g sample of iron, which has a specific heat capacity of 0.449 J-g .°c, is put into a...

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Q: Using specific heat capacity to find temperature change A chemical reaction takes place inside a fla...

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Q: 17. Select the correctly paired valence and core electrons. Element Valence electrons Core electrons...

A: Electrons are filled in a different atomic orbital in an atom. According to the Aufbau rule, the ele...

Q: While ethanol (CH,CH,OH) is produced naturally by fermentation, e.g. in beer- and wine-making, indus...

A: C2H4 (g) + H2O (g) <----> CH3CH2OH (g)   pC2H4 = 2.9 atm pH2O = 1.7 atm

Q: A certain number of moles of gas is contained in a 36.2 liter flask at 13.5°C. When the temperature ...

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Q: 5. Which of the following statements is (are) true? Energy is directly proportional to wavelength. T...

A: Option b is correct that is III, IV, V III. The energy of electromagnetic radiation increases as its...

Q: Adding an oxygen atom to a molecule is a chemical reaction called ___.     decomposition     red...

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Q: NaOH is a strong base. HF is a weak acid. Based on these observations, one would expect the pH of a ...

A: A base releases OH- ions and an acid releases H+ ions . Both H+ and OH- ions neutralise each other t...

Q: What is the empirical formula of a molecule containing 65.5% carbon, 5.5% hydrogen, and 29.0% oxygen...

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Q: The atom with the highest second ionization energy is c) Al a) Na b) Mg d) S

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Q: How many kinds of chemically non- equivalent hydrogens are there in each of the following compounds?

A: A compound can be defined as the substance which is composed of identical  molecules that are compos...

Q: Determine the number of NH,+ and CO,2- ions required to form a neutral ionic compound. Cations Anion...

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Q: How many grams is a sample of 0.863 moles of zinc nitrate, Zn(NO3)2?

A: To convert from moles to mass, first, calculate the molar mass of Zn(NO3)2 and then use that to find...

Q: If a 750 mL sample of drinking water has lead concentration of 28 ppm, how many grams of lead are in...

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Q: ZnCl2 (ag) + NAOH (ag) Edit View Insert F Format Tools Tab 12pt v Paragraph v B I

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Q: Graph Analysis Individual Assessment Provide clear and concise explanation for each of the question ...

A: BC (2) and DE (4) represent phase transition of the system.

Q: b) Pyrrole and indole both react with the reagents shown below to give compounds E and F respectivel...

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Q: Calculate the pH of an 0.025 M solution of HF. HF is a weak acid Ka = 0.00071

A: The PH of weak acids can be calculated as follows

Q: Compute the pOH, [H3O+], and [OH-] of soda drink if its pH value is 2.

A: Given  PH = 2  POH , [ H3O+] , [ OH- ] = ?

Q: Aqueous hydrochloric acid (HCI) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium ...

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Q: Shown is an IR spectrum of xylene, label the prominent bands and indicate what could be wrong in the...

A: I will state you the what is wrong in the spectra. 

Q: A sample of gas occupies 36.1 mL at a pressure of 656.5 torr. What is the new volume if the pressur...

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Q: There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first st...

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Q: A sample of Nitrogen gas occupies a volume of 375.5 mL at 77.8°C. What volume will it occupy at 26°C...

A: Volume occupied by Nitrogen gas at 77.8°C (T1) = 375.5ml = V1 Volume occupied by Nitrogen gas at 26°...

Q: Shown is an IR spectrum of a gas sample, determine what couild be wrong with the spectra?

A: Gaseous samples are also analyzed by IR spectroscopy like any other sample.

Q: c) Outline a synthesis for compound G shown below starting with a 2- hydroxybenzylketone. G

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Q: A sample of CO2 occupies a volume of 14.87 liters at 140.5 kPa. What pressure in kPa would the gas e...

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Q: Calculate ΔH for the following reaction: 2 H2S + 3 O2 → 2 SO2 + 2 H2O    ΔH = ?? Given the followi...

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Q: Na,CO3(ag) + CaCl2(aq) 2 NaCl(aq) + CaCO3(s) Order the steps required to predict the volume (in mL) ...

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Q: Ammonia has been studied as an alternative "clean" fuel for internal combustion engines, since its r...

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Q: Consider the reaction scheme below. PhLi HONH,, HCI A ELOH B D (i) Deduce the structures of compound...

A: Organic reaction mechanism

Q: Do the given data follow Charles’ Law?

A: According to Charles law, the volume of a certain amount of gas is directly proportional to the temp...

Q: How many grams would be found in 7 moles of calcium sulfate, CaSO4?

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Q: ilin the feouna Chart whn the lonyeature as the udume Chrges Nepl:Find-the quaient if ine hume divid...

A: We would use the given statement of Charles law to calculate temperatures .

Q: Which of the ions Mg2+, Sr2+, Ca2+, Be2+, Ba2+, or Ra2+ is the smallest? Which of the elements of t...

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Q: A 150.0 gram sample of a white powder contains 61.05 g of carbon, 7.65 g of hydrogen, and 81.30 g of...

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Q: "Synthesis gas is a mixture of carbon monoxide and water vapor. At high temperature synthesis gas wi...

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Q: The quantum numbers of the last electron of nickel could be: a) b) c) n= 3, € = 2, me =0, ms = 1/2 %...

A: To find the set of quantum number for last electron of nickel , we would first write the electronic ...

Q: initial change equilibrium

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Q: Some N, gas is mixed with some O, gas, and the sketch below shows a representative sample of the mix...

A: Partial pressure of gas is given by  p=xP where,p=partial pressure, x=mole fraction and P=total pres...

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.