A student reads a barometer in the laboratory and finds the prevailing atmospheric pressure to be 747 mm Hg. Express this pressure in atmospheres, kilopascals, torrs, pounds per square inch, and pascals. Hint: 1 atm 101.3 kPa = 760 tor = 760 mm Hg = 14.69 psi = 1.013x105 Pa mm Hg atm kPa torr psi Pa 747 Submit Answer Retry Entire Group 9 more group attempts remaining

Q: he pH of an aqueous solution of 0.377 M triethylamine (a weak base vith the formula (C2H5)3N) is

A:

Q: xplain how you can use the concept of crystals. Give at least two situations or examples where its i...

A: Answer - Crystal Crystals are solid materials where atoms and molecules are arranged in a highly or...

Q: Кы(еxperiment)

A:

Q: Question 3 Which of the following statement/s is/are TRUE? I. The Arrhenius Theory cannot be applied...

A: Strong electrolytes are completely dissociated in water where as weak electrolytes are partially sol...

Q: A0.200 M solution of XBr has a pH of 2.67. Which of the following could be XBr? Weak Base Kb A) HONH...

A: Given :- pH = 2.67 pH = - log[H+] [H+] = 10-2.67 = 2.13 × 10-3 M Concentration of XBr = 0.2 M = 0.2 ...

Q: Provide the answers with proper number of significant figures in the following operations. pls provi...

A: We know the default base of logarithm is 10.  To find the antilog we need to divide the given number...

Q: Lalisa and Labmi were tasked to design a new and efficient method of producing black inks. To determ...

A: Retardation or retention factor (Rf) value is the ratio of distance traveled by the analyte to that ...

Q: Solve the following using the Alpha decay, Beta decay and Gamma radiation. 1. Antimony 2. Copper 3. ...

A:

Q: 1. The formula for the conjugate base of H2S is 2. The formula for the conjugate acid of H2PO4" is

A: Determine conjugate base and acid of the given substance----  

Q: D: Define and draw the Unit Cell and give an example.

A: Given,  Define and draw the unit cell and give an example = ?   

Q: Draw the major organic product of the reaction. Indicate the stereochemistry via wedge-and-dash bond...

A:

Q: 6.8 What mass of butane in grams is necessary to produce 1.5 X 10' kJ of heat? What mass of CO2 is p...

A: The balanced chemical equation for the combustion of methane is, C4H10+132O2→4CO2 + 5H2O 58 g of but...

Q: Finish each Newman Projection to represent the given

A:

Q: The medication order calls for adenosine 10 mg in 50 mL NS to be administered IVPB over 20 min. What...

A: The concentration of the adenosine  is 10 mg in 50mL.

Q: What two elements are exceptions to the way we normally write electron configurations? write the exp...

A: Electronic configuration tells us about how electrons are distributed in atomic orbitals 

Q: In the laboratory, a general chemistry student measured the pH of a 0.377 M aqueous solution of trie...

A:

Q: A sample of gas occupies a volume of 67.0 mL. As it expands, it does 133.6 J of work on its surround...

A: Given: The initial volume of the gas = 67.0 mL The amount of work done by the gas on its surrounding...

Q: Grams to Grams: Remember these equations use mole to mole ratio: 4. How many grams of butane, C,H10,...

A:

Q: A 2.00 g alkali sample is dissolved and diluted to 100.0 mL. Titration of a 25.00 mL aliquot to the ...

A: A question based on environmental chemistry that is to be accomplished.

Q: A 41.06 g sample of a substance is initially at 24.0 °C. After absorbing 1365 J of heat, the tempera...

A: Given - - > m = 41.06 g T1 = 24°C T2 = 154.4°C Q(absorbed) = 1365 J Specific heat =? We know that...

Q: 2. How many grams of H2 are needed to react with 9 g N2? Cota Imde

A: Given - Gram of nitrogen = 9 gram To Calculate - gram of H2 are needed to react with 9 gram of N2. R...

Q: 250ml of 0,05M Na-phosphate buffer from 0,2M Na-Phosphate buffer by dilution. COMPLETE it using the ...

A:

Q: What is the application of Sodium Chloride Solution in Paper Chromatography?

A: As per our guidelines, we are suppose answer the first question only. So I request you to repost for...

Q: In the complete combustion of C3H8O3, how many moles of carbon dioxide are produced when 23.0 grams ...

A:

Q: If 801 J of heat is available, what is the mass in grams of iron (specific heat = 0.450 J/g･°C) that...

A: Given data : Heat (q) = 801 J Specific heat (C) = 0.450 J/g.°C Initial temperature (Ti) = 22.5 °C Fi...

Q: At 37 °C the equilibrium concentration of Ca²+ inside a cell is 0.054 M and outside is 0.027 M. T ce...

A: Given Ca2+ inside a cell is 0.067 M and outside is 0.034 M. The concentration of Prin+/– (in M) has ...

Q: OH

A: According to the rules of IUPAC nomenclature longest carbon chain is numbered at first.Carbon contai...

Q: Rank the following molecules from weakest to strongest in terms of the intermolecular forces it can ...

A:

Q: Predict the 'H NMR spectrum for the following compound, giving multiplicities and estimates of the c...

A: Here we have to find out the multiplicity ,chemical shift and coupling constants of the respective h...

Q: The pressure arises when the rate of solvent from the pure solvent is equal to the rate of solvent i...

A:

Q: Direction: Draw the dipole moment vector for each molecules and identify whether the molecules are p...

A: Polar molecules are the molecules having non zero dipole moment and non polar molecules have zero di...

Q: pH

A:

Q: Question 12 The standard cell potential for the reaction: A (s) + B2* (aq) = A2* (aq) + B (s) is - 0...

A:   Nernst equation is  Ecell = Eocell - 0.0591/n log Q  Where  Ecell = emf of cell   at equilibrium E...

Q: For the hydrolysis reaction of a nitrile with H30+, H30+, which of the following is produced interme...

A:  the hydrolysis of nitriles under acidic  conditions to make carboxylic acids or their salts while a...

Q: . 2.00 grams of Sodium hydroxide was dissolved in water up to 500 mL. Calculate the Normality of the...

A:

Q: A hot 101.6 g lump of an unknown substance initially at Substance Specific heat (J/(g•°C)) 164.8°C i...

A: We have to equate the heat lost by the metal to the heat gain by the water to determine the specific...

Q: f the dwell time is 3.5 min for a solvent gradient of 5% B to to 60% B over 20 mi what is the % B el...

A: Solution- Given data-  Dwell time is 3.5 min. Solvent gradient of 5% B to 60% B in 20 min. To find- ...

Q: Consider the reaction: CD c2+ + B2-; Ksp = 2.4 x 10-8 What is AG° at 25 *C? 8.2 kJ/mol 6.21 x 10-2 k...

A: Given,  Ksp = 2.4x10-8  T = 25 °C 

Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 278. kJ during a ...

A:

Q: Sulfur dioxide burns in oxygen to form sulfur trioxide according to this equation 2SO2 (g) + O2 (g) ...

A: Given reaction is :  2SO2 (g) + O2 (g) -->  2SO3 (g) A. If 3.0 mole SO3 are produced, how many mo...

Q: Complete the synthesis in 6 steps or less. You may use any reagents. OH Br HO

A:

Q: oron trichloride is prepared from the following reaction: 2B2O3+6Cl2+3C⟶4BCl3+3CO2   3.337 g B2O3...

A: Mass of B2O3 = 3.337 g 

Q: The value of Ka for hypochlorous acid is 3.50x10-8. What is the value of Kb, for its conjugate base,...

A: The dissociation of the hypochlorous acid takes place as follows: HClO + H2O  → H3O+ +  ClO-

Q: 1.Give the mechanism and products for the reaction below. Hcat.) + IZ

A: We have to give the product with mechanism. Here initially protonation of aldehyde group occurs by t...

Q: The pH of an aqueous solution of 0.255 M hydrosulfuric acid, H2S (aq), is

A:

Q: Determine whether the following salt when dissolved in water will produce an acidic, basic or neutra...

A: A salt is formed from by the neutralization reaction between an acid and a base. If a strong base is...

Q: Viagra inhibit PDE5？what does it means？what will happen if Viagra inhibit PDE5？

A: Viagra is a drug used to treat erectile disfunction.Let's discuss about it according to question.

Q: Select the sign of the work based on the change in volume of the cylinder after the reaction.

A:   Thermodynamics is the branch of physical chemistry which deals about different forms of energies ...

Q: molar masses

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any spe...

Q: The annual production of sulfur dioxide from burning coal and fossil fuels, auto exhaust, and other ...

A: Sulfur reacts with oxygen to form sulfur dioxide. The equation for the balanced chemical reaction is...

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.