Chemistry Question

Q: Consider the following reaction. MgCl2 (aq) +2 NaOH(aq) - Mg(OH)2 (s) + 2 NaCl (aq) A 140.0 mL solut...

A: The number of moles (n) of MgCl2 in 140.0 mL solution of 0.149 M or 0.149 mol/1000 mL MgCl2 is calcu...

Q: The equilibrium system between nitrogen gas, oxygen gas, and nitrogen dioxide gas is given.   N2(g)+...

A: Given that,The equilibrium reaction is

Q: What wavelength of light is emitted by a hydrogen atom electron falling from n=6 to n=3?

A: The transition energy when electron falls from n = 6 to n = 3 is determined as follows:

Q: ClCF3 alkyl halide naming?

A: Alkyl halides have also been called as haloalkanes. In these compounds, the hydrogen group which is ...

Q: How many grams of CaCl2 are needed to completely react with 250. mL of a 0.750 MAgNO3 solution?Given...

A: Number of mol of AgNO3 reacted = molarity x volume (L) = 0.750 M x 0.250 L = 0.1875 mol

Q: How much energy is required to raise the temperature of 10.6 grams of solid copper from 23.7 °C to 3...

A: The energy required is determined by using Q = m c deltaT.

Q: Calculate Ecell for the following electrochemical concentration cell:   Write your answer with three...

A: The two half-cell reactions are as follows:

Q: To measure the iron content of runoff from a ranch a 25.0 mL sample of run off was acidified with HN...

A: The Beer-Lambert’s law, the absorbance (A) is directly proportional to the concentration (c) of the ...

Q: bblearn.cccnj.edu/webapps/assessment/take/launch.jsp?course assessmentuid- 29269 1&course id= 2992 1...

A: Given:Initial Volume V1 = 10.1 cm3 = 0.0101 L.Initial Pressure P1 = 746 mmHg = 0.9816 atm.Initial Te...

Q: Enter your answer in the provided box. What is the pH of a solution containing 0.37 M HCOOH and 0.69...

A: Given that the acid ionization constant is 1.7×10 -4 .

Q: Ignition wires heat Thermometer Stirrer sample A bomb calorimeter, or a constant volume calorimeter,...

A: The heat released by burning of 1.0580g of fructose can be calculated as

Q: A sodium flame has a characteristic yellow color due to emissions of wavelength 568 nm. What is the ...

A: Given that,Wavelength = 568 nm1J = 1 Kg m2/s2

Q: Write down all the symmetry elements associated with the following molecules and then use the flow c...

A: The symmetry elements and point group present in diborane is given by

Q: “A typical vitamin C tablet contains H2C6H6O6. If two tablets are dissolved in about a cup of water,...

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

Q: Explain solubility using solubility curve

A: Solubility is defined as amount of solute needs to form a saturated solution at a certain quantity o...

Q: What volume of a 2.50 M NaCl solution would be needed to completely react with 225 grams ofFe(NO3)3?...

A: The given Reaction is,

Q: In the reaction below N2(g)+3H2(g)⇔ 2NH3(g)  deltaH = -92kJ Which of the following changes will incr...

A: Given reaction is,

Q: 13.43 Calculate the molarity of the following aqueous solutions: (a) 0.540 g of Mg (NO3 ) 2 in 250.0...

A: a)Calculation of moles of Mg(NO3)2:

Q: Com X Bb Mas X Mas X Hom X K! Kahx Exan X K! Kah X Mitc X КI Kah X K Kah x K! Kah x Kah x K Kahx C s...

A: Dipole moment:The charge separation of the molecule produces dipole moment. Dipole moment arises bet...

Q: identify the atom oxidized, the atom reduced, the oxidizing agent, the reducing agent, the oxidation...

A: The very first reaction is

Q: An arctic weather balloon is filled with 17.8L of helium gas inside a prep shed. The temperature ins...

A: The temperature (T1) inside the shed is 7 0C or in Kevin equal to 280.15K and the temperature (T2) o...

Q: See attached images; one is the question and the other is my solution. For part B I'm not sure where...

A: The chemical equation for dissociation for the first ionization of ascorbic acid is given by

Q: If ln k is plotted vs 1/T, what does the slope of the resulting straight line represent?

A: Hi,As it is not clearly mentioned which equation has to be considered, I am taking the basic Arrheni...

Q: Which of the following represents the most polar bond? A) B-C             B)    S-OC)    C-O        ...

A: A polar bond can be defined as the covalent bond in which two atoms having electrons that are involv...

Q: Which of the following statements about quantum numbers are TRUE ? 1)They describe the number of pro...

A: A total of four quantum numbers are there to describe completely the movement of an electron within ...

Q: What is the product of the acid catalyzed addition of water to                      1-methylcyclopen...

A: 1-methylcyclopentene in the presence of acid reacts with H2O to give 1- methylcyclopentanol.

Q: Question 1

A: The valence electrons of an atom are present in the outer most shell. An atom loses or gains electro...

Q: aWrite the formula for the following molecule iodine difluoride bWrite the formula for the following...

A: Chemical formula of Iodine difluoride:

Q: Calculate the minimum of a mass of coke needed to produce 9500 kg of pure iron. Two sig figs for ans...

A: Calculate the energy required for the formation of 9500kg of iron,

Q: which of the following sets of quantum numbers (n,l,ml, ms) is correct? if incorrect, state why.  a....

A: n, l, ml, and ms are the principal, azimuthal, magnetic, and spin quantum numbers, respectively. The...

Q: Consider the following statements as they apply to quantum numbers. Decide if each statement is True...

A: Given statements,Electrons in an s atomic orbital are the least shielded by electrons in other orbit...

Q: What are the correct table entries with the given quantities?

A: The molecular formula for triethylene glycol is C6H14O4The molecular formula for meso-Stilbene dibro...

Q: The electron in an (unbound) hydrogen atom (H(g)) is excited from the ground state to the n=3 state....

A: The emission spectrum for a given element or a compound refers to the spectrum of frequencies of the...

Q: Determine the frequency of photon of light that gives off 2.85 × 10^-19 Joules.

A: Given that,E = 2.85 ×10-19 JNow you calculate the frequency of light

Q: How much time (in minutes) would it take for 3.5 grams of copper to be plated, if the current is 4.7...

A: The moles of copper to be plated can be calculated as

Q: What volume of a 1.50 M NaOH solution would be needed to react with 250. mL of a 6.0 MH2SO4 solution...

A: GivenMolarity of NaOH= 1.50MMolarity of H2SO4= 6.0MVolume of the H2SO4= 250.0mLThe reaction is

Q: problem 8.45

A: The volume of 17x stock solution of povidone iodine needs to prepare 450ml of 5x of solution is calc...

Q: Using standard heats of formation, calculate the standard enthalpy change for the following reaction...

A: The balance chemical equation for calcium carbonate dissociation and standard enthalpy change of rea...

Q: Given that a 10.0g sample of ice at 0.0 degrees celsius melts and then the resultant water proceeds ...

A: Note: As per our code, we are allowed to answer only the first question when a collection of questio...

Q: Calculate ΔG at 298 K for the electrochemical cell consisting of Au metal in a 0.00500 M Au(NO3)3 so...

A: The oxidation and reduction half cells can be given as

Q: Check out the change in entropy round your answer to two significant digits and be sure it has a cra...

A: Given that,Initial rotational kinetic energy Er1 = 83ꜫFinal rotational kinetic energy Er2 = 93ꜫ

Q: Write a balanced chemical equation for the equilibrium reaction occurring in a buffer containing NH3...

A: Buffer solution contains a significant amount of weak base and its conjugate acid or weak acid and i...

Q: 14. predict the product of the raction below. Which of the following change(s) in the IR spectrum is...

A: In the given reaction, alcohol is treated with sodium hydride. NaH will deprotonate alcohol and ethe...

Q: The Ksp of SrSO4 changes from 2.8 x10-7 at 37 degree C to 3.8 x10-7 at 77 degree C. i)Calculate delt...

A:

Q: The bright-red color of highway safety flares comes from strontium ions in salts such as Sr(NO3)2 an...

A: The relationship between wavelength and energy is given as:

Q: Calculate the change in entropy round your answer to three significant digits and be sure it has the...

A:

Q: Calculate the mass in grams of H2S gas that can be dissolved in 900 mL of water at 25 c and H2S part...

A: The Henry’s Law states that the mass of a gas dissolved by a solvent is directly related to the pres...

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used t...

A: The heat lost by metal is equal to the heat gain by the water and calorimeter. The final temperature...

Q: 13.31 (a) Would you expect stearic acid, CH3(CH2)16COOH, to be more soluble in water or in carbon te...

A: (a)Stearic acid has a carboxyl group "COOH" portion in it, that might hydrogen-bond to water molecul...

Q: A glass of milk has a pH of about 6 and a cup of tea has a pH of 5. Which one has more hydronium (H3...

A:  GivenpH of milk = 6pH of tea = 5