Determine the number of grams of oxygen that are in 45.0 g of penicillin (C16H18N2O4S, MW=334.4). O 17.2 g O 8.61 g O 2.15 g O 0.538 g

Q: A chemist must dilute 61.8 mL of 6.71 M aqueous potassium iodide (KI) solution until the…

A: FOR DILUTION M1V1= M2V2 where M1 = Initial molarity of solution, V1 = initial volume of solution, M2…

Q: What is the concentration of A after 50.5 minutes for the second order reaction A Products when the…

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Q: second law of thermodynamics

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Q: How did [CO32-] decrease while DIC increased

A: Dissolved Inorganic Carbon (DIC) can be defined as the sum of the aqueous species of Inorganic…

Q: NH 'H-NMR Spectrum PPM 1"C-NMR Spectrum 180 160 140 120 100 80 60 40 20 PPM 3.

A: The correct answer about NMR spectroscopy is given below

Q: Selected organic compound: CARVACROL c) Illustrate a balanced chemical equation to synthesise…

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Q: We have thus far determined the single bond connectivity for (CH,),CO as: H Н—с—с-—с—н H H There are…

A: Given structure is :

Q: Pent-1,3-diene and HBr will yield O 3-bromo-pent-1-ene O 2-bromo-pent-2,4-diene 1-bromo-pent-2-ene…

A: Pent-1,3-diene and HBr will yield:   This is electrophilic addition reaction.

Q: A chemistry student weighs out 0.0923 g of hypobromous acid (HBRO) into a 250. mL volumetric flask…

A: Given mass of HBrO = 0.0923 g  Volume of HBrO in mL = 250.0 mL  Molarity of NaOH = 0.1400 M…

Q: Oxalic acid, H2C2O4 , has acid dissociation constants of Ka1=5.90×10-2 and Ka2=6.40×10-5.Calculate…

A: Given,  First acid dissociation constant of oxalic acid = Ka1 = 5.90 x 10-2  Second acid…

Q: Please answer both the parts otherwise I'll downvote

A: Kr has atomic number 36 and the desired element has 49 so the element is    The element is Indium…

Q: 1. What is the molecular weight of the titrant? 2. What is the molecular weight of the precipitate?…

A: Monocationic + 1 charge metal bromide solution is mixed with an excess of silver nitrate…

Q: Question 26 of 28 The half-life for the second order reaction A Products is 4.57 min. What is the…

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Q: Which of the following will produce a spontaneous reaction? (deltaG 0 all temp -delta H > 0 deltaS…

A: 1) When both ∆H < 0 and ∆S < 0 then reaction is spontaneous at low temperature because this…

Q: Write the chemical formula of the following complex ions. formula name tetrahydroxotitanate(II) alo…

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Q: How many moles of KCIO, solid must be reacted according to the following balanced chemical reaction…

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Q: Sigui ticonce of Unnertainty princi pie

A: Below attached file showing the details answer. All the best.

Q: A 0.043 M solution of an unknown acid, HA, has a pH of 2.56. What is the hydrogen ion concentration?…

A: In this question, we will determine the hydrogen ion concentration.  You can see the solution and…

Q: A chemistry student weighs out 0.152 g of ascorbic acid (H,C,H,O), a diprotic acid, into a 250. mL…

A: Here we first calculate molarity of ascorbic acid, then use total volume strength equation. The…

Q: (d) Write a short note on GM counter.

A: Alpha particles are positively charged particles, gamma rays have no charge and beta partcles are…

Q: Oxalic acid, H2C204 , has acid dissociation constants of Ka1=5.90×10–2 and Ka2=6.40x10-5.Calculate…

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Q: 6- lewis Acid anything that donates a proton H+ (proton donor) Base anything that accepts a proton…

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Q: Owing data: CO (g) + Cl2(g) --> COCI2 (g) Experiment [CO] (M) [CI,] (M) Initial Rate (M/s) 1 0.12…

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Q: how much faster will a balloon filled with He deflate through effusion than one filled with O2?

A: According to Graham law of diffusion the rate of effusion of a gas is inversely proportional to…

Q: Click the "draw structure" button to launch the drawing utility. Draw a Lewis structure for one…

A: The Resonance  structures have 3 structures but one of the structures  is represented  in next step…

Q: De Broglie Hypothesis ( Dual Naruse of matter And Radi ohou) Ex plovn weu along with detailed…

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Q: Consider the following data: CO (g) + Cl2(g) --> COCI2 (g) [CO] (M) Experiment [Cl,] (M) Initial…

A: The rate law for the given reaction can be written as: rate=kCOxCl2y ......(1) Here, x is the order…

Q: Consider the following equilibrium: 2NO, (g) – N,04(g) AG = - 5.4 kJ Now suppose a reaction vessel…

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Q: Consider the following reaction. X=Y If K. = 0.410 at 40. °C and K. = 0.675 at 90. °C, what is AH…

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Q: number 9. The carbon-carbon bond in a molecule of ethylene, C,H, is a(n): (a) single bond (a) ionic…

A: The name of the compound is ethylene. It contains a suffix ''-ene''.

Q: De Broglie Hypothesis (Dual Nahuse of matter And Radiahon) Ex plown weu along with defailed…

A: You have multiple questions, so I will solved first question for you and rest of questions post…

Q: An analysis was carried out on a 1.5-gram sample of feed, the moisture was 28%, and when estimating…

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Q: Many ions form colored solutions when dissolved in water. For example, aqueous Cu2+ solutions are…

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Q: Deriv ation l schrodlinger Equation with fuep aingram And its Application wave Expoinatian and

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Q: De Broglie Hypothesis ( Dual Naruse of matter And Radi ohou) Ex plovn weu along with detailed…

A: Since, you have multiple questions so I will solved first question for you rest of questions post…

Q: What is the electron group geometry around the central atom if it has 2 electron groups? O…

A: Given -> There is two electron groups around Central atom.

Q: Br (a) 1) excess Mg 2) excess CO2 3) H30 Br NH2 (b) 1) NaNO,, HCI 2) H,PO2, heat CH-OCH, CH-OCH3 (c)…

A: This reactions involved to category of Electrophilic  Substitution  Reactions .

Q: What is the pH of a solution that results from mixing together equal volumes of a 0.120 M  solution…

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Q: Explain Heisenbery Uncertointy boiuky priniple with deivahion aloy fully descaibe in word and more…

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Q: Rank the following from lowest to highest boiling point -CH3-CH2-CH2-Cl -CH3-CH2-CH2-CH3…

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Q: The equilibrium constant, Kc, was found to be 1.3 x 10^3 at 24.6 C for the reaction.…

A: Here we are required to find the reduction potential of half reaction of X.

Q: (3) N,O + NOx 3 NO (a) What is AG°n AG° = E(3 moles)(87.6 K/mo)) -()(51.3 Kma) + (1)(103.7! %3D…

A: Using standard thermodynamic data all ∆G° needs to be calculated.

Q: If the partial pressure of N2 is 1.40 x 105 Pa and the partial pressure of Ne is 4.50 x 105 Pa in a…

A: Given: Partial pressure of  N2 = 1.40 x 105 Pa Partial pressure of Ne is 4.50 x 105 Pa

Q: Select the compounds that you would expect to be soluble in water. -HF -CH3OH -CCL4 -CH3NH2…

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Q: How many equivalents in are in 2.00 L of a 5.00 M solution of Na2SO4?

A: Given: Volume of solution = 2.00 L Molarity of solution = 5.00 M

Q: 5) 0.7971 g of molecule, X, is found to contain 3.0 x 1022 atoms. Deduce the identity of X. Given N…

A: Given: Mass of X2 = 0.7971 g Atoms of X2 = 3.0×1022 NA = 6.023×1023 mol-1

Q: Calculate the pH at the equivalence point when 75.0 mL of 0.250 M HCl is mixed with 0.350 M of…

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Q: A 0.205 M solution of Na2C204 . pH= [H2C204]= M [HC204^-]= M [C204^-2]= M

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Q: a) Write out 6 completely different reactions of 3-pentanone (reagent, product).

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Q: Complete the following table, which lists information about the measured acid dissociation constants…

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States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.