Why is it important that a drop of condensate be suspended from the thermometer during a distillation?

Q: What is the vapor pressure of a solution that contains 0.358 mol of Li2O dissolved in 100g of water?…

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Q: 1. The fermentation of glucose to ethanol and CO2 is given by: C6H1206(s) →2C2H5OH(1)+2C02 Given are…

A: Entropy is the measure of the randomness or disorder of a system. The entropy change for a system is…

Q: Question 8 01 8 Fill in the blanks: Choices: A - 3H₂O B-6H* Step 1 D - 1 Perform the balancing of…

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Q: A rectangular block of iron was found to be 19.00 cm wide, 0.31500 m high, and 720.026 mm deep.…

A: In the given problem, first we need to convert the height and width in cm. Then we use the formula…

Q: t the following organic acids in order of increasing acidity, starting with the least acidic one and…

A: Question 5. Now in all options except option c is given the compounds with carboxylic acid…

Q: How would the following sources of error effect the value of R you determined in your experiment?…

A: R value can be calculated using the volume of H2 gas produced at a given temperature and pressure.…

Q: Determine the mass of a sample of water containing 3.55*1022 molecules of H2O

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Q: At 2000°C the equilibrium constant for the reaction is Kc = 2.4 103. 2 NO(g) N2(g) + O2(g) If the…

A: In this question, we have to find the equilibrium concentrations of NO, N2, and O2.

Q: In the following reaction, 315 mL of O₂ gas was collected over water at 15°C and a barometric…

A: Given -  Volume of O2 = 315 mL              Temperature = 15°C             Barometric pressure = 745…

Q: Shown below is the major resonance structure for a molecule. Draw the second best resonance…

A: Given molecule: We have to draw the second-best resonance structure of the molecule.

Q: Name the functional group shown in the picture below: H₂N a b b d: HN NH a NH₂ NH OH C

A: Organic molecule has some group that are more responsible for the chemical reaction. The group is…

Q: 6. A piece of iron wire has a diameter of 0.485 mm. If iron has a density of 7.86 g/cc, how long (in…

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Q: Which pka value best represents the indicated hydrogen? H H p H O 45 O 35 H O none of these O 15 O…

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Q: Which orbital approach provides the best overlap? OR C Br od C Br

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Q: Consider the reaction R  P. Check all of the following that are true when a catalyst is added to the…

A: •Here reaction given=>   R <=> P •R is reactant and P is product. •Here we are adding a…

Q: What is the electron configuration and noble gas configuration for the following atoms or ions a) Ca…

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Q: Based on activation energies and energy changes and assuming that all collision factors are the…

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Q: The compound known as butylated hydroxytoluene, abbreviated as BHT, contains carbon, hydrogen, and…

A: Mass of BHT = 1.251 g Mass of CO2 = 3.748 g Mass of H2O = 1.227 g Empirical formula = ?

Q: If a 0.530 m aqueous solution freezes at -2.10 °C, what is the van't Hoff factor, i, of the solute…

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Q: 21.1 g O2 20.5 g C8H10 Express the answers in molecules to three significant figures

A: Given data 21.1 g O2 20.5 g C8H10 The number of molecules present in the given species are

Q: 158mg of an unknown protien are dissolved in enough solvent to make 5.00 mL of solution. the osmotic…

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Q: Question 5 23-15 8 of (NH),PO, is dissolved in enough water to prepare 150.0 mL of solution. What is…

A: Molarity or concentration is the number of moles of solute in one liter of solvent. This term…

Q: Identify the point(s) on the following diagram where the addition of heat will cause the temperature…

A: As seen from the graph there are 10 points where the changes occur .  Now , At point A, as the heat…

Q: Why is water covalent if there is hydrogen bonding which is non-covalent?

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Q: Question 3 Write the following molecules down exactly as given, and draw ONE OTHER resonance…

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Q: OCl, 0.0114 g of NO, and 0.0533 g of Cl2. (a) Calculate KP for this reaction at this…

A: NOCl decomposes as below 2 NOCl(g) -------------> 2 NO(g) + 1 Cl2(g) Given at equilibrium ,  5-L…

Q: 1. Fill in the blanks: A [He] 2s²2p Atom Number of valence electrons Number of core electrons…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Question 7 of 8 Fill in the blanks: Balance the reaction HNO3(aq) + H3AsO3(aq) 1) the oxidation…

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Q: At 128 oC the equilibrium constant for the reaction: 2 HBr(g)  H2(g) + Br2(g) is KP = 4.21e-12. If…

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Q: For an aluminum foil origami boat of 2.17 g (You are bored and you just made an origami…

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Q: Question 2 of 8 Fill in the blanks: Determine the oxidation number of each element in Al₂O3; Al =…

A: A question based on atomic structure that is to be accomplished.

Q: how many molecules (not moles) of NH3 are produced from 4.26*10-4 g of H2? Express your answer…

A: We need to find how many molecules (not moles) of NH3 are produced from 4.26×10-4 g of H2.

Q: How many total atoms are there in 27.7 g carbon monoxide (CO)?

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Q: Perform the balancing Pb(OH)4+CIO PbO₂ + CI+ OH under basic condition, then match the given items…

A: Reaction: Pb(OH)42- + ClO- ---> PbO2 + Cl- +OH-  Split the reaction in oxidation and reduction…

Q: Redraw the following reactions on your answer scripts exactly as given and add curly (mechanistic)…

A: Redraw the following reactions by curly arrows to show the movement of the electrons order of the…

Q: What are the names of the compounds on the chart?

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Q: Question 4 of 8 Fill in the blanks: The oxidation number of N in N₂ is

A: Given N2

Q: Find the length of time (in h) the IV should be administered (assume a drop factor of 10 drops/mL).…

A: Given that,  The drop factor is 10 drops/mL. The rate is 40 drops/min. We have to calculate the time…

Q: 4. N₂ has a molecular weight of 28.0129 Daltons, a bit larger than that of a He atom (4.0017). (a)…

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Q: Find the number of ibrprofen molecules in a tablet containing 200.0 mg of ibuprofen (C13H18O2)

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Q: 2C8 H18+ 250216CO2 + 18H₂O 1. How many moles of C8H18 are required to react with 12.6 moles of O 2.…

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Q: Give a clear handwritten answer with explanation....given below some compounds choose which compound…

A: The second-period elements that form only single bonds (sigma bond) are sp3 hybridized in…

Q: orm the balancing Pb(OH)4+CIO PbO₂ + CI+ OH under basic condition, then match the given items with…

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Q: Predict the formula for a compound made from X2+ and Y²-. Insert subscripts as needed. formula: XY

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Q: Talk about how ethylene affects fruits and vegetables negatively.

A: Given ethylene affect fruits and vegetables negatively. We need to explain the negative effect of…

Q: How many carbon atoms are there in a 2.7-carat diamond? Diamonds are a form of pure carbon. (1 carat…

A: 1mole is equal to the number of atoms present in 12 grams of carbon-12.

Q: 6) Why are cis- and trans-stillbene visible on a TLC plate when viewed with short-wave ultraviolet…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A₁ B3 E₁ = A B3 E Step 1: Find the Central Atom N Central atom is: Look your line bond structure on…

A: In this question, we have to complete all the steps for NI3.

Q: What is the formal charge on the oxygen atom in the following molecular species? 0 H CH₂

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Q: 2. 3. H CI

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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.