215.0 mol of an unknown gas is stored at a temperature of 1110 K in a large, 395 L In atm, what is the approximate pressure of the gas? R=0.0821 Latm/(n ol* K)

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Q: 32 Calculate the number of moles of: (a) S2- ions in 6.56 mol of Na,S (b) Mg2+ ions in 8.320 mol of ...

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Q: An analytical chemist is titrating 97.8 mL of a 1.100M solution of nitrous acid (HNO,) with a 0.8900...

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Q: Differentiatethe types of catalysts

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Q: order

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Q: Make a list of the properties of ACID. Explain why each is helpful.

A: Acids are the substance which donates H+ ion when dissolved in water 

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Q: calorimeter constant:

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A: Given: Molarity of titrant (NaOH):  0.4550 M   Trial # First Second Third Fourth Ini...

Q: provide an explanation for why the first law of thermodynamics is important in every chemical reacti...

A: A  question based on chemical thermodynamics that is to be accomplished.

Q: 1. Which of the following is correct about the condition in equilibrium? A. The amount of the reacta...

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Q: LOH OH OH ÓH он The complete name of this monosaccharide is B-D-glucopyranose O True O False

A: glucose have a cyclic structure called as glucopyrnose 

Q: Balance the following oxidation-reduction reactions. Show all steps in the half reactions.Determine ...

A: a. FeCl2 + KMnO4 + HCl → FeCl3 + KCl + MnCl2 + H2Ob. K2Cr2O7 + H2O + S → SO2 + KOH + Cr2O3

Q: 4. Period 3, Group 2A 1. EC: 2. OD: 3. LDS: 4. QN: 5. Period 4, Group 5A 1. EC: 2. OD: 3. LDS: 4. QN...

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Q: An endothermic dissolution reaction will be spontaneous at high temperatures. Select one: O True O F...

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Q: A В C

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Q: Calculate the pH of a 0.14 M solution of diethylamine

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Q: CalculateThe density in grams/liter 0f amm0nia at100oC,under a pressure 0f769mmHg

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Q: Polarity and IMFS Practice Determine the geometry, hybridization, polarity, and intermolecular force...

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Q: polar or nonpolar?

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Q: restion 14 Which type of isomerism exists between the pair of monosaccharides below? но H OH C- Н-С—...

A: Isomerism  The compounds having same molecular formula but different structural formulae 

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Q: Enter your answer in the provided box. A gas initially at 4.65 L, 1.12 atm, and 61 °C undergoes a ch...

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Q: A scientist measures the standard enthalpy change for the following reaction to be -601.8 k) : 20(g)...

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Q: Describe how various factors influence the rate of reaction.

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Q: OH HỌ но но HO Gulose Is this the D- or L- isomer? Is this the alpha- or beta- anomer? O D, alpha O ...

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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.