How would you write 3800000 to only 4 significant figures? О а. 3.800 х 106 O b.3.8 x 106 O c. 3.80 x 104 d. 3.8000 x 106

Q: What is the equilibrium constant (K) at 25°C for the following cell reaction? Co(s) +Ni2+→Ni(s)+ Co...

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Q: volume

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Q: one pair has significantly fewer similarities in chemistry than the other two pairs: Ca& Zn, Sc & Ga...

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

Q: [References) Iodine and bromine react to give iodine monobromide, IBr. 1 (g) + Br2 (g) = 2IB1(g) Wha...

A: Kc = [IBr]2/[I2] [Br] 

Q: Select the equilibrium constant expression for the reaction in the diagram. In the diagram, X atoms ...

A: Write equilibrium expression of the given reaction---

Q: H +

A: Pyridine is a base which can abstract the hydrogen (proton) and form product.  

Q: Naming of Alkanes: (Ctrl) - me

A: Iupac name -it gives sysmatic name to the organic compounds

Q: One mole of iron None of the other choices is correct. O is heavier than one mole of lead (Pb). O is...

A: Given  One mole of iron

Q: OH Br

A: 1-> elimination of leaving group. 2-> base can abstract most acidic hydrogen.  

Q: How would you prepare 10.0ml of a buffer with a concentration of 0.0100 mol/L, and pH 7.40, starting...

A: Given: pH of buffer = 7.40  Concentration of buffer = 0.0100 M Volume of buffer required = 10.0 mL =...

Q: Provide the correct IUPAC name for the compound shown here.

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Q: Could you please complete the reaction equation with the correct chemical formula for the product an...

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Q: • If there is reaction, write a complete chemical equation (reactants products) (Don't forget to inc...

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Q: Which of the following samples contains the greatest number of atoms? 2.0 mole of Ar 0.1 mole of Fe ...

A: To solve this problem we have to calculate the number of atoms in each given samples .

Q: An iron ore was analyzed by dissolving a 2.9912-g sample in concentrated HCI. The resulting solution...

A: Given: Mass of ore sample used = 2.9912 g. And mass of Fe2O3 obtained = 0.8394 g.  

Q: Select True or False: Consider the reaction N2(g) + 3H2(g) = 2NH3(g). When hydrogen gas is added to ...

A: Given,  When hydrogen gas added to a system at equilibrium the reaction will shift to:

Q: H2 Rh

A: Given, 

Q: A Mass Spectra analysis was carried out with the following results. Explain what you can and cannot ...

A: Molecular mass of the molecule is equal to the m/z value of the molecular ion peak.

Q: Solute Solvent 20 °C 40 °C 60 °C 80 °C Sucrose Water Sucrose Benzene Answer Bank 360 g 240g insolubl...

A: Solubility The amount of solute present in 100 g of solvent is known as solubility. The solubility o...

Q: Calculate the pH of the following: 0.20 M arginine  hydrochloride

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Q: 2) Given the following compound, A) Determine the subunits that were required to make this molecule....

A: A question based on molecules that is to be accomplished.

Q: -COCH3 CH3OCCH,CH2COCH3

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Q: What is the density of ammonia gas in a 4.32 L container at 837 torr and 45.0 degrees Celsius?

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Q: 0JU tile Relerences to acce the structure of the organic product that is expected when the он H2SO4 ...

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Q: What should be the coefficient of C;H;OH in order to balance the chemical reaction: C;H;OH + K2Cr,0,...

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Q: Please provide the CORRECT IUPAC NAME and COMMON NAME of the given structure.

A: Answer: Given compound is containing ether as a functional group, so we have to follow the rules of ...

Q: minimum number of steps; from one to six are required. List reagents by letter in the order that the...

A: The first conversion involves formation of olefin from a carboxylic moiety and the second conversion...

Q: In the next part of the experiment, you used the standard solution of sodium oxalate to standardize ...

A: The data given is,  

Q: Use the standard half-cell potentials listed in the table to calculate the standard cell potential i...

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Q: Whea the conceatratioas of reactaat molecules are iacreased, the ate of reaction increases. The best...

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Q: n which direction will the following equilibrium shift when solid calcium chloride is added? AgCl(s...

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Q: Identify the type of reaction for the following: H2 Rearrangement reaction Substitution Elimination ...

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Q: 30:(9) -- 20:(9) decreasing the volume will shift equilibrium in the direction of products decreasin...

A: To identify: The shift in the equilibrium due to a decrease in the volume.  

Q: Draw structural formulas for the following carboxylic acids and circle the acidic hydrogen atoms pre...

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Q: What volume of 5.0M NaCl is needed to provide10.0 grams NaCl?  Atomic weights: Na = 22.99  Cl = 35.4...

A:   Molarity (M) : Number of moles of solute present in 1 litre solution is called molarity (M)   math...

Q: How much lithium sulfite in grams, should be added to water to prepare a 627 mL of solution with a m...

A: Answer: Molecular formula of Lithium sulfite is: Li2SO3  

Q: When methanol, CH,OH, is burned in the presence of oxygen gas, 0,, a large amount of heat energy is ...

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Q: True or False: The definition of a mole is an Avogadro's number of a specific entity, such as an ato...

A: Option A. True 

Q: How many moles of carbon dioxide could be produced if 10 moles of octane, C 8H 18, are combined with...

A: To find the amount of product formed, first find the limiting reagent.

Q: Attempt 3 temperature change of solution: -4.12 °C J Then, calculate the amount of heat gained or l...

A: Given., The solution is 70 g of water and 5 g of sodium nitrate. The temperature change is -4.12 deg...

Q: 'CI

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Q: What are acid base reaction applications in industrial processes specifically (resource extractions,...

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Q: K Question 18 of 23 > Potassium nitrate, KNO,, has a molar mass of 101.1 g/mol. In a constant-pressu...

A: 19.3 g of KNO3 is dissolved in 249 g of water at 23.00◦ C. The temperature of the resulting solution...

Q: A solution is made by adding 0.320 g Ca(OH)2(s), 35.0 mL of 1.10 M HNO3 and enough water to make a f...

A: Given,  Mass of Ca(OH)2 = 0.320 g  Volume of HNO3 = 35.0 mL  Molarity of HNO3 = 1.10 M  Final volume...

Q: What will be the major organic product from the acid-catalysed hydration of 1- butene (CH,=CHCH,CH)?...

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Q: What are at least three sources of error for the synthesis of acetanilide lab?

A: The synthesis of acetanilide involves the starting materials: aniline and acetic anhydride which are...

Q: Practice Exercise Give the IUPAC names of the following structures: a. CH,-CH=C-CH,-CH, C,H, C,H; CH...

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Q: A 1.00 L volume of buffer is made with concentrations of 0.350 M sodium formate (NaHCOO) and 0.550 M...

A: Given,  A 1.00 L volume of buffer is made with concentrations of 0.350 M sodium formate (NaHCOO) and...

Q: How many moles of Cl atoms are there in 65.2 g CHCI3? O 1.64 mol O 3.00 mol O 0.548 mol O 1.09 mol

A: To solve this problem we have to first find the mole of CHCl3 then mole of Cl will be calculated .  

Q: Methyl orange is an indicator used for detecting the pH of acidic solutions. The red, protonated for...

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.