The number of moles in 10.0 grams of CO2 is: Choose the answer with correct significant figures. a. 0.2 moles b. 0.23 moles b. 0.227 moles d. 4.40 moles

Q: molecules

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Q: Liquid hexane (CH3(CH2),CH;) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide…

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Q: How many g of Aluminum are needed to react completely with 16.41 gram of Mn3O4, according to the…

A: The molar mass of Mn = 54.938g/mol The molar mass of O = 15.999 g/mol The molar mass of Al = 26.981…

Q: Part B: NazCO; Reaction: 1. Determine the experimental mole-to-mole ratio of NazCO3 to NaCl from…

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

Q: a hydrated CuSO4 salt was heated and thus dehydrated. Determine the % H2O by weight in the hydrated…

A: The number of moles is a ratio of the mass of a substance to the molar mass of the substance.…

Q: Part A Consider the reaction: 8H2S(g) + 402 (g)-→8H20(g) + S8(g) Find A[O2]/At. A[H2S]/At =…

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Q: Write the equations for the formation of (a) lead (IV) carbonate, (b) sulfur tetrafluoride and (c)…

A: Answer: Chemical equation of formation are the ones in which 1 mole compound forms from the standard…

Q: how may moles is in 26.8g of water?

A: Molar mass of water = 18.01528 g/mol Given mass of water = 26.8 g No. of mol is given by: No. of…

Q: determine the number of moles in 32 grams of oxygen gas

A: Data given: Mass of oxygen gas = 32 grams

Q: Mn (s) + 2 CUCI (aq) --> 2 Cu (s) + MnCl2 How many grams of Cu will be produced by 2.9 moles of Mn?…

A: In the question, the given reaction is: Mn (s) + 2 CuCl (aq) --> 2 Cu (s) + MnCl2. The Cu…

Q: Aluminum nitride, AIN solution reacts with solid calcium metal in a single displacement reaction.…

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Q: There is one mole of water in the beaker. A student measured the weight of the 1 mole of water of…

A: Molar mass: Molar mass is the measured weight per unit mole of a molecule. The formula to calculate…

Q: express the moles in the next equation N2+ 3H2 -> 2NH3

A: Given reaction, N2+ 3H2 --> 2NH3

Q: If people were to start counting by 100s from the second they were born and never stopped until they…

A: We know that, 1 year = 365 days 1 day = 24 hours 1 hour = 60 min

Q: (a) Determine the mass of sodium metal that contains the same number of moles as 87.2 g of copper…

A: (a) Determine the mass of sodium metal that contains the same number of moles as 87.2 g of copper…

Q: Natural gas is mostly composed of methane (CH4). In 6.07 g of CH4, how many millimoles of CH4 are…

A: Given, Natural gas is mostly composed of methane. Weight of methane =  6.07 g Molar mass of methane…

Q: Adding helium to a balloon increased its volume from 309.1 mL to 1.695 L. If the final number of…

A: Given data,  Initial volume of helium gas in the balloon ( V1) = 309.1 mL = (309.1/1000) L = 0.3091…

Q: A cylinder of neon gas, Ne, contains 220.5 grams of gas. How many moles of neon gas does the sample…

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Q: How many grams does 6.72 moles of aluminum nitrate weigh? Show all work and round your answer to two…

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Q: Lab Data Verify your calculation. In your set-up, do your units cancel? Did you report your data to…

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Q: 6) The purpose of weighing the cup and its contents again at the end of the experiment was to O…

A: In calorimeter, the cup used to be covered with a lid to make sure that no matter transferred from…

Q: If you spend 1 billion dollars per day, how many years would it take you to spend a mole of dollars?

A: Since 1 mole of dollars will have dollars given by  number of dollars = moles X Avogadro's number…

Q: ALab Data Verify your calculation. In your set-up, do your units cancel? Did you report your data to…

A: From the given data we are going to change it in standard form then using ideal gas equation we are…

Q: For the reaction 2 H2O → 2 H2 + O2, how many moles of O2 are produced with 1.45 moles of H2? Your…

A: Given  Reaction  2H2O   →  2H2   + O2 Number of mole of H2   = 1.45 mole  Number of mole of O2   = ?…

Q: How many grams does 4.46 moles of aluminum nitrate weigh? Show all work and round your answer to two…

A: Since we know that  Number of mole = mass /molar mass  So  Mass = number of mole × molar mass  By…

Q: Vehicle air bags require that a very specific amount of gas is created so that the gas inflates the…

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Q: The decomposition reaction of sodium bicarbonate or baking soda is an important chemical reaction…

A: Answer: volume of CO2 formed at STP is 3.8976 L. (Approx 3.9L)

Q: Aqueous HBr will react with solid NaOH to produce aqueous NaBr and liquid water . Suppose 57.4 g of…

A: The neutralization reaction between solid NaOH and aqueous HBr is given as:…

Q: What mass of Cl2 combines with 5.00 moles of Na? 2 Na + Cl2 --> 2NaCl. (mole to gram conversion)…

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Q: What is the ΔG of the following hypothetical reaction?     2A(s) + B2(g) → 2AB(g) Given: A(s) +…

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Q: The exhaust of an automobile contains 0.09 % nitrogen dioxide at 80 C. Express this concentration in…

A: Concentration of NO2 is 0.09% . Temperature = 80° C or 80 +273 = 353K Using ideal gas law, PV = nRT…

Q: A group of students collected 125 empty aluminum cans to take to the recycling center. If 21 cans…

A: The conversion of pounds to grams is given as

Q: Determine how many grams of oxygen will be reacted given 32grams of hydrogen H2 gas.

A: Given Mass of H2 gas  = 32 gram  Mass of O2 gas  = ? Molar mass of H2   =( 2 ×1 )…

Q: How many moles of hydrogen gas are generated by 0.039 grams of magnesium? Report the answer to four…

A: Given data : Mass of magnesium = 0.039 g Molar mass of Mg = 24.305 g/mol So,  Moles of Mg =…

Q: Fill in the coefficients (include a 1 where appropriate or a single space) to balance this chemical…

A: A balanced chemical equation contains equal number of atoms on both the sides of the equation.

Q: moles of iron are contained in 1.17 kg of iron

A: The mole is an amount unit which provides a specific measure of the number of atom or molecule in a…

Q: Use the following information to determine how many moles were produced? Round to two decimal…

A: The pressure of the gas is = 742.1 mmHg The volume of the gas is = 9.65 L The temperature of the gas…

Q: Part A Solve for x, where M is molar and s is seconds. (2.7 x 103 M-2s¬1)(0.22 M)³ Enter the answer.…

A: The given equation is,

Q: The chemical formula for potassium iodide is KI. A chemist measured the amount of potassium iodide…

A: Given:  KI produced = 676 g  To calculate:  no. of moles KI produced = ?

Q: 2. Calcium carbonate, when heated strongly in an open test tube, decomposes to yield both the…

A: Given data, Mass of CaCO3 and test tube before heating = 30.46 g Mass of contents and test tube…

Q: 2. Calcium carbonate, when heated strongly in an open test tube, decomposes to yield both the…

A: Given : Reactant = Calcium carbonate.                      Products = calcium oxide and carbon…

Q: The chemical formula for magnesium oxide is MgO . A chemist measured the amount of magnesium oxide…

A: Consider the given information is as follows; Mass of magnesium oxide (MgO) produced = 904. g Moles…

Q: A student is trying to figure out how many moles of potassium chloride are made from 4.0 grams of…

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Q: Mg(s)

A: Balance chemical reaction equation is  2Mg(s) + O2(g) -----> 2MgO  Molar atomic mass of Mg =…

Q: onvert to moles the mass of uric acid that is 0.3066 that causes gout and arthritis.

A: Number of moles of a substance can be obtained by dividing the mass by molar mass.

Q: A 0.9801 g sample of an unknown hydrate was heated to drive off the water. The remaining anhydrous…

A: Since the loss in mass of the salt is due to the removal of water only  hence mass of water…

Q: Use the following information to determine how many moles were produced? Round to two decimal…

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Q: When AgNO3 reacts with BaCl2, AgCl and BaNO3 are formed. How many grams of AgCl are formed when 5.0…

A: From the given mass of silver nitrate and barium chloride, the number of moles is calculated.

Q: Verify your calculation. In your set-up, do your units cancel? Did you report your data to the…

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

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.