A Styrofoam cup was analyzed in a lab and found to contain 92% by mass carbon. How much carbon can be found in a stack of polystyrene cups with a total mass of 569 grams? 0618 grams O 520 grams 0456 grams O 535 grams 0575 grams

Q: Choose the correct products or choose NR (for both spaces in that reaction) for each of the…

A: In all the reactions give, we have a metal along with another metal salts. The reaction will only be…

Q: For numbers 20-25: Nitric acid is prepared from the reaction of 69.0 grams of nitrogen dioxide with…

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Q: What chemical species is primarily responsible for the cleaning action to remove volatile organic…

A: Volatile Organic molecules released as gases into atmosphere from certain solids or liquids and have…

Q: that shows the formation of cyclohexane from the elements carbon (C) and hydrogen (H2 ).

A: Applying hydrogenation of benzene.

Q: An unknown contagion made of Carbon, Hydrogen, Nitrogen, and Oxygen needs to be identified. A…

A: Given : The compound is made up of Carbon i.e C, Nitrogen i.e N, oxygen i.e O and hydrogen i.e H.…

Q: Calculate the AHorxn for the combustion of acetylene C2H2 +02 2 CO2 + H20 2

A: Enthalpy of combustion of acetylene is described as follows. Taken the standard data which is not…

Q: 53: Human cells obtain energy from a reaction called cellular respiration. Balance the skeletal…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: ethanol has a molecular C2H5OH. A sample of ethanol has a mass of 2.3 grams. the sample was…

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Q: 1. Which of the following statements is correct? * Fuels are always hydrocarbons O Humans do not…

A: Answer

Q: How many different chemical compounds and elementary substances are represented in the image? A. O…

A: Elementary substances are made up of only one type of element. Chemical compound is a substance…

Q: Match the structural formula to the chemical formula for this substance. OCH2CI2 OC H3CI O CH2C2 O…

A: Given that : We have to match the structural formula to the chemical formula of the substance : The…

Q: What is the state of dibromomethane at 110°C? O solid liquid gas

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Q: For the following reaction, what does the balanced equation look like? aCr20,2- + bH + cPu 3+ +…

A: The given equation is, The unbalanced equation is, The oxidation numbers are assigned on each atom…

Q: What mass in grams of magnesium oxide is produced from 2.00 mol of magnesium? What mass of glucose…

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Q: Which is the importance of carbon in nature?

A: Interpretation - To tell about the importance of carbon in nature-   Introduction -  Carbon is a…

Q: detecting halogens

A: Halogens can be detected in organic samples by carious method, flame test, Beilstein test etc.

Q: If you burn 40 g of oil and produce 30 g of carbon dioxide, what is the total mass of all the…

A: In the case of combustion of hydrocarbon, for example, methane, when the 1 mol of methane is burnt,…

Q: Identify the principle component(s) of the essential oil Ground Rosemary. Determine the chemical and…

A: Ground Rosemary essential oil is an essential oil which is extracted from rosemary.  The main…

Q: The combustion of solid glucose (CH12O6) CSH12 O6 (s) 1

A: Combustion :- Burning a substance in excess of air or oxygen gas is called as combustion . In the…

Q: 2. Make a list of some facts in this article that relate to what we have studied so far. What We…

A: 1  As bectrium are able to substitute phosphorus with arsenic it indicates that chemistry of arsenic…

Q: Which of the following metals will produce the most amount of hydrogen gas? A. 2 moles of Na B. 1…

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Q: Post-Assessment from 8.5D Chemical Formulas Save Question 3 Water is an example of a compound. Which…

A: Chemical compound is a chemical substance composed of many identical Molecules  composed of atoms…

Q: From the following chemical equation: Cl2 F+ G+H FeCl3 i) Draw the structure of F, G and H. ii)…

A: The reaction given is,

Q: The total number of atoms in C2H5OH

A: C2H5OH is the formula of Ethanol. Ethanol is also called Ethyl Alcohol.  It can also be written as :…

Q: Give 5 examples of organic compounds in the household which changes in the same way as sugar and…

A: Sugar and Benzoic acid are both organic compound having made of carbon and hydrogen as skeleton .…

Q: what are the research gaps in carbon trading?

A: Answer - Carbon trading - Carbon trading is the process of buying and selling permits and credits…

Q: Which of the following is a chemical property of carbon? O It is a solid at room temperature and…

A: A multiple choice question based on chemical property, which is to be accomplished.

Q: Pollutant C is an organic compound group with the following physical and chemical properties. WS (25…

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Q: Use the equation in the Example box on page 34 of the lab manual to answer this question. For a 100…

A: The question is based on reaction stoichiometry. we have to calculate mass of phosphorus pentoxide…

Q: What is the balanced equation for sugar, C12H22O11, breaks down to carbon and water when heated

A: Since we know that sugar when heated in presence of air it break down into carbon dioxide and water…

Q: Given the following balanced chemical equation, calculate the theoretical yield of carbon dioxide…

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Q: 2Na(s) +2H2O(l) → H2 (g) + 2Na+(aq) +2OH-(aq) Considering this equation, what evidence would you…

A: Sodium is a very reactive metal and it reacts with water vigorously. In the given reaction the…

Q: NH2 HONO 1 2 0°C

A: HONO is formed by the reaction of HCl on NaNO2

Q: When the equation Fe2(C204)3 → FeC204 + CO2 is balanced with the smallest integer coefficients, the…

A: Since you have asked multiple type questions, we will solve only first  questions for you. If you…

Q: Given the following equation: Na20 + H2O ---> 2 NaOH, How many grams of NaOH is produced from 1.20 x…

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Q: ake the requested calculation: 2 CAH10(g) + 13 0-(g) --> 8 CO2(g) + 10 H20(1) 58.124 32 44.011…

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Q: Oxide % Composition Calcium Oxide (CaO) 48.21 Phosphate (P2O5) Magnesium oxide (MgO) Silicon Oxide…

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

Q: .......... is the smallest chemical compounds found in crude oil in terms of molecular weight. O gas…

A: Crude oil is a compostion of hydrocarbons.

Q: Determine the products and the type of chemical reaction. 1. Mg + I2 → 2. NaOH + HC\04

A: Given reactions: Mg + I2 →  NaOH + HClO4 → We have to determine the products and the type of…

Q: what are the organic molecules?      H                      H   H  H H   C   C (3 lines) C   C   C…

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Q: Phosphate-containing fertilizers, when utilized in agriculture, provide a significant source of…

A: Phosphate containing fertilizers provides phosphorous which are widely used in agriculture for the…

Q: 1. Match the terms given in Column I with the compounds given in Column II.  Column I (i) Acid…

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Q: 4. Two engineers are serving as trainees in a laboratory of a pharmaceutical company. One of their…

A: Given: % of C in the sample = 59.0 % % of H in the sample = 5.0 % % of N in the sample = 22.9 % % of…

Q: 1. What is the mole ratio of aluminum sulfate to sulfuric acid? The reaction can be written as…

A: The reaction can be written as follows. Al2O3 (s) + H₂SO4 (aq) →> Al2(SO4)3 (aq) + H₂O (1)

Q: A mixture was found to contain 2.10 g of SIO2, 1.38 g of cellulose, and 3.64 g of calcium carbonate.…

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Q: Which compound of calcium is used for swimming pool water and sewage treatment

A: compound of calcium is used for swimming pool water and sewage treatment is (B) Calcium…

Q: What mass (in grams) of magnesium oxide can be produced from igniting 1.5 g of Mg in Oxygen? (MM of…

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: This refers to the residue left from the complete combustion of the sample in the open air at 700°C±…

A: During the analysis of coal generally we use two methods of analysis ; Ultimate analysis Proximate…

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.