, Kgoal = ?

Q: Use dimensional analysis to show all work: How many grams of excess reagent is used and how many…

A: Limiting reagents are those reagents that are completely consumed during a chemical reaction. It…

Q: Question5 DDT, an insecticide harmful to fish, birds, and humans, is pre duced by the following…

A: Mass of chlorobenzene = 1142 gm  Molar mass of chlorobenzene = 112.5 gm/mole  Number of moles of…

Q: determine the number molecules of compounds or atoms for 25kg CO2

A: Given :- mass of CO2 = 25 kg  To calculate :- number of molecules of CO2  number of moles =…

Q: Acetylene gas is 92.3% carbon and 7.7% hydrogen (by mass), and its miler mass is 26 g/mol. What is…

A: A numerical problem based on molecular formula determination, which is to be accomplished.

Q: Part A If the student collected 3.40 g of acetone and the theoretical yield is 3.67 g. what is the…

A: Percentage yield can be calculated through the ratio of actual yield to the theoretical yield of a…

Q: The specific heat capacity of lead at 25°C is 1.290×10-1 J/g/K. Answer the following: (a) For a…

A:

Q: with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O . What is the…

A: The question is based on the concept of Reaction Stoichiometry.   We have to identify the limiting…

Q: Calculate percent yield, show work please :) 2. Theoretical: 548.6 g Actual: 459.75 g

A:

Q: Calculate percent yield, show work please :) 3. Theoretical: 19.1 g Actual: 5.7 g

A: given  theoritical yield= 19.1g actual yield = 5.7g

Q: Methane gas (CH4) burns in oxygen gas (O2) to produce carbon dioxide gas (CO2) and water vapor…

A: Answer  Chemical reaction for the combustion of Methane

Q: Theoretical Yield = 181.5 Actual = 143.0 g % Yield =

A: The percentage yield of the product is calculated by the following formula:

Q: How many g CH₂ (methane) must be fully combusted according to the following reaction to transfer…

A:

Q: Liquid hexane  CH3CH24CH3  reacts with gaseous oxygen gas  O2  to produce gaseous carbon dioxide…

A:

Q: Gaseous ethane (CH3CH3) reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and…

A: The reaction of gaseous ethane with gaseous oxygen is as follows: CH3CH3(g) + O2(g) → CO2(g) +…

Q: Consider the unbalanced reaction NiS₂(s) + O₂(g) --> NiO(s) + SO₂(g) When 10.7 g of NiS2 react with…

A:

Q: Synthesis and Packaging (Need answer) - Balanced Chemical Equation: - % composition by mass of each…

A: Given :-  Active Ingredient:- precipitated sulfur (ointment) Raw Materials:- 500 g calcium…

Q: Balance the following equation. What are the missing coefficient? ___NH3(g) +____O2 (g)---> ____N2…

A: Here ammonia is oxidised in presence of oxygen and converted to nitrogen.

Q: [References] Use the References to access important values if needed for this question. For the…

A: The balanced reaction taking place is  CH4 + CCl4 -----> 2 CH2Cl2  Hence from the above reaction…

Q: A student was synthesizing aspirin in the laboratory. Using the amount of limiting reactant, she…

A: Here we are required to find the percentage yield for the synthesis of aspirin

Q: In an effort to produce aspirin, 21.5g of salicylic acid is reacted with 21.5g of acetic anhydride…

A: Given that -  Mass of salicylic acid, C7H6O3   = 21.5 g  Mass of acetic anhydride , C4H6O3 = 21.5 g…

Q: Percent yield of chemical reactions Gaseous butane (CH;(CH,)¸CH;) reacts with gaseous oxygen gas…

A:

Q: You are given a mixture of CUCO, and CuO. You place the mixture in a crucible and heat it to…

A:

Q: A process for synthesizing dichlorodifluoromethane (CCl2F2), a compound once widely used as a…

A:

Q: What is the molality of thium ions in a 0 302 m solution of LiPO. assuming the compound dissociates…

A: We know , # Molality = moles of substance/ mass of Solvent in Kg   The molality of Li3PO4 = 0.302 m…

Q: Most common source of copper (Cu) is the mineral Chalcopyrite(CuFeS2). How many kilograms of…

A:

Q: if 63.8g of CuNo3 and 40.2g of H2SO4 are availble in the following equation  CuNO3 + H2SO4 -->…

A: Copper(I) nitrate reacts with sulfuric acid to form copper(I) sulfate and nitric acid. The equation…

Q: Determine the mass of chlorine in the original sample as the difference in mass between the…

A:

Q: Balance the following equation by writing the coefficient for HF() BF3(g). H20(1) B203( s) + HF() →…

A:

Q: Acetylene (C,H,) gas is often used in welding torches because of the very high heat produced when it…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: Gaseous ethane  CH3CH3  reacts with gaseous oxygen gas  O2  to produce gaseous carbon dioxide…

A: Moles of ethane and Oxygen are calculated for the given reaction as follows,

Q: Conversion 95 mol H2O to kg H2O

A: Given, Moles of water = 95mol

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.