Calculate the mass of scheelite (CaWO,) that contains a billion (1.0 x 10) oxygen atoms. Be sure your answer has a unit symbol if necessary, and round it to 2 significant digits.

Q: For the reaction below, Kc = 4.60 × 10⁻⁶. Note Kc is sometimes called K. What is the equilibrium con...

A: First of all we need to construct the ICE table. And using the Kc we can calculate the equilibrium c...

Q: Prepared 8 M of HCL in 500 ml, that density is 1.19 g/cm3 and percentage * ?% w/w is 37 The volume n...

A: Option C is correct answer. The volume needed is327.06 ml.

Q: From your point of view, express your idea on the word "Organic"

A: The word "Organic "really means the things that are natural or related to nature. In general, the wo...

Q: (b) What are oxidative addition and reductive elimination steps in a catalytic eycle?

A: 1. Oxidative addition is a process that increases both the oxidation state and coordination number o...

Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gas...

A:

Q: Give a rearrangement reaction equation to synthesize N-ethyl-2-methyl-buthylamide from the correspon...

A:

Q: A student is calculating the concentration of her standard solutions in order to create the calibrat...

A: Given: Volume of Fe3+ = 2.00 mL Concentration of Fe3+ = 0.194 M Volume of SCN- = 200 μL = 0.2 mL   (...

Q: The diagrams represent the equilibrium mixture for the reaction X,(g)+Y(g) X(g)+XY(g) at 500 K and 7...

A:

Q: 2. Using the Roman Numerals provided, rank the following compounds in order of increasing boiling po...

A: Boiling point can be defined as the temperature at which a liquid substance start converting into ga...

Q: Indicate how the concentration of each species in the chemical equation will change to reestablish e...

A: Equillibrium constant gives the relation between concentration of product and reactant at equillibri...

Q: What are acids often using in * .measuring alkalinity H2S04 and HCI. O H2S04, HCI and HNO3. O H2S04 ...

A: Alkalinity is the measure of a solution’s capacity to react with a strong acid (usually sulfuric aci...

Q: www-awu.dieks.com/aiekscgi ARL O THERMOCHEMISTRY Calculating specific heat capacity A chemist carefu...

A: Given,  The mass of a substance = 623.0 g.       The heat needed to increase the temperature from 2....

Q: Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic i...

A: 1) Br2 this molecule is non-polar as the dipole moment of the molecule is zero.

Q: Which of the following statements concerning an 131I atom and a 131Xe atom is / are CORRECT? (1) Th...

A:

Q: Find out relationship between given both subpart along with explanation

A:   Isomers : Compounds which are having same molecular formula but differ in their properties are cal...

Q: O THERMOCHEMISTRY Understanding the definitions of heat and work ARL A mixture of gaseous reactants ...

A:

Q: Draw the condensed formula or skeletal structural formula for the following compounds: (a) 2-methyl...

A: (a) 2-methylpentanoic acid (b) Ethyl butanoate

Q: thermometer A 58.2 g sample of polystyrene is put into a calorimeter (see sketch at right) that cont...

A:

Q: nat mass of cart

A:

Q: A compound Y containing carbon, hydrogen and oxygen only have the following composition by mass: C: ...

A:

Q: How many electrons in an atom could have these sets of quantum numbers? n= 3 electrons n = 5,€ = 1 e...

A:

Q: Determine the type of reaction shown below: Br Br2, H20

A:

Q: Measurements show that the energy of a mixture of gaseous reactants increases by 301. kJ during a ce...

A: Work done on mixture = - 104 kJ ∆U = +301 kJ  

Q: A standard galvanic cell is constructed in which a Sn2+ | Sn half cell acts as the cathode. Which of...

A: Solution  1.Compare the reduction emf of both  Sn2+/Sn : E°red = -0.14V  Ag+/Ag : E°red = 0.80V   We...

Q: (c) State Hess's law by giving a suitable example.

A:

Q: 1. What weight of KCI and H₂0 are needed to make 250 g. of 5 % solution?

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

Q: Calculate the difference, in kilojoules, between AE and AH for the following exothermic reaction at ...

A:

Q: *.There are main methods for protection metals from corrosion *... Seven. Four. Two. O

A: Methods of protection of metals from corrosion.

Q: (Q106) Consider the decomposition of nitrosyl bromide into nitrogen monoxide and bromide gas, which ...

A:

Q: 2. Calculate the solvation free energy AG of Mg" using the Born theory. Given that the ionic radius ...

A: Solution: Data given: Ionic radius of Mg2+ is 0.072 nm. Calculate solvation free energy?   

Q: Gaseous ammonia chemically reacts with oxygen (0,) gas to produce nitrogen monoxide gas and water va...

A: Number of moles of water = 0.080 mol  Number of moles of ammonia = ? 

Q: There are.. main methods for protection metals from corrosion. * Four. O Seven. O Two.

A: Corrosion is a natural process in metal react with atmosphere and convert into more stable oxide, hy...

Q: Liquid octane (CH;(CH,) CH;) reacts with gaseous oxygen gas (02) to produce gaseous carbon dioxide (...

A: Mass of carbon dioxide (i.e. experiment yield)  = 4.57 g  Mass of octane = 2.28 g  Mass of oxygen ga...

Q: ALKENE/ ALKYNE REAGENTS(S) AND MAJOR PRODUCTS(S) CONDITIONS ? OH

A:

Q: (b) What are oxidative addition and reductive eiimination steps in a catalytic cycle? (c) How many s...

A:

Q: You were asked to determine the acid content of vinegar and soda samples. You performed a simple aci...

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for yo...

Q: One way of separating oxygen isotopes is by gaseous diffusion of carbon monoxide. The gaseous diffus...

A:

Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gas...

A:

Q: Draw the condensed structural formula or skeletal formula of the hemiacetal and acetal products form...

A: Hemiacetal and acetal are protected  forms  of aldehyde carbonyl  group by reaction  with alcohol  i...

Q: How many ions would form if the following could dissolve in solution? (NHa)2S

A:

Q: Cite four real-life applications of cooling curve and determination of the freezing point of a subst...

A: A substance  generally exists in one of the three states of matter that is solid, liquid, and vapor....

Q: TRUE OR FALSE: Metals at the lower position in the Ellingham diagram (ex: Aluminum Magnesium and Ca...

A:     Statement : Metals at lower position in the Ellingham diagram , are not stable and easily forms ...

Q: photo of your answer (in jpg) and send back via the submission folder in Soul. Section B: Short ques...

A:

Q: 1. Which is the most basic atom on this molecule and why? 2. Question 4: Provide the missing product...

A:   Ans : (A)  1. This structure is Benzimidazole is a heterocyclic aromatic organic compound.  2.  Th...

Q: Cathode is ... terminal. * Negative. Positive.

A:

Q: Why does hexane have the lower boiling point than acetic acid, when in fact, hexane has a high molec...

A: Boiling point is directly proportional to H-bonding. More H-bonding, higher will be the boiling poin...

Q: blö 5 How many grams of Na3PO4 required * ?to prepare 8 N in 500 ml 323.6 gm. 218.6 gm. O 656 gm. O

A: Given that , Normality of the solution = 8N Volume of solution is = 500 ml. we have to calculate how...

Q: Ammonium perchlorate (NH,cio,) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts wi...

A:

Q: What are acids often using in measuring alkalinity. * O H2SO4 , HCl and HNO3. O H2SO4 and HNO3. O H2...

A: Alkalinity of water is generally determined by titrating a water sample with a strong acids.

Q: How many clarification of water. O Three. O Four. O Two.

A: Option A is correct answer. three.

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.