A chemist measured out 8.25 g of copper(II) bromide tetrahydrate (CuBr2 ·4 H2O). How many moles of CuBr2 · 4 H2O were measured out? Answer in units of mol. 010 (part 2 of 4, How many moles of Br¯ ions are present in the sample? Answer in units of mol. 011 (part 3 of 4 How many water molecules are present in the sample? Answer in units of molec.

Q: Ch., 4) A 11.31 g sample of a competitor's "SonicBloom" fertilizer is analyzed for its phosphorus…

A:

Q: he following equation shows the reaction of baking soda (NaHCO3) and hydrochloric acid (HCl).…

A: The mole is an amount unit similar to familiar units like pair, dozen, gross, etc. It provides a…

Q: Many metals react with halogens to give metal halides. For example, iron reacts with chlorine to…

A: Consider the given information is as follows; Mass of iron (Fe) = 10.0 g Mass of Cl2 required for…

Q: Acrylonitrile, C3H3N, is the starting material for the production of a kind of synthetic fiber…

A:

Q: The catalytic converter that is standard equipment on American automobiles converts carbon monoxide…

A: Balanced chemical equation: 2CO + O2 ------> 2CO2  Number of moles of O2 =  number of moles of…

Q: The balanced equation for the Haber Process is shown below. In this reaction, nitrogen and hydrogen…

A: Applying concept of moles to calculation.

Q: For the reaction C+ 2H₂ → CH4, how many moles of hydrogen are needed to make 155.6 grams of methane,…

A: The number of moles of a compound is determined by the balanced chemical reaction. The mass of a…

Q: 1. Write i) the molar mass ii) two conversion factors generated from each molar mass of the…

A:

Q: Alomic/Molar 6.02 x 10 Mass Grams Moles Atoms or Molecules Atomic/Molar Mass 6.02 x 10 1. Given…

A:

Q: Write the equation for this reaction, then balance the equation. b.Calculate the grams of lead (II)…

A: Mole concept.

Q: Many metals react with halogens to give metal halides. For example, iron reacts with chlorine to…

A: Given  Reaction  Fe(s)  + Cl2(g)   →  FeCl2(s Mass of Iron = 10 gram  Mass of Cl2   = ?  Number of…

Q: Write the balanced equation, then outline the steps necessary to determine the information requested…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: 1. ASPARTAME, CHN,Os, is an artificial sweetener that is 160 times sweeter than sucrose (sugar or…

A:

Q: Urea, CH,N,O, is used as a nitrogen fertilizer. It is manufactured from ammonia and carbon dioxide…

A: Mass of NH3  = 10.0 g  Mass of CO2 = 10.0 g  Maximum quantity of urea (in grams) = ? Excess reactant…

Q: You perform a combustion analysis on a 255 mg sample of a substance that contains only C, H, and O,…

A: Given information: Mass of sample = 255 mg Mass of carbon dioxide = 561 mg Mass of water = 306 mg

Q: Suppose that the percentage yield of BrCl is 90.0%. How much BrC can be made by reacting 338 g Br2…

A:

Q: 3 Cu   +   8HNO3   g 3 Cu(NO3)2    +  2 NO   +  4  H2O In the above equation how many moles of NO…

A: number of moles of NO can be made when 40 moles of HNO3 are consumed is given below

Q: 3 Cu + 8HNO3 --> 3 Cu(NO3)2 + 2 NO + 4 H₂O In the above equation how many moles of water can be made…

A:

Q: Alex has a big black tattoo of a teddy bear on their back. Iron (II, III) oxide was used as the…

A:

Q: A chemist reacted 11.50 grams of sodium metal with an excess amount of chlorine gas. The chemical…

A: Given Mass of Na metal = 11.5 g Percentage yield = 85%

Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

A: Given: When morphine undergoes combustion, carbon dioxide is produced. Mass of mixture            =…

Q: empirical formula of bismuth chloride?

A:

Q: 4.2 A compound that can be sampled or "smelled by sniffing your armpits or someone's unwashed feet,…

A: The percent of carbon, Hydrogen, Oxygen is 55.80 %, 7.03 %, 37.17 % respectively

Q: lodine chloride, ICI, can be made by the following reaction between iodine, L, potassium iodate,…

A: A balanced chemical reaction is one that has equal number of atoms of an element in reactants and…

Q: How many hydrogen atoms are in the compound (NH4)2CO3? Alex has a big black tattoo of a teddy bear…

A: #Q.1: The given chemical formula is (NH4)2CO3.

Q: 3 Cu + 8HNO3 --> 3 Cu(NO3)2 + 2 NO + 4 H₂O In the above equation how many grams of water can be made…

A:

Q: Ca + 2H2O ? Ca(OH)2 + H2 Using the equation above, how many molecules of H2 could be produced of 50…

A:

Q: 3. Which of the following statements is FALSE for the chemical equation given below in which…

A:

Q: Based on the balanced reaction: 2 Al + 3 Cl2→ 2 AlCl3, what is the maximum number of moles of AlCl3…

A: The number of moles of Al and Cl2 is 2.11×101 mol and 1.990×101 mol, respectively.

Q: 2. Alex has a big black tattoo of a teddy bear on their back. Iron (II, III) oxide was used as the…

A: Given:  The chemical formula is :  Fe3O4 sol a)   molar mass  =  3 Fe + 4 O =  (3 x 55.84)  +  (4 x…

Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

A: Molar mass of morphine is 285.34 g/mol. When a mixture of NaCl and morphine undergoes combustion,…

Q: Your doctor has diagnosed you as being anemic—that is, as having too little iron in your blood. At…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Liquid nitromethane was once widely used as an explosive but is now much more common as a fuel for…

A:

Q: (a) One molecule of the antibiotic penicillin G has a massof 5.342 x 10-21 g. What is the molar mass…

A:

Q: In the recipe for mayonnaise, the phospholipids in the egg yolk act as emulsifiers. If you assume…

A: Given that : Weight of one egg yolk = 10 g 33% of egg yolk is fat, so, 33% of 10 g = 3.3 grams

Q: Leaded gasoline contains an additive to prevent engine "knocking". However, because of the…

A: Given data: Mass of sample = 12.1 g mass of CO2 = 30.2 g mass of H2O = 14.8 g

Q: S    +   6 HNO3  -->   H2SO4   +  6 NO2   +   2 H2O In the above equation how many moles of water…

A: First We have to determine moles of nitric acid.

Q: How many moals of c7h602 are needed to make 10 Moles of co2

A: Given : Moles of CO2 = 10 mol. And the compound used to produce CO2 is C7H6O2.

Q: Consider the reaction 4 Al + 3 O2 → 2 Al2O3. How many moles of O2 are needed to make 10.0 moles of…

A:

Q: 3. The energy in our bodies mainly comes from carbohydrates, which are broken down into simple…

A:

Q: For the reaction C + 2H2 → CH4, how many moles of hydrogen are needed to make 170.6 grams of…

A:

Q: A chemist reacted 17.25 grams of sodium metal with an excess amount of chlorine gas. The chemical…

A: Sodium reacts with chlorine to form sodium chloride. The equation for the balanced chemical reaction…

Q: For many years, the extraction of gold - that is, the separation of gold from other materials -…

A: Given,

Q: 1. Ethanol, C2H6O, is added to gasoline to produce ‘gasohol’, a fuel for automobile engines. How…

A: Note : As per our guidelines we are supposed to answer first question. Please repost  other question…

Q: how do i do this

A: The given reaction is shown below.

Q: 2 NH3 + 3 CuO → 3 Cu + N₂ + 3 H₂O In the above equation, how many grams of N₂ can be made when 10.9…

A:

Q: How many moles of Mg(OH)2 are present after the reaction is complete? Express your answer in moles…

A: Given 7.55 g of Mg(OH)2 reacted with 25mL of 0.195M HNO3  We have to tell the number of moles of…

Q: A vitamin syrup for infants contains 27.44 mg of zinc sulfate monohydrate (ZnSO4.H2O) and 100.00 mg…

A: 1 mole = 6.022×1023 [ Avogadro's number ] The mass of one mole of molecules of a substance is called…

Q: 3 Cu + 8HNO3 →3 Cu(NO3)2 + 2 NO + 4 H₂O In the above equation, how many grams of water can be made…

A: Given,  Moles of HNO3  = 17.1 moles

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.