b if [OH ] — 7.6 х 10 4 м then РОН =

Q: CIO4)2-6H2O is hydrated whereas Ni(CIO4)2 is aCl contains an bond whereas O2(g) contains a bond…

A: Since you have asked a question with  multiple sub-parts, we will solve  first three sub-parts for…

Q: Suppose you start with 1.80 g of MgCO3·5H2O, after complete dehydration how many grams of the sample…

A:

Q: In 1961, scientists agreed that the atomic mass unit (amu)would be defined as the mass of an atom of…

A: Yes, the Avogadro number is changed and now becomes bigger than previously. Yes, the definition of a…

Q: It is estimated that we breathe around 5.0 x 1021 molecules of 0, in a single breath. What mass of…

A: Given: Molecules of O2 in a single breath = 5.0 × 1021. Molar mass of O2 = 32 g/mol

Q: A container has 5.30 x 1023 molecules (aka atoms) of bromine gas. Calculate the mass (in g) of…

A: A container has 5.30 x 1023 molecules (aka atoms) of bromine gas. We have to calculate the mass (in…

Q: mass

A:

Q: If a sample of B10H12[N(CH3)3]2 is found to contain 7.25 · 1019 B atoms how many moles of…

A:

Q: what is the weight in grams of 4.30 x 10^14 CF4 molecules?

A:

Q: The drawing below shows a mixture of molecules: key carbon hydrogen nitrogen sulfur oxygen chlorine…

A: Equation given is  2H2(g) + O2(g) ——> 2H2O(g)  2 mole of H2 react with 1 mole of O2

Q: 10. Which of the following does not match the others? 168 (A) 67.2 3.88 1000 100 10 All, (M)/mol)…

A: ◆ Electronic Configuration is the distribution of electrons in the energy levels of the atom. The…

Q: The Black Horse space plane is a concept space craft that is unique in many respects. Its design for…

A:

Q: (a) Based on the following equation, calculate the mass of calcium phosphate required to produce…

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Q: In an experiment, 34.8243g of copper (II) nitrate hydrate, Cu(NO3)2•zH2O was heated to a constant…

A: Given, mass of copper (II) nitrate hydrate is 34.8243g and when heated the mass is 27.0351g.

Q: What is the percentage composition of: (a) Cl in Chloric acid (Cl=35,H=1, O=16) (b) Na is sodium…

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Q: d e BeCl2 (s) + H₂O(g) → BeO(s) + HCl(g) BeCl₂ (s) + H₂O(g) →→→ BeO(s) + BaH₂ (s) + H₂O(l) → Ba(OH)2…

A: Check the number of elements on both side and try to balance it.

Q: I already received help with A, B, and C but I still need the explanation and solution to subpart D.…

A: 1 mole = 6.023 * 10^23 atoms = Avogadro No

Q: Calculate the number of atoms of carbon (C) in 475 cm3 of the colorless gas butane at 0 °C and…

A:

Q: (a) Atoms are very small compared to objects on the macroscopic scale. The radius of a aluminum atom…

A:

Q: Ammonia (NH) is an important compound since it is used in large amounts for the manufacture of…

A: Given 1.2 mol of Nitrogen and Hydrogen gas  30% of ammonia is reacted  We have to find moles of…

Q: 3. The radius of an atom of gold (Au) is about 1.35 A°. (a) Express this distance in nanometers (nm)…

A: For the first problem just convert the units to the required one . In the 2nd problem, if we line up…

Q: Gypsum, CaSO4 · 2 H2O, is used to manufacture cement. What is the mass percent of water in this…

A: Given :-  molecular formula of gypsum =  CaSO4 · 2 H2O  To calculate :-  mass percent of water in…

Q: 6) 0.025 MOL OF AN IONIC COMPOUND AlaSp CONTAINS o.05 MOL CATIONS AND 4.5x1022 anions. Given: molar…

A:

Q: nediamine (CH16N2) is one of the starting materials for the p red from adipic acid (CGH1004) by the…

A: Molar mass of adipic acid = 146 g Molar mass of C6H16N2 = 116 g Form balanced reaction,  146 g…

Q: Balance the following equations a) Ca,P₂(s) + H₂O(1)→ Ca(OH)₂ + PH3 b) Al,C, (s)+ H₂S(g) → CH.(g) +…

A: Balance chemical equation can be define as a reaction in which number of atoms of all the elements…

Q: Br CF3CH,OH ?

A: This is an example of nucleophilic substitution reaction (SN¹). in first step,  loss of bromide ion…

Q: What is the mass of 9.19X10^24 molecules of carbon dioxide?

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Q: -SO,Na СHCI; ? + КОН > ? +

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Q: Mg(OH)2(s)+2HNO3(aq)→   the balanced chemical formula?

A: Above reaction is double displacement reaction i.e neutralization reaction.

Q: In the case of incomplete combustion, the mass of carbon in the compound is the sum of carbons in…

A: Given, A Compound contains, Carbon, hydrogen and nitrogen mass of the compound = 0.1156 g Mass of…

Q: A 161 g sample of MnCl₂·nH₂O yields 112 g of the anhydrous compound after heating. Determine n in…

A: A 161 g sample of MnCl2.nH2O yields 112 g of anhydrous compound after heating. We have to determine…

Q: How many equivalents of O²⁻ are there in 2 moles of Al₂O₃?

A: Al2O3 is aluminium oxide.

Q: What percentage of MgCl2 * 6H2O is water?

A: Molar mass of MgCl2.6H2O = 203.3 g/mol mass of 6 H2O =6 X  molar mass of water…

Q: How many moles of Ba(OH)2 are present in 215 mL of 0.800 mol L Ba(OH)2? Express your answer…

A: Given: Volume of Ba(OH)2 = 215 mL = 0.215 L Concentration of Ba(OH)2 = 0.800 mol/L

Q: What is the mass of 3.5 x 10^-3 molecules of copper (II) carbonate? Use correct significant figures…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: The amount of acetylsalicylic acid in a single aspirin tablet is 325 mg, yet the tablet has a mass…

A: where,P=Pressure V=VolumeR=Universal Gas constantT=Temperaturen= Moles

Q: Classify the solid state of the following substances as ionic crystals, covalent crystals, molecular…

A: Solids are classifed as Ionic solids, covalent solids, molecular solids and metallic solids. This…

Q: (a) (b) (c) 2 Br Br Br 1) 2) MgBr How CuLi

A:

Q: What is the total number of carbon atoms on the right-hand side of this chemical equation?…

A: To answer this question we need to count the total number of atoms of carbon (i.e.- "C") on the…

Q: I only need parts B and D, thank you!   The following quantities are placed in a container: 1.98 ×…

A: Solution - (b) According to the question - Given values are - The moles of atoms of H =…

Q: One method used in the production of H2 gas is to put the coal into an incomplete combustion…

A: A balanced reaction has equal number of atoms of each elements on either side of the reaction. The…

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.