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The formula of a hydrate of barium chloride is $\mathrm{BaCl}_{2} \cdot x \mathrm{H}_{2} \mathrm{O} .$ If $1.936 \mathrm{g}$ of the compound gives 1.864 g of anhydrous $\mathrm{BaSO}_{4}$ upon treatment with sulfuric acid, calculate the value of $x$

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The value of $x$ is 2

Chemistry 101

Chapter 3

Mass Relationships in Chemical Reactions

Chemical reactions and Stoichiometry

Aisha A.

January 23, 2022

Calculate the number of moles of copper oxide 2.5g of copper oxide reacts with excess sulfunc acid

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A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. Chemical reactions can be either spontaneous, requiring no input of energy, or non-spontaneous, typically following the input of some type of energy, such as heat, light or electricity. Chemical reactions are usually characterized by a chemical change, and they yield one or more products after the reaction is complete. Chemical reactions are described with chemical equations, which symbolically present the starting materials, end products, and sometimes intermediate products and reaction conditions. Chemical reactions happen at a characteristic reaction rate at a given temperature and chemical concentration. Typically, reaction rates increase with increasing temperature because there is more thermal energy available to reach the activation energy necessary for breaking bonds between atoms.

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In chemistry, a combination reaction is a chemical reaction in which two or more reactants combine to form more than one product. In a decomposition reaction, one reactant splits into two or more products.

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Barium chloride dihydrate …

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We have given information b, a c l 2 into x, h, 2, o plus h, 2 s, o 4 b, a s o 4 plus 2 t l plus x, h, 2, o the mass of barium chloride and o x, h, 2. O is 1.936 gram and the mass of barium sulfite is 1.864 grams. We have to find x. So first we have to find the number of moles of moles of barium sulfate and the molar mass of barium sulphate is molar. Mass of barium sulfate is equal to molar mass of barium plus molar mass of sulphur plus 4 into molar. Mass of oxygen is equal to molar. Mass of barium is 137.327 gram per mole plus smaller mass of sulphur is 32.065 gram per mole plus 4 into molar. Mass of oxygen is 15.99 gram per mole, so the calculated molar mass of barium sulfate is 233.388 gram per mole and the number of moles of barium sulfate is the number of moles of barium. Sulfate is equal to mass of barium sulfite divided by molar mass of barium. Sulfate is equal to mass of barium. Sulfite is 1.86864 gram. Divided by molar mass of barium sulfate is 233.388. Gram per mole is qual to 0.799 into 10, raised to the power 2 moles of barium sulfate and since 1, mole of barium chloride into x to produce 1 molobarium sulfate 0.799 into 10 raised to the power minus 2 moles of barium sulfate will be produced by 0.799 into 10 raised to the power minus 2 moles of barium chloride into x, h, 2. O now we will findthe molar mass of barium chloride x, h, 2, o s. Smaller mass of barium chloride is equal to mass of barium chloride. Divided by mole of barium number of molo. Barium chloride in hydrated form is equal to 1.936 gram divided by 0.799 into 10. As to the power minus 2, mole is equal to 242.403. Gram per mole is the molar mass of hydrahydratete barium chloride. So finally, we can find the molar mass of watches and x. The molar mass of barium chloride in water is molar. Mass of barium chloride is equal to mass of barium plus 2 into molar. Mass of chlorine is equal to mass of barium is 1 hue. 37.327 gram per mole plus 2 into molar. Mass of chlorine is 35.453. Gram per mole is equal to molar. Mass of barium chloride is 2 hundre, 08.233 gram per mole, and next we have to find the molar mass of water is equal to 2 into molar. Mass of hydrogen plus molar mass of oxygen is equal to 2 in 2. Molar mass of hydrogen is 1.008 gram per mole, plus molar mass of oxygen is 15.999 gram per mole is equal to 18.015. Gram per mole is the molar mass of water. The molar mass of x x, h, 2. O is a molar mass of x, h, 2. O is equal to molar mass of barium chloride into x, h 2, o minus molar mass of barium chloride is equal to 242.403 gram per mole. Minus 208.233 gram per mole is equal to 34.170 gram per mole. So therefore, the value of x is value of x. Is x is equal to m x, h 2 o divided by molar mass of molar mass of h, 2 o divided by molar mass of h, 2 o is equal to 3 hun 4.170 gram per mole divided by 18.015 gram per mole is equal to approximately equal To 2, so the value of x is the final result. Is the value of x x is 2.

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