The iodide ion is a dietary mineral essential to good nutrition. In countries where potassium iodide is added to salt, iodine deficiency (goiter) has been almost completely eliminated. The recommended daily allowance (RDA) for iodine is 150 mg/day. How much potassium iodide (76.45% I) must you consume to meet the RDA?

Q: Ariana plans to react a sample of magnesium carbonate (MgCO3) with hydrochloric acid (HCl) to…

A: Ariana plans to react a sample of magnesium carbonate (MgCO3) with hydrochloric acid (HCl) to…

Q: • Two new elements with symbols Z and A combine. Ź forms Z¹+ and A forms A3- and the ions combine to…

A: Chemical formula of an ionic compound can be formed by criss-crossing the valencies of ions.

Q: The only reactant in this decomposition reaction is potassium chlorate, KClO3. The manganese(IV)…

A: in decomposition reaction one compound is breaking into two or more compounds.

Q: Each 100 ml of an antacid contains 3.7 g of aluminum hydroxide (Al (OH) 3), 11.66 g of magnesium…

A: To determine moles of any substance present  we use following formula    moles = massmolar mass

Q: FeSO4   +   Potassium phosphate  à  Iron (II) phosphate  +  K2SO4 Identify the spectator ions

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Q: A sample of NaCr(SO₂)₂.10H₂O was heated in a crucible, yielding 1.27 g of the corresponding…

A: The molar mass of NaCr(SO4)2 is = 267 g/mol The molar mass of H2O is = 18.0 g The mass of NaCr(SO4)2…

Q: What is the weight of lead nitrate Pb(NO3)2 (molecular weight = 331 g/mol) that %3D must be…

A:

Q: NaI (aq) + Cl2 (g) → I2 (s) + NaCl (aq) Given this equation calculate how much NaI is required to…

A: Consider the given information is as follows; Mass of I2 produced = 3.44 kg = 3440 g Mass of NaI…

Q: Hydrates take the form: compound·nH2O. An unknown hydrate has a molar mass of 446 g/mol.  If the…

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Q: The iodide ion is a dietary mineral essential to good nutrition. In countries where potassium iodide…

A: Given data contains, Mass of iodine is 150μg/day. Mass percent composition of Iodine is 76.45%.

Q: Write the formula of the compound that forms when aqueous solutions of strontium nitrate and…

A: When strontium nitrate and sulfuric acid are mixed then it results in a chemical reaction which…

Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

A: Ionic compound:Ionic compound composed of cation which is positively charged (+charge) and an anion…

Q: (3b-101) Balance the following equations (be sure to first convert any chemical names into…

A: In a balanced reaction, the number of atoms of each kind of element is same on both sides.  Now, in…

Q: One dose of an antacid contains 860. mg each of Mg(OH)2 and Al(OH)3. How many moles of each…

A: Given:- One dose of an antacid contains 860. mg each of Mg(OH)2 and.     Al(OH)3. To find:- How many…

Q: Calculate the mass of 8.4 x 1 0 24 molecules of carbon dioxide (dry ice) (Hint: first calculate the…

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Q: Pb（NO2）2 + Mg（NO3）2 please write the balanced equation and its net ionic equation

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Q: Mn. S,O. n H20 is the general formula of a certain hydrate. When 234.9 g of the compound of the…

A:

Q: Name each ionic compound: (a) NaHCO 3, the active ingredient in baking soda; (b) Al 2(SO 4) 3, an…

A: While naming an ionic compound, first name the cation followed by anion.

Q: In the wintertime, it is common to sprinkle a salt, such as NaCl or MgCl2, on icy roads and…

A: In the wintertime, it is common to sprinkle a salt, such as NaCl or MgCl2, on icy roads and…

Q: 5) King Krator the Merciless has called on Pogo, a humble goldsmith, to make a crown for the King.…

A: The mass of gold given by King Krator to gold Smith Pogo is ---- 14 oz. The density of gold=19.3…

Q: Volume of liquid bleach titrated = 5 ml %3D Molarity of Na2S2O3= 0.1 M Volume of Na,S,O3 added = 16…

A: By using Molecular formula of bleach and calculating no. Of moles of Na2S2O3 , we can find no. Of…

Q: Fill in the name and empirical formula of each ionic compound that could be formed from the ions in…

A: Answer:-This question is answered by using the simple concept of writing the chemical formula and…

Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

A:

Q: Write a balanced equation for the reaction of glucose (C 6H 12O 6) with oxygen (O 2) to form carbon…

A: The balanced chemical equation is the equation formed when the elements on the reactant side of the…

Q: Complete the columns in the table: formula: (NH4)2SO4 H3PO4(aq) S2Cl2 HgCO3 NH3 K2HPO4 name:…

A: We have to complete the following table. In this we need  to know the characteristic bonding nature…

Q: Write a balanced equation for the reaction of nitric acid, HNO3(aq), with magnesium hydroxide,…

A:

Q: Given the biaryl product, select the two reactants that would give this product via a Suzuki…

A: Given the biaryl product, select the two reactants that would give this product via a Suzuki…

Q: Complete and balance the chemical equation. chemical equation: K+ H,0 → Name the ionic product of…

A: In the  reaction between potassium and water we get the product's as potassium hydroxide and the…

Q: student is given a mixture containing two nitrate compounds. The mixture includesNaNO3 and Ca(NO3)2.…

A:

Q: 1) A sample of blue crystals of copper (1I) sulfate pentahydrate was heated to produce the…

A: Copper(II) sulfate consists of five water molecules (pentahydrate) which on heating loses one water…

Q: Platinum is an expensive and rare metal used in catalytic converters. Much research has been devoted…

A: Nanoparticles are very small particles which range between 1 to 100 nm. As they are very small in…

Q: Identify the spectator ions. Sr(OH)2+K2S=2KOH+SrS

A: The reaction given is, => Sr(OH)2 + K2S --------> 2 KOH + SrS

Q: Morphine sulfate used for severe pain relief is an opiate alkaloid isolated from the plant Papaver…

A: While writing the chemical formula, the number that represents the number of atoms is written as…

Q: When 25 g of lead (II) nitrate, Pb(NO3)2, is mixed with 15 g of sodium iodide in water, a reaction…

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Q: A hydrate of iron (II) sulphate, FESO, xH,0 is 20.0% iron by mass. A) What is the chemical formula…

A: The compound given is FeSO4·xH2O. And mass percent of iron i.e. Fe in compound = 20.0 %. Assuming…

Q: 3cucl,(aq) + 2Fe(s) 2Fecl,(aq) + 3cu(s) If you had a solution of copper(II) chloride that contained…

A: Number of moles of any substance can be calculated by dividing the mass of the substance by its…

Q: Three monoprotic acids are shown in the table below.  Complete the table with the appropriate…

A: In this question, we have to find out the correct answer of given problem by the help of  Molecular…

Q: You wish to prepare 204 grams of 14.9% (w/w) NaNO3. Assume that the density of water is 1.00 g/mL.…

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.