According to nutritional guidelines from the US Department of Agriculture, the estimated average requirement for dietary potassium is 4.7 g. What is the estimated average requirement of potassium in moles?

Q: Calculate the number of grams of sodium in 8.2 g of each of the following sodium-containing food…

A: Given compounds are : a). NaCl (table salt) b). Na3PO4(sodium phosphate) c). NaC7H5O2 (sodium…

Q: The most common source of copper (Cu) is the mineral chalcopyrite (CuFeS2). How many kilograms of…

A: 1 molecules of chalcopyrite contains 1 atom of copper. Mole of Cu to be obtained may be calculated…

Q: Aspirin can be prepared from salicylic acid (C7H6O3), which has a molar mass of 138.12 g/mol, and…

A: Given reaction: C7H6O3+C4H6O3⟶C9H8O4+C2H4O2 We have to find the theoretical yield of aspirin…

Q: How many items are contained in one mole of (a) baseballs; (b) bicycles; (c) Cheerios; (d) CH 4…

A: Hi, since you have posted questions with multiple subparts we will answer the first three subparts…

Q: In 1970 standard established by the U.S. Government for carbon monoxide emission for automobiles…

A:

Q: A sunscreen preparation contains 2.50% by mass benzyl salicylate (2.50g benzyl salicylate/100g…

A: Given : weight of benzyl salicylate = 2.50 g in 100 g sunscreen  And one tube contains 4 ounces of…

Q: A sample of nickel silver contains 18.0% nickel by mass. What mass of nickel silver must be melted…

A: Given: Sample of Nickel Silver contains: 18% Nickel by mass.

Q: Guaifenesin (C1oH1404) is a common over-the-counter expectorant. What mass (in g) of oxygen is…

A: The objective of this question is to find out the mass of oxygen in a 200 mg dose of Guaifenesin. To…

Q: Phosphorus pentachloride, PCIs, a white solid that has a pungent, unpleasant odor, is used as a…

A: mole is equal to weight of substance divide by it's molar mass

Q: A local water retention pond was found to have elevated mass concentration of mercury of 14 ng per…

A: Given data: Concentration of mercury = 14 ng/L Volume of water in swimming pool = 1250 m3   Known…

Q: experiment was done to determine the composition of a mixture of sodium chloride and sodium…

A:

Q: Cellulose, the major component of plant cell walls has an empirical formula of C6H10O5.  One of the…

A: Mass of tree = 3.3×106 kg Cellulose percentage = 45% Mass of cellulose in tree =[ 3.3×106 ×45/100…

Q: Consider Palmitic acid C16H32O2, a common fatty acid used in the manufacture of soap. A solution of…

A: The formula used to find out the volume and strength or concentration in the case of volumetric…

Q: Consider Palmitic acid C16H32O2, a common fatty acid used in the manufacture of soap. A solution of…

A: The question is based on the concept of solutions. Mass percentage is a method of expressing…

Q: Write the balanced chemical equation for the reaction of aqueous sodium carbonate with aqueous…

A: A balanced chemical equation is the one that consists of equal number of every atom of an element at…

Q: Aspirin can be prepared from salicylic acid (C7H6O3), which has a molar mass of 138.12 g/mol, and…

A:

Q: How many grams is equivalent to 1.204 x 1024 molecules of NH3? How many moles are there in 584 g of…

A: 1 mol = Avogadro's number molecules            = 6.022 * 10 23 molecules  Moles = weight / molar…

Q: To help farmers and gardeners, commercial fertilizers have a big three-number "NPK" label on the bag…

A: Consider that the total mass of the mixture is 100g. Percent by mass of urea (fertilizer) is 40%.…

Q: Explain the idea of “synergistic effects.”

A: Given :  To explain synergistic effects

Q: The mass of Fe2O3 isolated from analysis of 14 tablets was 0.282 g. What is the average mass of iron…

A: Molar Mass of Fe2O3 = 159.69 g/mil Hence, 159.69 g of Fe2O3 contains 55.845 g of Fe.

Q: A certain protein was found to contain 0.531% iron by mass. Determine the minimum molecular mass of…

A:

Q: How many grams of oxygen are present in 2,556 g of aspirin, C9H8O4

A: The objective of this question is to find out the amount of oxygen in grams present in a given…

Q: The Hall process for the production of aluminum involves the reaction of aluminum oxide with…

A: Given : Mass of Al = 1.0 * 103 Kg = 1.0 * 106 g  Percentage of Al ore in Aluminium oxide = 71%…

Q: You placed a sample of a hydrate of calcium chloride (CaCl₂) in a weighed test tube, and weighed the…

A: When the hydrate of a salt is heated, water will be released from the hydrate. Now, if we subtract…

Q: The molar mass of ibuprofen is 206.3 g mol-1 and a standard tablet contains 0.2 g ibuprofen.  What…

A: Given that : The molar mass of ibuprofen = 206.3 g/mol The mass of ibuprofen in a tablet = 0.2 g

Q: 5 g of hydrated barium chloride is heated in a crucible until the mass of the sample no longer…

A:

Q: Complete combustion of 4.70 g4.70 g of a hydrocarbon produced 15.1 g15.1 g of CO2CO2 and 5.15 g5.15…

A: Mass of hydrocarbon (CnHn) = 4.70 gMass of CO2 = 15.1 gMass of H2O = 5.15 g Hydrocarbons contain…

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.