A 30.5 gram sample of glucose (C6H12O6) contains ________ mol of glucose.

Q: What mass (in grams) of vitamin C (C6H8O6) that contains 1.076 grams of carbons? Use mass percent

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Q: 36.0 g of glucose (C,H1206). If the molar mass of glucose is 180 g/mol, Use Mathematics A solution…

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Q: person

A: Molar mass of water = 2 • ( molar atomic mass of H ) + molar atomic mass of O  Molar mass of water =…

Q: Ninety-one grams of glycerin (sp gr = 1.25) is needed to prepare 50 glycerin suppositories. How much…

A:

Q: 3. 75 ml CCl, (liquid) Calculate n (mol CCI4)

A: Given data : Volume of CCl4 = 75 mL Also density of CCl4 = 1.59 g/mL So, mass of CCl4 = Volume x…

Q: How many atoms are in 133g of calcium? 133g=

A: Given  Mass of calcium = 133 gram  Molar mass of Calcium = 40 gram/mole Number of atom = ?

Q: Determine the number of moles in 1.19 × 10²³ formula units of MgCl₂.

A: It is known that one mole of a substance is equal to 6.022×1023 formula units of that substance…

Q: A sample of a 20.0 % solution of KCI in water has a mass of 400. g. What mass of KCI is contained in…

A: A solution is made up of two components solute and solvent. A solute is present to a lesser extent…

Q: Ascorbic acid ( vitamin C)  molar mass 176g/mol   A healthy adult's daily requirement is 70-90 mg a…

A: The daily requirement of vitamin C for a healthy adult's  is = 70-90 mg The molar mass of vitamin C…

Q: 8. Answer the question below. Use the rubric in the materials for help if needed. You have a 155 g…

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Q: astronauts on the International Space Station are staying​ healthy, so they have them routinely test…

A:

Q: What is the mass of 5 ul distilled water?

A: Since you have posted multiple questions, as per our company guidelines we are supposed to answer…

Q: oluene (MW 92.141, d 0.87) is a chemical solvent. How many moles of toluene are present in 87.9 mL…

A: Given   volume of Toluene = 87.9 mL               density   = 0.87 gram/ mL   Number of mole of…

Q: Find the number of moles in 3.7 x 10 ^-5 g of magnesium phosphate.

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Q: How many equivalents of Mg*2 are there in 6.00 mol of Mg3(PO4)2? First we have to convert moles into…

A: Initially we have to determine the number of equivalent of Mg2+ in the corresponding phosphate of 1…

Q: Wine is approximately 12% ethanol (CH3CH2OH) by volume. Ethanol has a molar mass of 46.06 g/moland a…

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Q: If an average cup of coffee contains approximately 150 mg of caffeine, how many moles of caffeine…

A: Given;

Q: A particular recipe calls for 342 grams of sucrose (C12H22011). How many moles of sucrose are in…

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Q: (c) How much volume of 1.3 M NaOH solution can be made by diluting 48 ml of 4 M NaOH.   (d)…

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Q: Ascorbic acid (C,H306) is also known as Vitamin C. How many molecules of C,H,0, does a Vitamin C…

A: Given,

Q: the unknown mixture is heated and the NaHCO3 decomposes, what happens to the NaCl and how does that…

A: The answer is as follows:

Q: A chemist prepares a solution of calcium sulfate (CaSo,) by measuring out 0.0770 µmol of calcium…

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Q: 325.2 g sample contains 42.3% NaCl. How many grams of NaCl are in the sample?

A: Mass of the solution is = 325.2 g The concentration of the solution is = 42.3 % NaCl Mass of NaCl in…

Q: 5. Calculate the number of molecules in 5.00 mol of NH3. A. 3.01 x 1024 molecules of NH3 B. 1.03 x…

A: Given,  Moles of NH3 = 5.00 mol.  The number of molecules of NH3 in 5.00 mole of NH3 is:

Q: Borax, a common laundry product, is sodium borate decahydrate.  The chemical formula is Na2B4O7 ⋅⋅…

A: Using the molar mass of borax and molar mass of water we can find percentage of water.

Q: Calculate the number of moles in 143.0 grams of methane (CH4) gas.

A: In order to calculate number of moles of any compound or a gas we need mass  and molar mass of that…

Q: Wastewater contains 10 mg/L NH3. Its N concentration = _____ mg N/L. (Hint: atomic weight: N, 14…

A: Wastewater contains 10 mg/L NH3 . If we want to calculate the concentration of N then we need to…

Q: a 5.000g sample that contained NaCl and BaCl2 *2H2O was heated. After heating the sample had a…

A: Given : Mass of sample of NaCl and BaCl2*2H2O = 5.000 g And mass of sample after heating = 4.688 g

Q: Find the percent mass if 8.6g of NaOH is added to 69.44g of water.

A: Given :-  mass of NaOH = 8.6 g  mass of water = 69.44 g  To calculate :-  percent mass (%w/w)

Q: How many grams of sulfate is present in the sample? Write the chemical reactions that can happe

A: The total number of moles of EDTA in the solution of 25.00 mL of 0.02000 M EDTA is;…

Q: Part C How many moles are in 20.0 g of MgCl2 ? Express your answer to three significant figures.…

A: Mole concept:  A mole  is the quantity of a substance that contains atoms, molecules, ions,…

Q: Wine is approximately 12% ethanol (CH3CH2OH) by volume. Ethanol has a molar mass of 46.06 g/mol and…

A:

Q: Part C: 5. Find the amount (moles) of the substance in the following samples to two decimal places:…

A:

Q: If 0.0458 mol CaCl20.0458 mol CaCl2 is dissolved in water to make a 0.490 M0.490 M solution, what is…

A:

Q: 1. How many grams of water (H20) are there in 2 mol of water? 1 mol H20 = g (round to hundredth)

A: atomic mass of H = 1 g/mol atomic mass of O = 16 g /mol 1 mol H2O =  2 x1 + 16 = 18  g H2O

Q: Calculate the number of moles in a 7.89 kg sample of aspirin

A: No. Of moles = Given mass/molar mass

Q: Determine the number of moles in 4.74 × 10²³ formula units of MgCl₂.

A: Given, 4.74 × 10²³ formula units of MgCl₂

Q: A glucose solution is frequently used as an intravenous (IV) solution to supply hydration and/or…

A: a.  Molarity = no of mole/volume of solution in litre  Given, Molarity=0.278M Volume=2.05L Mole of…

Q: Determine the mass of 500g of ammonia   % solute by mass 28 density 0.90 g/mL

A: % solute by mass= 28 % This means 28 g of ammonia in 100 g of solution. Density =0.90 g/m

Q: Convert the following to grams   2 moles HCN         0.5 moles C2H6

A: Moles can be converted to mass by using the formula given below as; Moles = MassMolecular…

Q: The number of molecules in 0.556g of PF6 is

A: We have given that Mass of PF6 = 0.556g Molar mass of PF6 = 144.9642 g/mole No. of mole of PF6 =…

Q: RIAL [HCI] Volume Moles Moles Volume [NAOH] HCI HCI NaOH NAOH 1 O.1048 24.65 25.75 0.1002 25.89…

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Q: How many moles are present in 4.01g of lithium?  Report your answer to 3 decimal places

A: Concept- moles = weight/ atomic mass

Q: What is the percent by mass NaCl of a solution that contains 56.0 grams of BeO and 138.0 grams of…

A: Given: The mass of the solute, i.e;  BeO=56 g. The mass of  the solvent, i.e; H2O=138 g. Therefore…

Q: O CHEMICAL REACTIONS Calculating molarity using solute moles A chemist prepares a solution of…

A: Given, Note: 1 µmol = 10-6 mol Moles of FeBr3 = 85 µmol = 85 × 10-6 mol Note: 1 mL = 10-3 L Volume…

Q: Q1. The concentration of the sugar glucose (C6H12O6, M.wt. 180) in human blood ranges from about 80…

A: Given that Concentration of sugar before eating = 80 mg/dL Concentration of sugar after eating =…

Q: A chemist prepares a solution of vanadium(III) chloride (VC13) by measuring out 1.50 g of VCl2 into…

A:

Q: Which

A: According to this law, when temperature and pressure are constant then volume of gas depends up on…

Q: The recipe for crazy cakes is as follows: 1 1/2 cups flour (all-purpose) 3 Tbsp. cocoa (unsweetened)…

A: The moles of acetic acid are calculated as,

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.