Ascorbic acid ( vitamin C)  molar mass 176g/mol   A healthy adult's daily requirement is 70-90 mg a lime contains 2.88x10*-4 mol of ascorbic acid ( vitamin C) to determine if the lime meets the daily needs one needs to calculate the mass of the lime

Q: In terms of mass, calculate the percentage of the active ingredient for each of the following…

A: Mass percentage is defined as the total mass of the substance( here active ingredients) divided by…

Q: Fluoride ion is poisonous in relatively low amounts: 0.2 g of F- per 70 kg of body weight can cause…

A: The strength of the given solution of fluoride ion is 1 mg/L. In order to cause toxicity and death,…

Q: Fluoride ion is poisonous in relatively low amounts: 0.2 g of F-per 70 kg of body weight can cause…

A: Given data contains, Concentration is 1 mg/L. Toxic amount is 0.2 g

Q: Yeast converts glucose to ethanol and carbon dioxide during anaerobic fermentation as depicted in…

A: The fermentation of glucose involves the reaction

Q: Mass of 1L Substance 810 g 1100 g 1250 g 1040 g Alcohol Ethylene glycol (antifreeze) Glycerin…

A:

Q: An ice freezer behind a restaurant has a freon leak, releasing 44.19 g of C, H,F,Cl into the air…

A:

Q: A low-strength aspirin tablet (sometimes called a baby aspirin) contains 81 mg81 mg of the active…

A: Each aspirin tablet contains 81 mg of an active ingredient. 100 tablets contain=100×81 mg=8100 mg

Q: A student needs exactly 25.0 mL of a 1.5M solution of NaOH (molar mass: 40.00 g/mol). They have…

A: Given: Concentration of NaOH = 1.5 M Volume of solution required = 25.0 mL = 0.025 L…

Q: 2. The Anemovax COVID-19 vaccine uses 0.950% (w/v) NaCl (normal saline, preservative- free) as its…

A:

Q: You wish to prepare 205 grams of 14.3 % MgSsO4- You will need grams of magnesium sulfate and mL of…

A: Given that, % of MgSO4 = 14.3%  ,  Total mass = 205 gms Also, % of MgSO4 = Mass of MgSO4Total…

Q: In a laboratory experiment, an undergraduate student collected a sample of ammonium phosphate. If…

A:

Q: The average dollar bill is 1.8x107 nm long and weighs 0.987 g.  The distance to the sun is 1.5x108…

A: Mole : Mole is the unit by which we measure the amount of substance. One mole is equal to the number…

Q: An ice freezer behind a restaurant has a freon leak, releasing 30.77 g of C,H,F,Cl into the air…

A:

Q: You will need grams of sodium chloride and mL of water.

A: Given :- mass of solution = 184 g                % w/w = 3.17 %  To be calculated :- mass of NaCl (…

Q: In a given alloy of Nb-Vd: * in the given 24 wt % Nb - 76 wt % Vd alloy with the density of the pure…

A: Given: Mass of Nb in 100 g alloy = 24 g Mass of Vd in 100 g alloy = 76 g Density of pure Nb = 8.57…

Q: the mole is a common unit of measurement in chemistry you mat not be faniliar with mikes but one of…

A: Given : Mass of water i.e H2O = 290 g And mass of 1 mole of water = 18 g

Q: 2 g aluminum sulfate in 200 g of water . density of aluminum sulfate ; density of h20

A: Density can be determined by using the following formula: Density = mass/volume

Q: On average, people use one teaspoon (2.5 g) of instant tea to make a 8-oz glass of ice tea. The…

A: 1 oz of iced tea contains 10 mg of caffeine.Therefore, 8 oz of iced tea contains 80 mg (0.08 g) of…

Q: Part A The American Dental Association recommends that an adult female should consume 3.0 mg of…

A:

Q: An antacid tablet weights 1.36g. If the percent active ingredient of calcium carbonate is 38.2%,…

A:

Q: A patient is treated with hydroxychloroquine for malaria. The drug is given based on the body mass…

A: Given, A patient is treated with hydroxychloroquine for malaria. The drug is given based on the body…

Q: You wish to prepare 210 grams of 16.3 % Mg(NO3)2 You will need grams of magnesium nitrate and mL of…

A: Given that we have to prepare a 210 grams of 16.3 % MgNO32 solution. Recall the expression of mass…

Q: <) is 1.106 amu. Estimate the total bindi

A:

Q: You wish to prepare 222 grams of 21.0 % Fe(NO3)2. You will need grams of iron(II) nitrate and mL of…

A:

Q: It is estimated that an adult person contains 6.3 × 103 ppm phosphorus. What mass of phosphorus in…

A: By definition, ppm refers to parts per million.  Therefore, ppm of phosphorus in adult person would…

Q: What is the mass of 1.86x10^24 molecules of nitrogen

A: first find the no. of moles of N2  then find mass by multiply by its molar mass

Q: High-density lipoprotein (HDL) cholesterol is the “good” cholesterol because adequate levels reduce…

A:

Q: 2. A particular brand of beef jerky contains 0.0552 % sodium nitrite (NaNO2) by mass and is sold in…

A: Given: % NaNO2=0.0552 % 1 bag contains 8 oz sample Mass of sample= 8 x 28.35 g =226.8 g

Q: You wish to prepare 202 grams of 11.8 % Ba(OH)2. You will need _____ grams of barium hydroxide and…

A: Given:  Weight of solution = 202 gm  % by mass = 11.8 %  Density of water = 1.00 g/ml

Q: 1. The average person uses ~ 1.00 gram of sodium chloride per day. How many calendar days would it…

A: The number of constituent particles or atoms present in one mole of a substance is equal to 6.023 ×…

Q: A 5.70 g mixture contains both lithium fluoride, LiF, and potassium fluoride, KF. If the mixture…

A: First, let's analyze the given data in the question, Mass of mixture = 5.70 g Mass of fluorine in…

Q: Fluoride ion is poisonous in relatively low amounts: 0.2 g of F⁻ per 70 kg of body weight can cause…

A: Water fluoridation is the controlled adjustment of fluoride to a public water supply to reduce tooth…

Q: A standard aspirin tablet contains 325 mg of aspirin, which has the molecular formula C9H8O4. How…

A: The number of moles of a substance is the ratio of its given mass by molar mass of the substance. It…

Q: Yeast converts glucose to ethanol and carbon dioxide during anaerobic fermentation as depicted in…

A: The fermentation reaction is glucose → ethanol + carbon dioxide  Amount of glucose fermented is 200g…

Q: An analytical chemist measures the amount of Elements E, and E, in four samples of an unknown…

A: Since the unknown substance, X contains elements E1 and E2, it can be either a compound of E1 and…

Q: Vitamin B12, cyanocobalamin, is essential for human nutrition. Its molecular formula is…

A: The ratio of mass of the substance to the number of moles of the substances is known as molar mass.…

Q: A drink recipe calls for 600 grams of sugar, 6 liters of water, and 3 package of flavoring. While…

A: Limiting Reagent concept is used wherever one ingredient is limited.

Q: What is the mass of fresh water (ρ= 1.00 g/cm3) in a 78.0 Ltank?

A: Given : density of water = 1.00 g/cm3  Volume of tank = 78.0 L

Q: The hydrated form of nickel(II) chloride is a green compound commonly found in the chemistry…

A: One mole of a substance is that amount of it which contains as many entities as there are atoms in…

Q: A 50 g serving of Marshmallow Peeps has 40 g of sugar. What is the % m/m of sugar in Peeps?

A: To determine the weight per cent of a solution, divide the mass of solute by mass of the solution…

Q: 1. Write an equation showing how the mass of the substance sought can be converted to the mass of…

A:

Q: You wish to prepare 237 grams of 26.7% (w/w) KI. Assume that the density of water is 1.00 g/mL. You…

A: Given: mass of KI = 237g density of water = 1g/ml Weight of water =  density x mass concentration =…

Q: Question 3

A: Copper is an element having symbol Cu and aluminum is an element having symbol Al.

Q: Nitrogen makes up what fraction of the mass of the hum Body? Nitrogen makes up what percentage of…

A: 1.Fraction of Nitrogen in mass of human body  70 kg  of Nitrogen is 1 fraction   2.2 Kg   of…

Q: A solution is made using 250.0 mL of ethanol (density 0.7892 g/mL) and 369.1 mL of water (density…

A:

Q: You wish to prepare 217 grams of 19.0 % Cr(CH3COO). You will need grams of chromium(II) acetate and…

A: Given, 217 gram of 19% Cr(CH3COO)2 solution.we are asked to calculate the mass of Cr(CH3COO)2 and…

Q: An ice freezer behind a restaurant has a freon leak, releasing 40.82 g of C,H,F,Cl into the air…

A: Given: Total mass of C2H2F3Cl released per week = 40.82 g. And total months passed = 6 months. Since…

Q: 18/8 stainless steel is made up of 18% (m/m) chromium and 8% (m/m) nickel in iron. What mass of…

A: The mass of chromium can be calculated as follows

Q: What is the mass of 1 atom of krypton? a-3x10-22 g b-9x10-22 g c-2x10-26 g d-5x1025 g e-1x10-22 g

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".