Supplement tablets containing 50 mg of Mg-" each are sold to bolster bone health and muscle function. A water sample was analyzed and found to have a hardness value that was reported as 170 ppm CaCO3. Measurements also indicated it had an actual Ca²* concentration of 0.0002 M. Assuming Mg²+ is the balance of the hardness value, would drinking a cup of this water (i.e. 250 mL) provide the same Mg²+ load as one tablet above?

Supplement tablets containing 50 mg of Mg-" each are sold to bolster bone health and muscle function. A water sample was analyzed and found to have a hardness value that was reported as 170 ppm CaCO3. Measurements also indicated it had an actual Ca²* concentration of 0.0002 M. Assuming Mg²+ is the balance of the hardness value, would drinking a cup of this water (i.e. 250 mL) provide the same Mg²+ load as one tablet above?

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter1: Basic Concepts Of Chemistry

Section: Chapter Questions

Problem 49RGQ: Fluoridation of city water supplies has been practiced in the United States for several decades. It...

See similar textbooks

Similar questions

You need 300. mL of 0.500-M K2Cr2O7. Which method is best to prepare this solution? Explain your choice. (a) Dilute 250. mL of 0.600-M K2Cr2O7 to 300. mL. (b) Add 50.0 mL water to 250. mL of 0.250-M K2Cr2O7. (c) Dilute 125 mL of 1.00-M K2Cr2O7 to 300. mL. (d) Add 30.0 mL of 1.50-M K2Cr2O7 to 270. mL of water.
Distinguish between the terms slightly soluble and weak. electrolyte.
A solution is made by dissolving 0.455 g of PbBr2 in 100 g of H2O at 50C. Based on the data in Table 8-1, should this solution be characterized as a. saturated or unsaturated b. dilute or concentrated
Twenty sodium salicylate tablets labeled 325 mg were dispersed in sufficient water to make 200.0 mL. A 15.0–mL aliquot of the filtrate was titrated to a bromophenol blue endpoint in the usual way by 32.11 mL of 0.1000 N hydrochloric acid. Calculate the amount of sodium salicylate in each tablet, and from that, the percentage of the labeled amount. (NaC7H5O3 MW = 160.11 g/mol) Amount of sodium salicylate in each tablet = % labelled amount =
The hardness of water (hardness count) is usually expressed in parts per million (by mass) of CaCO3. What is the molar concentration of Ca2+ ions in a water sample with a hardness count of 175mg CaCO3il? How many milliliters of concentrated sulfuric acid, 94.0% (w/w), specific gravity of 1.831 are required to prepare 1 liter of a 0.100 M solution? The solubility-product constant for Ce(IO3)3 is 3.2x1010. What is the Ce3+ concentration in a solution prepared by mixing 50.0 ml of 0.0250 M Ce3.. with 50.00 ml of water?
1. A sample of pure sodium oxalate, Na2C2O4 , weighing 0.2856 g is dissolved in water, sulfuric acid is added, and the solution titrated at 70°C , requiring 45.12 mL of a KMNO4 solution. The end point is overrun and back-titration is carried out with 1.74 mL of a 0.1032 N solution of oxalic acid. Calculate the normality of the KMNO4 solution. Hint: A redox reaction is involed between oxalate and permanganate. Look at the changes in oxidation state by determining the balanced redox reaction: 5C20,2 + + 2MN2+ 2 Mn04 + 10H* → 10CO2 + 8H20
Caculate the volume (mL) of 1.0 M potassium carbonate (K₂CO₃) needed to prepare 5.0g of the COPPER pigment. This is where the balanced chemical equation come in. You should be able to relate the moles of pigment to the moles of K₂CO₃, and from that calculate the volume of 1.0 M K₂CO₃ solution needed. Please report your value as XX.X mL (one deicmal point and no units).
A student creates a calibration plot for serial dilutions of Cu(NO3)2. A graph of concentration in M (x-axis) versus absorbance (y-axis) gives a linear trendline of y = 0.345x - 0.11. c.) How many grams of Cu(NO3)2 are present in 100 grams of solution? How many grams of water?
A sample of 6 M 10 mL H2SO4 is diluted to 100 ml. Calculate the concentration ( in gravimetric analysis )
A sample of sodium carbonate; NazCO3 (MW=105.9 g/mole) weighing 0.3125 g was dissolved in 40.0ml distilled water and titrated with HCl solution and required 23.6 ml to reach the endpoint. Calculate the molarity of the HCI solution. 6.96 M 6.96 x10 -5 M. 0.125 M 0.25 M
d. 1.10 g of K3PO4 in 430.0 mL of solution Mx+ =| M %3D Mpo, M
The maximum acceptable concentration of Pb (atomic mass = 207.2) in drinking water is 0.010 ppm. If a water sample has a concentration of 55 nM, does it exceed the maximum acceptable concentration?