Question number 2 please TVO ILCto significant figures.b) What is the mass of 3.64 x 100 atoms of magnesium?6,02 x 10 3sodium used in cooking and at the table.The sodium content of a popular type of fast-food hamburger is 730 mg.a) How many moles of sodium ions are present in one of these hamburgers?b) How many of these hamburgers can you eat in a day to fulfil all of your sodiumdietary requirements?3. Nitrogen, when combined with oxygen, can form various oxides. 3.5 g of nitrogen gas isburned in oxygen to form 11.5 g of an oxide of nitrogen.a) Determine the mass of oxygen burned. (Hint: The oxide contains ONLY nitrogen andDxygen!)significance to the of compounds.Overall expectation 3: I can an of the and itsa) has the mass, 3.8 mol of or 5.6 mol of sulphur?1. the to of the Pay attention2. The is to less than of sodium per day.This is one of It all includingogen by mass in the oxide.

Given, Daily requirement of sodium intake should be less than 0.10 mg. Sodium content of hamburger =…

Answered: b) Whal IS To 6,02 x 100 3 sodium used…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter3: Stoichiometry

Section: Chapter Questions

Problem 117E: Bacterial digestion is an economical method of sewage treatment. The reaction is an intermediate...

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Atomic masses are relative masses. What does this mean?
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What is the mass of fish, in kilograms, that one would have to consume to obtain a fatal dose of mercury, if the fish contains 30 parts per million of mercury by weight? (Assume that all the mercury from the fish ends up as mercury (II) chloride in the body and that a fatal dose is 0.20 g of HgCl2.) How many pounds of fish is this?
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Chalky, white crystals in mineral collections are often labeled borax, which has the molecular formula Na2B4O7 10H2O, when actually they are partially dehydrated samples with the molecular formula Na2B4O7 5H2O, which is more stable under the storage conditions. Real crystals of borax are colorless and transparent. (a) Calculate the percent mass that the mineral has lost when it partially dehydrates. (b) Is the percent boron by mass the same in both compounds?
The space shuttle environmental control system handles excess CO2 (which the astronauts breathe out; it is 4.0% by mass of exhaled air) by reacting it with lithium hydroxide, LiOH, pellets to form lithium carbonate, Li2CO3, and water. If there are seven astronauts on board the shuttle, and each exhales 20. L of air pee minute, how long could clean air be generated if there were 25,000 g of LiOH pellets available for each shuttle mission? Assume the density of air is 0.0010 g/mL.
You have a pure sample of apholate, C12H24N9P3, a highly effective commercial insecticide. Calculate the molar mass of apholate. Calculate the mass of N in 100. g apholate. A sample containing 250.0 mg apholate is sprayed on an agricultural field. Calculate the mass of phosphorus in this sample of apholate; express your result in grams. Calculate the number of phosphorus atoms in this sample of apholate.
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Bacterial digestion is an economical method of sewage treatment. The reaction is an intermediate step in the conversion of the nitrogen in organic compounds into nitrate ions. What mass of bacterial tissue is produced in a treatment plant for every 1.0 104 kg of wastewater containing 3.0% NH4+ ions by mass? Assume that 95% of the ammonium ions are consumed by the bacteria.

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