Please help with question 2 a-cTopic 7 1. Give the name and calculate the molar mass for each of the following substances.a. HNO₂b. MgSO4.7H₂OC. CoCl₂2. Calculate the mass in grams of each of the following samples.a. 25.5 x 1024 nitrogen moleculesb. 9.301 moles of Sulfuric Acidc. 3.20 x10¹ moles of Ferric Bicarbonate3. Calculate the percent by mass of the second element in the properly written formula. Example,for Ferric Hydroxide, the % would be based on the Oxygen from the formula Fe(OH)3 (do not relyon google for your nomenclature since that kept giving FeHO₂, an incorrect formula for thename given.)a. Calcium Acetateb. Ammonium Sulfatec. Iron (II) Nitrate4. 72 molecules of a compound has a mass of 1.82x10-20g. The molar mass of this compound is?(hint, molar mass is defined as grams/mole)5. What mass of solute is necessary to prepare a 500mL flask of 0.100M NaOH solution?|||<

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2. Calculate the mass in grams of each of the following samples. a. 25.5 x 1024 nitrogen molecules b. 9.301 moles of Sulfuric Acid c. 3.20 x10¹¹ moles of Ferric Bicarbonate

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter5: Stoichiometry

Section: Chapter Questions

Problem 135AE

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Concept explainers

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.

Question

Please help with question 2 a-c Topic 7

1. Give the name and calculate the molar mass for each of the following substances.
a. HNO₂
b. MgSO4.7H₂O
C. CoCl₂
2. Calculate the mass in grams of each of the following samples.
a. 25.5 x 1024 nitrogen molecules
b. 9.301 moles of Sulfuric Acid
c. 3.20 x10¹ moles of Ferric Bicarbonate
3. Calculate the percent by mass of the second element in the properly written formula. Example,
for Ferric Hydroxide, the % would be based on the Oxygen from the formula Fe(OH)3 (do not rely
on google for your nomenclature since that kept giving FeHO₂, an incorrect formula for the
name given.)
a. Calcium Acetate
b. Ammonium Sulfate
c. Iron (II) Nitrate
4. 72 molecules of a compound has a mass of 1.82x10-20g. The molar mass of this compound is?
(hint, molar mass is defined as grams/mole)
5. What mass of solute is necessary to prepare a 500mL flask of 0.100M NaOH solution?
|||
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