A certain metal hydroxide, , contains 32.8 oxygen by mass. What is the identity of the...
A certain metal hydroxide, , contains 32.8 oxygen by mass. What is the identity of the metal ?
Let X be the molar mass of M(OH)2 32/X = 0.328 X = 97.6 g/mol Molar mass of metal M = 97.6 - 32 - 2 = 63.56 g/mol According to the periodic table, copper has the molar mass of 64g/mol. So, M is copper.
Why do you divide by 32 in the numerator instead of 32.8? if it is 32.8g of O/ 100 g Substance
Homework Answers
Request Answer!
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
Add Answer to:
A certain metal hydroxide, , contains 32.8 oxygen by mass. What
is the identity of the...
A solution is made by dissolving 8.65 g sample of an unknown group 2A metal hydroxide,...
A solution is made by dissolving 8.65 g sample of an unknown group 2A metal hydroxide, M(OH)2 , in enough water to prepare 85.0 mL of solution. the unknown base reacts with hydrochloric acid according to the reaction show below. M(OH)2 (aq) +2HCl (aq) = MCl2 (aq) _ 2H2O (l) Titration of this solution required 56.9 mL of 2.50 M HCl (aq) solution to reach equivalence point. 1. What is the molar mass of the metal hydroxide? 2. What is...
If the molar mass of a substance is 44.01 g/mol, what is the mass of 1.05...
If the molar mass of a substance is 44.01 g/mol, what is the mass of 1.05 x 1024 molecules of the substance? HTML Edita T. x : A 6.25 g sample of magnetite (Fe3O4) contains 4.52 g of Fe. What are the percentages of iron and oxygen in magnetite? HTML Editor Calculate the number of moles of NaHCO3(sodium bicarbonate, or baking soda) in a 5.0 g sample of this substance. A chemical reaction requires 3.50 moles of copper(II) nitrate, Cu(NO3)2....
1. When 2.50 g of copper metal reacts with molecular oxygen, the copper oxide product of the reaction has a mass of...
1. When 2.50 g of copper metal reacts with molecular oxygen, the copper oxide product of the reaction has a mass of 2.81 g. What is the empirical formula of the copper oxide product 2. When 10.8 g of silver was reacted with sulfur. 12.4 grams of product was produced there was only one product). What is the empirical formula of the product? 3. Lysine is a compound composed of carbon, hydrogen, nitrogen and oxygen. When 1.50 g of lysine is burned,...
Qustion Campleon Status: QUESTION 7 What is the mass of a 4.110-mol sample of sodium hydroxide?...
Qustion Campleon Status: QUESTION 7 What is the mass of a 4.110-mol sample of sodium hydroxide? Oa. 98.6 g Ob0.1028 g Oc 164,4 g O d.9.732 g Oe. 40.00 g QUESTION 8 A sample of ammonia has a mass of 89.9 g. How many molecules are in this sample? Oa541 x 1025 molecules Ob.5.28 molecules Oc3.18x 1024 molecules Od 1.14 x 1023 molecules x 10-15, molecules QUESTION 9 A mole of a chemical substance represents Oa.6.02 x 1025 chemical particles...
The solubility product, Ksp, for cobalt(III) hydroxide, Co(OH)3, is 1.6X104 at 25°C. What is the molar...
The solubility product, Ksp, for cobalt(III) hydroxide, Co(OH)3, is 1.6X104 at 25°C. What is the molar solubility of cobalt(III) hydroxide in a solution containing 0.077 M KOH at 25°C? 125.82e-41 x M Did you remember that the molar solubility of a substance is reduced whenever a common ion is present? Supporting Materials Periodic Table Constants and Factors Supplemental Data Additional Materials Tutorial -/50 points FSUGenChem2L1 8.PRE.002. Complete the following table of data for Ce2(SO4)3 9 H20. (Assume the density of...
DATA Trial 1 Trial 2 Mass test tube (g) 42.67 41.41 Mass test tube + metal...
DATA Trial 1 Trial 2 Mass test tube (g) 42.67 41.41 Mass test tube + metal (g) 73.15 71.47 3.52 3.49 106.09 35.22 100 100 Mass strxofoam cups (g) Mass strxofoam cups + water (g) Initial temperature metal (°C) Initial temperature water (°C) Final temperature metal and water (°C) Specific heat water (J/g. °C) 20.9 19.6 21.9 22.8 4.184 4.184 CALCULATIONS Trial 1 Trial 2 mmetal (g) | mwater (g) | Atwater. (°C) Atmetal (°C) Qwater (J) Qmetal (J) Smetal...
5) How many moles of hydrogen gas are needed to react with oxygen to form one...
5) How many moles of hydrogen gas are needed to react with oxygen to form one mole of 5) water? 2H2(8) + O268) - 2H20(1) A) 4 mol B) 1 mol C) 2 mol D) 0.5 mol E) 6 mol 6) Incomplete combustion occurs when there is insufficient oxygen to react with a compound. The suffocating gas carbon monoxide is a product of incomplete combustion. How many moles of oxygen gas are required for the complete combustion of 11.0 moles...
Question 1 According to the following reaction, what mass of silver nitrate would be required to...
Question 1 According to the following reaction, what mass of silver nitrate would be required to react with 0.500 grams of potassium chloride? AgNO3 (aq) + KCl (aq) --> AgCl (s) + KNO3 (aq) options 2.68 g 0.500 g 85.0 g 170 g 1.14 g Question 2 Consider the reaction: Na2CO3 (aq)+ 2 HCl (aq) --> 2 NaCl (aq) + CO2 (g) + H2O (l) If 43.41 g of sodium carbonate react completely, how many grams of HCl will be...
1) One mole of copper(II) sulfate, CuSO4, contains O atoms. 2) What is the molar mass...
1) One mole of copper(II) sulfate, CuSO4, contains O atoms. 2) What is the molar mass of Mg3(PO4)2, a substance formerly used in medicine as an antacid? 3) How many moles of K2SO4 are in 15.0 g of K2SO4? 17) How many grams of glucose are needed to prepare 400 mL of a 2.0%(m/v) glucose solution? 18) How many moles of CaCl2 are in 250 mL of a 3.0 M of CaCl2 solution? 19) What volume of 0.10 M NaOH...
The solubility product, Ksp, for cobalt(III) hydroxide, Co(OH)3, is 1.6 x 10-44 at 25°C. What is...
The solubility product, Ksp, for cobalt(III) hydroxide, Co(OH)3, is 1.6 x 10-44 at 25°C. What is the molar solubility of cobalt(III) hydroxide in a solution containing 0.077 M KOH at 25°C? Supporting Materials Periodic Table Supplemental Data Constants and Factors Additional Materials Tutorial Complete the following table of data for Cez(SO4)3.9 H20. (Assume the density of water is 1.00 g/ml.) Кsp AG (kJ/mol) T(°C)| Solubility Concentration (g/100.9) (M ) 15.0 12.2 9.27 40 4.9 ) 27.0 40/ 39.0 6.89 40...
If the molar mass of a substance is 44.01 g/mol, what is the mass of 1.05 x 1024 molecules of the substance? HTML Edita T. x : A 6.25 g sample of magnetite (Fe3O4) contains 4.52 g of Fe. What are the percentages of iron and oxygen in magnetite? HTML Editor Calculate the number of moles of NaHCO3(sodium bicarbonate, or baking soda) in a 5.0 g sample of this substance. A chemical reaction requires 3.50 moles of copper(II) nitrate, Cu(NO3)2....
Qustion Campleon Status: QUESTION 7 What is the mass of a 4.110-mol sample of sodium hydroxide? Oa. 98.6 g Ob0.1028 g Oc 164,4 g O d.9.732 g Oe. 40.00 g QUESTION 8 A sample of ammonia has a mass of 89.9 g. How many molecules are in this sample? Oa541 x 1025 molecules Ob.5.28 molecules Oc3.18x 1024 molecules Od 1.14 x 1023 molecules x 10-15, molecules QUESTION 9 A mole of a chemical substance represents Oa.6.02 x 1025 chemical particles...
The solubility product, Ksp, for cobalt(III) hydroxide, Co(OH)3, is 1.6X104 at 25°C. What is the molar solubility of cobalt(III) hydroxide in a solution containing 0.077 M KOH at 25°C? 125.82e-41 x M Did you remember that the molar solubility of a substance is reduced whenever a common ion is present? Supporting Materials Periodic Table Constants and Factors Supplemental Data Additional Materials Tutorial -/50 points FSUGenChem2L1 8.PRE.002. Complete the following table of data for Ce2(SO4)3 9 H20. (Assume the density of...
DATA Trial 1 Trial 2 Mass test tube (g) 42.67 41.41 Mass test tube + metal (g) 73.15 71.47 3.52 3.49 106.09 35.22 100 100 Mass strxofoam cups (g) Mass strxofoam cups + water (g) Initial temperature metal (°C) Initial temperature water (°C) Final temperature metal and water (°C) Specific heat water (J/g. °C) 20.9 19.6 21.9 22.8 4.184 4.184 CALCULATIONS Trial 1 Trial 2 mmetal (g) | mwater (g) | Atwater. (°C) Atmetal (°C) Qwater (J) Qmetal (J) Smetal...
5) How many moles of hydrogen gas are needed to react with oxygen to form one mole of 5) water? 2H2(8) + O268) - 2H20(1) A) 4 mol B) 1 mol C) 2 mol D) 0.5 mol E) 6 mol 6) Incomplete combustion occurs when there is insufficient oxygen to react with a compound. The suffocating gas carbon monoxide is a product of incomplete combustion. How many moles of oxygen gas are required for the complete combustion of 11.0 moles...
1) One mole of copper(II) sulfate, CuSO4, contains O atoms. 2) What is the molar mass of Mg3(PO4)2, a substance formerly used in medicine as an antacid? 3) How many moles of K2SO4 are in 15.0 g of K2SO4? 17) How many grams of glucose are needed to prepare 400 mL of a 2.0%(m/v) glucose solution? 18) How many moles of CaCl2 are in 250 mL of a 3.0 M of CaCl2 solution? 19) What volume of 0.10 M NaOH...
The solubility product, Ksp, for cobalt(III) hydroxide, Co(OH)3, is 1.6 x 10-44 at 25°C. What is the molar solubility of cobalt(III) hydroxide in a solution containing 0.077 M KOH at 25°C? Supporting Materials Periodic Table Supplemental Data Constants and Factors Additional Materials Tutorial Complete the following table of data for Cez(SO4)3.9 H20. (Assume the density of water is 1.00 g/ml.) Кsp AG (kJ/mol) T(°C)| Solubility Concentration (g/100.9) (M ) 15.0 12.2 9.27 40 4.9 ) 27.0 40/ 39.0 6.89 40...
Most questions answered within 3 hours.
-
Deacon Corporation has provided the following financial data
from its balance sheet and income statement:
Year...
asked 39 minutes ago -
List and discuss at least three variables from everyday life for
which you expect the variable ...
asked 38 minutes ago -
A high-pass filter consists of a 1.60 μF capacitor in series
with a 125 Ω resistor....
asked 40 minutes ago -
A newly developed artificial intelligence has trouble
distinguishing hand-written numbers from hand-written alphabets.
There are pictures...
asked 58 minutes ago -
The carbonate ion CO3 2- has multiple resonance structures.
a. Draw them and assign the hybridization...
asked 51 minutes ago -
In doing an allocation for a basket purchase
Use the individual costs and the total market...
asked 59 minutes ago -
what were the social political and economic causes and impacts of
the late 19th century urban...
asked 56 minutes ago -
if the magnitude of a velocity vector is 10m/s and it
makes an angle of 45...
asked 59 minutes ago -
Which amino acid has a basic R group?
A) tyrosine
B) Isoleucine
C) Glutamic Acid
D)...
asked 1 hour ago -
Is there the need for the government to have hackers. Please
share your thoughts.
asked 1 hour ago -
Explain why you should not lose any LDH activity when you
centrifuge a crude sample at...
asked 1 hour ago -
An AA battery (object), standing on end, is placed to the left
of a diverging lens...
asked 1 hour ago