1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
antoniya [11.8K]
3 years ago
12

Calculate weight of anhydrous compound from remains upon dehydration of 2g copper sulphate pentahydrate

Chemistry
1 answer:
Greeley [361]3 years ago
4 0

Answer:

1.28 g

Explanation:

Mass of anhydrous compound/molar mass of anhydrous compound = mass of hydrated compound/ molar mass of hydrated compound

Mass of anhydrous compound = ?

Mass of hydrated compound = 2g

Molar mass of anhydrous compound= 160 g/mol

Molar mass of hydrated compound = 250 g/mol

x/160 = 2/250

250x = 2 ×160

x= 2 × 160/250

x= 1.28 g

You might be interested in
200 grams of an organic sample which contains only carbon, hydrogen and oxygen is analyzed and found to contain 97.30grams of ca
Klio2033 [76]
The empirical formula is C2H4O
7 0
3 years ago
For the reaction ? Fe+? H2o ⇀↽? Fe3o4+? H2 , a maximum of how many grams of fe3o4 could be formed from 354 g of fe and 839 g of
Evgesh-ka [11]

The given reaction is:

3Fe + 4H2O → Fe3O4 + 4H2

Given:

Mass of Fe = 354 g

Mass of H2O = 839 g

Calculation:

Step 1 : Find the limiting reagent

Molar mass of Fe = 56 g/mol

Molar mass of H2O = 18 g/mol

# moles of Fe = mass of Fe/molar mass Fe  = 354/56 = 6.321 moles

# moles of H2O = mass of h2O/molar mass of H2O = 839/18 = 46.611 moles

Since moles of Fe is less than H2O;  Fe is the limiting reagent.

Step 2: Calculate moles of Fe3O4 formed

As per reaction stoichiometry:

3 moles of Fe form 1 mole of Fe3O4

Therefore, 6.321 moles of Fe = 6.321 * 1/ 3 = 2.107 moles of Fe3O4

Step 4: calculate the mass of Fe3O4 formed

Molar mass of Fe3O4 = 232 g/mol

# moles = 2.107 moles

Mass of Fe3O4 = moles * molar mass

= 2.107 moles * 232 g/mol = 488.8 g (489 g approx)

 


7 0
3 years ago
Read 2 more answers
HELPP ME !!!! DUE NOW!!!!!!
Deffense [45]

Answer:

the answer is

a

b

d

c

Explanation:

hopeit help

8 0
2 years ago
Read 2 more answers
Suppose that there is an air sample and a water sample, each of the same mass and each with an initial temperature, Tinitial, of
klasskru [66]

Answer:

The air will reach a higher final temperature because its specific heat is lower.

Explanation:

6 0
3 years ago
Read 2 more answers
Where in a data table should units of measurement be shown?
Vikentia [17]
The unites of measurement in a data table should be shown in the headings of some columns.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Will give brainliest
    5·2 answers
  • In what respect does an atom of magnesium differ from a magnesium ion (Mg^{2+})?
    7·1 answer
  • What is the atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons? What is the atomic number of an atom that
    5·1 answer
  • What is the mass of 3.6 x 10∧24 atoms of Zinc (Zn)?
    11·1 answer
  • Is the following set of quantum numbers a valid set?<br><br> [3, 2, 2, 1/2]
    9·1 answer
  • Which part(s) of a microscope forms an enlarged image of a specimens?
    7·2 answers
  • How many atoms are in 3.8 mol of calcium? Round your answer to 2 decimal places.
    13·1 answer
  • Helppppppp plzzzzzzzzz
    11·1 answer
  • The map shows watersheds with a high potential for soil, nitrogen, and pesticide runoff. If you were in charge of handling the p
    14·1 answer
  • He nitrogen cycle is one of the most important (and complex!) of the biogeochemical cycles. Why is nitrogen important?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!