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
inysia [295]
3 years ago
10

A 5.00 gram sample of magnesium sulfate hydrate (epsom salt) is heated in the lab to form anhydrous magnesium sulfate. After hea

ting the substance, it is recorded that 2.86 grams of anhydrous magnesium sulfate remain. What is the chemical formula for this sample of magnesium sulfate hydrate
Chemistry
1 answer:
Ostrovityanka [42]3 years ago
5 0

Answer:

The answer to your question is  MgSO₄ 5H₂O

Explanation:

Data

mass of MgSO₄ = 2.86 g

mass of H₂O = 2.14 g (5 - 2.86)

Process

1.- Calculate the molecular mass of the compounds

MgSO₄ = 24 + 32 + (16 x 4) = 120

H₂O = 16 + 2 = 18

2.- Convert the grams obtain to moles

                        120 g of MgSO₄  --------------- 1 mol

                         2.8 g                  ----------------  x

                         x = (2.8 x 1)/120

                        x = 0.024 moles

                         18 g of H₂O --------------------- 1 mol

                         2.14 g           -------------------- x

                         x = (2.14 x 1)/18

                         x = 0.119

3.- Divide by the lowest number of moles

MgSO₄  = 0.024/0.024 = 1

H₂O = 0.119/ 0.024 = 5

4.- Write the molecular formula

                   MgSO₄5H₂O                        

You might be interested in
A person's heart beats 72 times a minute. At this rate, how many times does it beat in one hour?
sesenic [268]

At one minute, a persons's heart beats 72 times.

Therefore, in one hour or 60 minutes, a person's heart will beat (60×72) times, i.e., 4320 times

Answer is 4320 times

6 0
3 years ago
When the name of an anion that is part of an acid ends in -ite, the acid name includes the suffix _____.
Marina86 [1]

(B) suffixous

Hope It Helps

3 0
3 years ago
Read 2 more answers
Please help i will give 20 points
NNADVOKAT [17]

Answer:

It's A., thats conduction and its a heat transfer

Explanation:

6 0
2 years ago
What is the molecular formula for water?
Alexxandr [17]

Answer:

H2O

Explanation:

There are 2 hydrogen atoms and 1 oxygen atom

5 0
2 years ago
Read 2 more answers
Which action would most likely create a light waye?
ladessa [460]
The answer that h are looking for is c
8 0
3 years ago
Read 2 more answers
Other questions:
  • Calculate the pH of a 0.50 M HIO. The Ka of hypoiodic acid, HIO, is 2.3x10–11.0.305.325.479.474.80
    5·1 answer
  • You need to prepare 100.0 mL of a pH 4.00 buffer solution using 0.100 M benzoic acid (p K a = 4.20 ) and 0.220 M sodium benzoate
    5·2 answers
  • Find the percentage composition for iron in the following compound Fe2(CO3)3
    7·1 answer
  • Describe how magnetic forces and electric forces are similar and different from each other
    15·1 answer
  • What is the systematic name of Mg(NO3)2?
    7·1 answer
  • Which of the following is an accurate example of how the water cycle can influence local weather? A. An increase in evaporation
    6·2 answers
  • How many moles are in 4.24kg of Na2CO3?
    6·1 answer
  • Which statement justifies that hydrogen peroxide (H2O2) is a polar molecule?
    11·1 answer
  • Helpppppp i hate chemistry
    12·1 answer
  • Science science science science
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!