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
eimsori [14]
3 years ago
6

Formulate a Hypothesis Answer the lab question “How can drying a hydrate help you determine its mole ratio of water to salt?” by

filling in the boxes below to create a hypothesis. If . . . then . . . because . . . .
Chemistry
2 answers:
Rzqust [24]3 years ago
4 0

If: the Initial mass of an unknown hydrate can be determined

then: the hydrate can be heated to dehydrate it and the mole ratio can be determined

because: the difference in this is equivalent to the water in the hydrate.

inysia [295]3 years ago
3 0
If we dry the hydrate then, what will remain is the amount of salt, all of the water will evaporate. We are then able to determine the masses of the salt and water and consequently be able to determine the number of moles by dividing the masses by the molar mass. Then, solve for the mole ratio. 
You might be interested in
Which state of matter requires special conditions to form and is affected by electric and magnetic fields
amid [387]

Answer:

The uniqueness of the plasma state is due to the importance of electric and magnetic forces that act on a plasma in addition to such forces as gravity that affect all forms of matter.

Explanation:

3 0
2 years ago
Will mark the brainiest later for correct answers! Please show work.
Elodia [21]

Answer:

According to avogadro's law, 1 mole of every substance contains avogadro's number 6.023\times 10^{23} of particles and weighs equal to its molecular mass.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}

\text{Number of moles}=\frac{\text{Given molecules}}{\text {Avogadros number}}

a. moles in 14.08 g of C_{12}H_{22}O_{11} = \frac{14.08g}{342.3g/mol}=0.04113moles

molecules in 14.08 g of C_{12}H_{22}O_{11} = 0.04113\times 6.023\times 10^{23}=0.2477\times 10^{23}

b. moles in 17.75 g of NaCl = \frac{17.75g}{58.5g/mol}=0.3034moles

molecules in 17.75 g of NaCl = 0.3034\times 6.023\times 10^{23}=1.827\times 10^{23}

formula units 17.75 g of NaCl = 0.3034\times 6.023\times 10^{23}=1.827\times 10^{23}

c. moles in 20.06 g of  CuSO_4.5H_2O= \frac{20.06g}{249.68g/mol}=0.08034moles

formula units in 20.06 g of  CuSO_4.5H_2O= 0.08034\times 6.023\times 10^{23}=0.4839\times 10^{23}

7 0
3 years ago
Which of the answer choices best describes elements?
lianna [129]
It can be a compound or a single element. An element is a pure substance that cannot be separated into simpler substances by chemical or physical means. There are about 117 elements, butcarbon, hydrogen, nitrogen and oxygen are only a few that make up the largest portion of Earth.

I would say d.
4 0
3 years ago
Which kind of food contains lots of carbphydrates? chicken, cheese. potatoes, nuts
Evgesh-ka [11]
Cheeze is the most one i hope it helps
8 0
3 years ago
Read 2 more answers
What is the ph of a 0.006 m koh solution? 1. 11.78 2. 7.00 3. 2.22 4. 8.88 5. 5.12?
Stels [109]
The concentration of OH⁻ is first converted to pOH bu using followinf formula,

                                           pOH  =  -log [OH⁻]
Putting value,
                                           pOH  =  -log (0.006)

                                           pOH  =  2.221
As we know,
                                   pH + pOH  =  14
Solving for pH,
                                   pH  =  14 - pOH
Putting value of pOH,
                                   pH  =  14 - 2.221

                                   pH  =  11.779
Result:
           Option-1
is the correct answer.
4 0
3 years ago
Other questions:
  • When you convert to you remove the placeholder zeros
    8·1 answer
  • Polygamy is which of the following? The practice of having two or more husbands. The practice of having two or more wives. The p
    12·2 answers
  • How many moles of oxygen are needed to react with 23.8 moles of aluminum?
    7·1 answer
  • hat is the relationship between the vapor pressure of a liquid and the measured pressure of the gas above the liquid at a given
    6·1 answer
  • "Write the balanced chemical equation for the neutralization reaction that occurs when an aqueous solution of hydrochloric acid
    6·1 answer
  • A doorknob makes it easier for you to open doors because it is what type of simple machine?
    10·1 answer
  • How many grams are in 3.93 x 10^24 molecules of CCl4?
    9·1 answer
  • Un ácido nítrico tiene una densidad de 10% ,calcular el peso de 1000 centímetros cúbicos
    6·1 answer
  • Depicted below you will see the molecules COH2 and SO3 . Why is COH2 polar while SO3 isn’t?
    5·1 answer
  • What is the Molar mass of Cu2So4
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!