Question
Asked Oct 28, 2019

 Determine the quantity (g) of pure CaCl2 in 7.5 g of CaCl2•9H2O. Show your work.

check_circleExpert Solution
Step 1
Molar mass of CaCl2
9H20 273.1215 g/mole
Moles of CaCl2
7.5 g/ 273.1215 g.mol
9H20
=0.0275 moles CaCl2 9H20
Now we know in the CaCl2 9H20 there is 1 CaCl2
So,
1 moles of CaCl2 9H20 = 1 moles of CaCl2
So, 0.0275 moles of CaCl2 9H20
0.0275 moles of CaCl2
help_outline

Image Transcriptionclose

Molar mass of CaCl2 9H20 273.1215 g/mole Moles of CaCl2 7.5 g/ 273.1215 g.mol 9H20 =0.0275 moles CaCl2 9H20 Now we know in the CaCl2 9H20 there is 1 CaCl2 So, 1 moles of CaCl2 9H20 = 1 moles of CaCl2 So, 0.0275 moles of CaCl2 9H20 0.0275 moles of CaCl2

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour*

See Solution
*Response times may vary by subject and question
Tagged in

Science

Chemistry

Ideal gases

Related Chemistry Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: It takes 54.0 J to raise the temperature of an 11.5 g piece of unknown metal from 13.0 Celcius to 24...

A: The relationship between heat required and specific heat of a substance is given below.

question_answer

Q: Consider the combustion of an alcohol:C3H8O(l) + O2(g) → CO2(g) + H2O(g)a. Balance the chemical equa...

A: Balanced chemical reaction is given by:

question_answer

Q: I really need help with ionic and covalent bonds with bohr models and lewis dot structure. Thank you...

A: for an ionic bond the bohr\'s model is 

question_answer

Q: In the following experiment, a coffee cup calorimeter containing 100 mL of H2O is used. The initial ...

A: Heat of solution of CaCl2 is -82.8kilojoule/mol.The mass of CaCl2 added to the calorimeter is 2.00 g...

question_answer

Q: If the pressure of a certain gas was measured to be 573 mmHg with a mercury barometer.  What would b...

A: Given:573 mmHg.

question_answer

Q: A 5.31 g sample of compound that contains only hydrogen and sulfur was combusted, and yielded 10.0 g...

A: Moles of hydrogen and sulfur from 10.0g of SO2 and 2.81g of H2O can be calculated as

question_answer

Q: A 232 lb fullback runs 42 yd at 19.8 +_ 0.1 mi/h. what is the uncertainty of his position?

A: Given information:Mass = 232 lbVelocity =19.8 ± 0.1 mi/h

question_answer

Q: What is the change in enthalpy when 38.2 g of CH4(g) reacts completly with O2(g) to form CH3OH(g) at...

A: The reaction is:

question_answer

Q: Given the following equation: 2 NaClO3 ➝ 2 NaCl + 3 O2, if 12.00 moles of NaClO3 reacted in the reac...

A: (a) given,Moles of NaClO3 = 12.00 molThe balanced equation is given as:2 NaClO3 ➝ 2 NaCl + 3 O2From ...