![shaylawaldo11](/avatars/10244.jpg)
shaylawaldo11
19.01.2021 •
Chemistry
Fe (s) + S (I) --> Fes (s) In the experiment above, 7.62 g of Fe
are allowed to react with 8.67 g of S. How much FeS is
formed?
a) 14.8 g
b) 12.2 g
C) 13.7 g
d) 19.9 g
Solved
Show answers
More tips
- H Health and Medicine Naskol ko Opasen Ukus Kleshcha i Kak Ego Raspoznat...
- H Health and Medicine 10 Ways to Cleanse Your Colon and Improve Your Health...
- D Dating, Love, Relationships How to Overcome Jealousy: Tips and Tricks...
- H Health and Medicine Angina: Causes, Symptoms, and Treatment...
- C Computers and Internet How to Learn to Type Fast?...
- F Food and Cooking Delight for Gourmets: How to Prepare Liver Pate...
- S Style and Beauty How to braid friendship bracelets?...
- H Health and Medicine Mercury Thermometer Danger: What to do when a thermometer breaks?...
- F Food and Cooking Which Calamari Salad is the Most Delicious?...
- S Society and Politics 10 Tips for Boosting Your Self-Esteem...
Answers on questions: Chemistry
- C Chemistry Oxygen gas was produced in a reaction and collected over water. A 136.1 mL mL sample of gas was collected over water at 25C and 1.06 atm. The vapor pressure of water is 23.76...
- C Chemistry Please help ASAP! please and thank you have a great and blessed day!...
- C Chemistry If 4.0 mol of hf react with 9.0 mol of sio which is the limiting reaction ...
- C Chemistry Chemical reactions can only occur when... 1)particles are able to separate 2) particles mix together 3) particles come together for a sufficient amount of time 4) particles...
- C Chemistry Question 2 3 pts Which of the following names is correctly matched with the corresponding chemical formula (as outlined in class)? *Note: All numbers should be considered as...
- C Chemistry calculate the mols of alt gas if the volume is 0.97 liters at a temperature of 12 C and the pressure is 152 Kpa’s...
- C Chemistry What piece of apparatus could be used to measure the volume of gas produced in a reaction 1)beaker 2)gas syringe 3) top pan balance...
- C Chemistry COLOR I HEME 2. Respiration is the process by which plant and animal cells make energy by reacting glucose (C6H1206) with oxygen (O2). In addition to energy being released,...
- C Chemistry Cu + O2 --Cu2O a. Write the balanced equation for this reaction. b. How many grams of Cu are needed to produce 300. grams of Cu2O? c. How many grams of Cu2O can be produced...
- C Chemistry What two things combine with oxygen to form ground-level ozone? A) NOx and ODS B) CFCs and halons C) NOx and VOC D) HFCs and HCFCs...
Ответ:
The concentration of CaCl2 in this solution is 0.563 M
Explanation:
Step 1: Data given
mass of CaCl2 = 23.7 grams
Molar mass of CaCl2 = 110.98 g/mol
mass of water = 375 grams
Molar mass of water = 18.02 grams
Volume of the solution = V
Step 2: Calculate the mass of solution
Mass of the solution = Mass of solute + Mass of solvent
Mass of the solution = 23.7 grams + 375 grams
Mass of the solution = 398.7 grams
Step 3: Calculate the volume
Volume = mass / density
Volume = 398.7 grams / 1.05 mg/mL
Volume = 379.71 mL = 0.3791 L
Step 4: Calculate moles of CaCl2
Number of moles CaCl2 = mass CaCl2 / Molar mass CaCl2
Number of moles CaCl2 = 23.7 grams / 110.98 g/mol
Number of moles CaCl2 = 0.21355 moles
Step 5: Calculate the concentration of CaCl2
Concentration = Number of moles / Volume
Concentration = 0.21355 moles / 0.3791 L
Concentration = 0.563 M
The concentration of CaCl2 in this solution is 0.563 M