Question

In: Chemistry

The precipitate was stored for a week and reweighed a week later.

 1. The precipitate was stored for a week and reweighed a week later. The amount of product decreased by 0.03g. Provide an explanation for this.

 2. Other procedures require the use of 0.1 M MgSO4 - H2O rather than the 10% (m/m) that we used. What is the molarity of a 10% MgSO4 - H2O solution?

 3. List 3 steps in the procedure where loss of product could occur that are not human error.


Solutions

Expert Solution



Related Solutions

Suppose that the average number of equipment breakdowns at a factory per week is 5. Later...
Suppose that the average number of equipment breakdowns at a factory per week is 5. Later we’ll show that the average is our best guess at the expected value of ? = ?ℎ? ?????? ?? ????????? ?????????? ?? ? ????? ???? (assuming that this distribution stays the same across multiple weeks.) It’s also known that, through some other sample statistic, that our best guess at the standard deviation of X given the data is 0.8. a. With the help of...
Later this week you will create a PowerPoint assignment addressing societal/social influences on thoughts and behaviors....
Later this week you will create a PowerPoint assignment addressing societal/social influences on thoughts and behaviors. In preparation for this assignment review the reading materials and links provided above and respond to the following in a short essay: Describe socialization, explain what it is, and how it occurs. Discuss the relationship between socialization and culture. How do socialization and cultural influence attitudes and contribute to stereotyping?
What is the charge stored in C_1? What is the charge stored in C_2? What is...
What is the charge stored in C_1? What is the charge stored in C_2? What is the charge stored in C_3? What is the voltage V_1 across C_1? What is the voltage V_2 across C_2? What is the voltage V_2 across C_3? What is the charge stored in C_1? What is the charge stored in C_2? What is the charge stored in C_3?
When ammonia is added to a solution that has Cu(OH)2(s) precipitate in it, the precipitate dissolves....
When ammonia is added to a solution that has Cu(OH)2(s) precipitate in it, the precipitate dissolves. Use Le Châtelier’s principle to explain this.
For which of the mixtures will Ag2SO4(s) precipitate?
For which of the mixtures will Ag2SO4(s) precipitate?  150.0 mL of 0.10 M Na2SO4(aq) and 5.0 mL of 0.20 M AgNO3(aq) 150.0 mL of 0.10 M Na2SO4(aq) and 5.0 mL of 0.30 M AgNO3(aq) 150.0 mL of 0.10 M NazSO4(aq) and 5.0 mL of 0.40 M AgNO3(aq) 150.0 mL of 0.10 M Na2SO4(aq) and 5.0 mL of 0.50 M AgNO3(aq)Which of the compounds is more soluble in an acidic solution than in pure water? Zn(OH) KCIO4 PbS CuBr CuCNA certain indicator, HA, has a Ka value of 1.6 x 10-7....
Task 2 (1 mark) Transformation of data stored in the relational tables into data stored in...
Task 2 (1 mark) Transformation of data stored in the relational tables into data stored in BSON collection.
What are the components of stored heat?
What are the components of stored heat?
For which of the following mixtures will Ag2SO4(s) precipitate?
For which of the following mixtures will Ag2SO4(s) precipitate? 150.0 mL of 0.10 M Na2SO4(aq) and 5.0 mL of 0.20 M AgNO3(aq) 150.0 mL of 0.10 M Na2SO4(aq) and 5.0 mL of 0.30 M AgNO3(aq) 150.0 mL of 0.10 M Na2SO4(aq) and 5.0 mL of 0.40 M AgNO3(aq) 150.0 mL of 0.10 M Na2SO4(aq) and 5.0 mL of 0.50 M AgNO3(aq)
SQL stored procedures Create 2 stored procedures: sp_AddNewUser and sp_AddNewRole. Use the ManyToMany script as your...
SQL stored procedures Create 2 stored procedures: sp_AddNewUser and sp_AddNewRole. Use the ManyToMany script as your base table structures. The stored procedure should accept the parameters needed to input the data for each table. NOTE: You do not need to input the UserID or RoleID. These are surrogate keys and the system automatically inserts them when you insert a row in the tables.   On execution, the stored procedure should check the database to see if the user exists, if so,...
Consider 3 time periods (now, a bit later, a lot later). The “Now” period:  If a student...
Consider 3 time periods (now, a bit later, a lot later). The “Now” period:  If a student goes to school now, they will have to pay $100 for books/transportation/fees/etc.  In addition, they will not be able to work, hence the family income is reduced by $600. The “a bit later” period:  If a person goes to school in the “now” period, they will earn $500 more than a person who does not go to school. The “a lot later” period:  If a person goes...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT