You analyzed 2.475 of a mixture of NaCl, SiO2 and CaCO3. You isolate .825g NaCl, .825g...
You analyzed 2.475 of a mixture of NaCl, SiO2 and CaCO3. You isolate .825g NaCl, .825g of CaCO3 and .580 g SiO2. You were told that the original mixture contained 35% NaCl, 45% CaCO3 and 20% SiO2. Calculate, compare, and offer an explanation for the differences in the composition of NaCl, CaCO3 and SiO2 you recovered. Explain.
Homework Answers
9Add Answer to:
You analyzed 2.475 of a mixture of NaCl, SiO2 and CaCO3. You
isolate .825g NaCl, .825g...
You take 20.0g of a sucrose (C12H22O11) and NaCl mixture and dissolve it in 1.0L of water
You take 20.0g of a sucrose (C12H22O11) and NaCl mixture and dissolve it in 1.0L of water. The freezing point of this solution is found to be -0.426 degress celsius. Assuming ideal behavior, calculate the mass percent composition of the original mixture, and the mole fraction of sucrose in the original mixture
Please answer 6a through 6e. Thank you! 6. A 1.500 g sample of a mixture of...
Please answer 6a through 6e.
Thank you!
6. A 1.500 g sample of a mixture of solid Na PO:12H.O mixed with NaCl, was dissolved in water, reacted with aqueous 1 M SrCl, and 0.520 g Sr,(PO), precipitate was collected and dried to a constant mass. If the reagent tests demonstrated that Na,PO-12H0 was the limiting reactant in the precipitation reaction, calculate the mass percent of Na,PO-12H,O in the original sample. a. How many moles of Sr (PO), were produced? b....
can you help me with all these questions? 4. (25 points) Fractional distillation of a mixture...
can you help me with all these questions?
4. (25 points) Fractional distillation of a mixture of 1:1 ethyl acetate (B.P. 77.5C) and 1-butanol (B.P. 117.0 °C) was performed, and different fractions were collected. a. Describe in detail, how many different fractions you b. Plot a graph for the fractional distillation data you will c. How can you use IR to check if the final fraction is will collect collect. pure or not? s. (20 points) How do you separate...
Separating a Mixture, Recrystallization, pre-lab assignment could you also explain why you chose that substance for...
Separating a Mixture, Recrystallization, pre-lab
assignment
could you also explain why you chose that substance for the empty
spaces and question marks
EXPERIMENT 4 Pre-Lab Assignment Separating a Mixture, Recrystalliration Name Date 1. Complete the following flowchart which shows how to separate a mixture of sand, sodium chloride and acetanilide. Notice that after a separation process (a down arrow) the filtered solids are shown on the left and the filtrate (the liquid) is shown on the right. The terminal step...
How do you calculate questions 1 - 8 for the data analysis section? A. Precipitation of CaC,O, H,O from the Salt...
How do you calculate questions 1 - 8 for the data analysis
section?
A. Precipitation of CaC,O, H,O from the Salt Mixture Unknown number Trial 1 Trial 2 1. Mass of beaker (g) 59.45 59.45 5.oS Mass of beaker and salt mixture (g) 2. 3. Mass of salt mixture (g) I, oo oS 4. Mass of filter paper (g 5. Mass of filter paper and product after air-dried or oven-dried (g) 0, 35 6. Mass of dried product (g) 7....
Chablis is a 14 year-old female who has been referred to you by her mother and...
Chablis is a 14 year-old female who has been referred to you by her mother and family physician. Chablis’ mom is concerned that she is not eating right and her doctor wants you to give Chablis some nutrition advice because she wants to be a vegetarian. Chablis has heard that red meat contains a lot of fat and she “does not want to get fat.” A physical exam by her physician shows that Chablis is in the early stage of...
Post Lab Questions what is the purpose of glacial acetic acid in this reaction? (5 points)...
Post Lab Questions what is the purpose of glacial acetic acid in this reaction? (5 points) 2. How does KI-starch paper work? What is the source of the dark color 3. What is the purpose of adding saturated aqueous sodium bisult What reaction is taking place? Write out the bar my saturated aqueous sodium bisulfite to the reaction mixture? is taking place? Write out the balanced equation for this reaction. Why do you e kl-starch paper test after adding the...
I need helppp with my AP chem lab
Purpose: To calculate the amount of AgNO3 present in an unknown solution of water through the process of gravimetric analysis with NaCl. Background: Have you ever had difficulty lathering soap or find that the scum in your shower constantly needs to be removed? These are signs of “hard water.” Soap does not lather well in hard water because metal ions, such as Ca2+, form precipitates, creating “soap scum.” A precipitate is an insoluble compound that forms when soluble ions in...
Questions and Exercises 1. In the course of reflux of the triglyceride in a sodium hydroxide solu...
Organic Chemistry Help!
Questions and Exercises 1. In the course of reflux of the triglyceride in a sodium hydroxide solution you will notice a lot of foaming. Explain. What is left behind in the aqueous layer after filtration of the saponification product? The starting material and the product of the saponification reaction have similar melting points. How do you know you actually isolated a new product rather than just recovered the starting material? Give at least two different methods to...
PO2508 Understanding Statistics EXERCISE SHEET - l. Classify each of the following as nominal, ordinal, interval...
PO2508 Understanding Statistics EXERCISE SHEET - l. Classify each of the following as nominal, ordinal, interval or ratio level data: a. The telephone area code of interviewees n b. The weight of fish landed at Fraserburgh c. Survey responses that scale attitudes towards a business from 1 to 5 dL d. The time required to sell a house e. Football players shirt numbers Inver f. The Richter scale used to measure earthquake strength g. Job satisfaction ratings of a sample...
Please answer 6a through 6e.
Thank you!
6. A 1.500 g sample of a mixture of solid Na PO:12H.O mixed with NaCl, was dissolved in water, reacted with aqueous 1 M SrCl, and 0.520 g Sr,(PO), precipitate was collected and dried to a constant mass. If the reagent tests demonstrated that Na,PO-12H0 was the limiting reactant in the precipitation reaction, calculate the mass percent of Na,PO-12H,O in the original sample. a. How many moles of Sr (PO), were produced? b....
can you help me with all these questions?
4. (25 points) Fractional distillation of a mixture of 1:1 ethyl acetate (B.P. 77.5C) and 1-butanol (B.P. 117.0 °C) was performed, and different fractions were collected. a. Describe in detail, how many different fractions you b. Plot a graph for the fractional distillation data you will c. How can you use IR to check if the final fraction is will collect collect. pure or not? s. (20 points) How do you separate...
Separating a Mixture, Recrystallization, pre-lab
assignment
could you also explain why you chose that substance for the empty
spaces and question marks
EXPERIMENT 4 Pre-Lab Assignment Separating a Mixture, Recrystalliration Name Date 1. Complete the following flowchart which shows how to separate a mixture of sand, sodium chloride and acetanilide. Notice that after a separation process (a down arrow) the filtered solids are shown on the left and the filtrate (the liquid) is shown on the right. The terminal step...
How do you calculate questions 1 - 8 for the data analysis
section?
A. Precipitation of CaC,O, H,O from the Salt Mixture Unknown number Trial 1 Trial 2 1. Mass of beaker (g) 59.45 59.45 5.oS Mass of beaker and salt mixture (g) 2. 3. Mass of salt mixture (g) I, oo oS 4. Mass of filter paper (g 5. Mass of filter paper and product after air-dried or oven-dried (g) 0, 35 6. Mass of dried product (g) 7....
Post Lab Questions what is the purpose of glacial acetic acid in this reaction? (5 points) 2. How does KI-starch paper work? What is the source of the dark color 3. What is the purpose of adding saturated aqueous sodium bisult What reaction is taking place? Write out the bar my saturated aqueous sodium bisulfite to the reaction mixture? is taking place? Write out the balanced equation for this reaction. Why do you e kl-starch paper test after adding the...
Organic Chemistry Help!
Questions and Exercises 1. In the course of reflux of the triglyceride in a sodium hydroxide solution you will notice a lot of foaming. Explain. What is left behind in the aqueous layer after filtration of the saponification product? The starting material and the product of the saponification reaction have similar melting points. How do you know you actually isolated a new product rather than just recovered the starting material? Give at least two different methods to...
PO2508 Understanding Statistics EXERCISE SHEET - l. Classify each of the following as nominal, ordinal, interval or ratio level data: a. The telephone area code of interviewees n b. The weight of fish landed at Fraserburgh c. Survey responses that scale attitudes towards a business from 1 to 5 dL d. The time required to sell a house e. Football players shirt numbers Inver f. The Richter scale used to measure earthquake strength g. Job satisfaction ratings of a sample...
Most questions answered within 3 hours.
-
Using MARS simulator, write MIPS programs according to
the following scenarios: Receive a positive integer number...
asked 45 minutes ago -
An object in front of a concave mirror has a real image that is
11.5 cm...
asked 59 minutes ago -
Consider the reaction, C3 H8 + O2 --> CO2 + H2O. How many
moles of O2...
asked 2 hours ago -
You and your opponent both roll a fair die. If you both roll the
same number,...
asked 3 hours ago -
In a study of the accuracy of fast food drive-through orders,
Restaurant A had 257 accurate...
asked 3 hours ago -
Identify and describe in detail the four categories of
institutions that could be included in a...
asked 3 hours ago -
In python
class Customer:
def __init__(self, customer_id, last_name, first_name, phone_number, address):
self._customer_id = int(customer_id)
self._last_name =...
asked 3 hours ago -
What is an example of a limitation in implementing a new
ERP system and how it...
asked 3 hours ago -
In a section of 9.7cm of an artery with a radius of 2.6mm there
is a...
asked 3 hours ago -
the two carboxylic acid groups of aspartic acid have different
acidities with pKa values of 2.1...
asked 3 hours ago -
Would CuCO3 aqueous salt combined with calcium chloride
form a solid precipitate? If so, what would...
asked 3 hours ago -
How do ECM Solutions assist in embedding a culture of continuous
improvement in an organization? (Project...
asked 3 hours ago