Homework Answers
Add Answer to:
THU Chemicals, water is called the universal solvent, Your answer You are given 13g of water...
Why is water called the universal solvent? A. Water can act as a solute in...
Why is water called the universal solvent? A. Water can act as a solute in many different solutions. B. Water is a nonpolar substance that dissolves polar substances. C. Water is a polar substance that dissolves nonpolar substances. D. Water can act as a solvent in many different solutions.
hey i really need help for the molality to mass question. the solvent is water and...
hey i really need help for the molality to mass question. the
solvent is water and 100g. SOS!
Table 3: Data obtained for the boiling point elevation simulation. (3 marks) Solute Molality (mol/kg) Solution Boiling Point (°C) NaCl(s) 0.0000 100.00 AT) (°C) 0.0 NaCl(s) 0.1711 NaCl(s) 0.3422 NaCl(s) 0.6844 NaCl(s) 1.3688 CaCl2(s) 0.1711 C12H22011(s) 0.1711 Molality to Mass Sample Calculation: (1 mark) PART 3 BOILING POINT ELEVATION 16. Visit this webpage: https://pages, oregon.edu/tgreenbo/colligative.html; the screenshot (Figure 5) below should be...
solve please. Enter your answer in the provided box. The formula that governs the depression of...
solve please.
Enter your answer in the provided box. The formula that governs the depression of freezing point and elevation of boiling point for a solution consisting of a solute dissolved in a solvent is: AT=ix ky Xm Book where: AT = the temperature change between a pure solvent and its solution erences i = the number of species per mole of solute that are dissolved in the solvent (e.g., i=1 for a non-ionic solute that does not break apart...
can sormoen help pleasse A compound made of elements A and B, has a cubic unit...
can sormoen help pleasse
A compound made of elements A and B, has a cubic unit cell. There is an A atom at each corner of the cube and an A atom at the center of each face of the cube. There are eight B atoms that lie entirely within the unit cell. Based on this information, the empirical formula for the compound is: AB2 AB3 AB A₂B 1A4B2 Question 9 (4 points) Which of the following increases the solubility...
An aqueous potassium chloride, KCI, solution is made by dissolving 0,350 mol KCl in 6000 g...
An aqueous potassium chloride, KCI, solution is made by dissolving 0,350 mol KCl in 6000 g of water. Calculate the molality of the solution molality: Choose the best definition for the activated complex, or transition state, from the list below. O A material in the process of changing from solid to liquid or liquid to as A low energy, short-lived molecule that is made in an early step of the reaction and consumed in a later step. A transient, high...
Same Question and data but different parts. Please solve for all three. Last attempt left QUESTION...
Same Question and data but different parts. Please solve for all
three. Last attempt left
QUESTION 1 The data given in question-1 is used in the remainder of the postlab assignment questions. A 2.0 g of unknown material was dissolved in 9.00 mL of water (density of water = 1.0 g/mL) The freezing point of pure water is 0.00 °C and Kf of water is 1.86 °C/m. If the solution made above shows a new freezing point at -2.76 °C,...
Answer the following questions from the given solubility curve. 150 KI 140 130 120 110 NaNO3...
Answer the following questions from the given solubility curve. 150 KI 140 130 120 110 NaNO3 100 90 KNO3 Grams of solute per 100 g H,0 80 70 60 NH3) NHACI 50 KCI Naci 40 30 20 KCIÓ: 10 -Ce2(SO4)3 0 0 10 20 30 40 50 60 70 80 90 100 Temperature (°C) (a) Define solution. Explain with the substance having a trigonal shape from the above solubility curve. (2 marks) (b) Which factor of the solubility, decrease the...
What is the relationship between the moles of solute and the mass of solute? Rewrite the molality expression in terms o...
What is the relationship between the moles of solute and the
mass of solute?
Rewrite the molality expression in terms of grams and molecular
weight.
Background:
Properties that depend on the concentration of particles in solution are called colligative properties. The number of particles in a solvent can affect the freezing or boiling point of solvent. To express the effect of concentration on freezing point or boiling point, molality is used in place of molarity. Molality (m) is the number...
PLEASE SHOW WORK FOR EACH TABLE CLEARLY AND IN CORRECT ORDER! I WILL GIVE YOU A...
PLEASE SHOW WORK FOR EACH TABLE CLEARLY AND IN CORRECT
ORDER! I WILL GIVE YOU A GOOD RATING IF DONE CLEARLY AND CORRECTLY
:)
DATA:
Sodium chloride
Freezing point of Water (°C)
0.00
Freezing point of NaCl (°C)
-4.40
Mass of solute (g)
5.89
Volume of Solvent, mL
100.0
Sugar
Volume of Solvent, mL
100.0
Freezing point of Sucrose (°C)
-1.70
Mass of solute (g)
34.05
Ethyl alcohol
Freezing point of E.G (°C)
-1.80
Mass of solute (g)
6.202
Volume...
74 Percent Concentration -The amount of solute dissolved in a fixed amount of solvent is called the concentration of th...
74 Percent Concentration -The amount of solute dissolved in a fixed amount of solvent is called the concentration of the solution. Concentrations are typically expressed as Mass al.) (% m/m) which is the mass of the solute (g) divided by the mass of the solution [solute+ solvent] (g)x 1000/0; or as Volume ol.) (% v/v ) which is the volume of the solute in a fixed volume of solution (1O0mL of solution) x 1000/0; or less commonly in the laboratory,...
hey i really need help for the molality to mass question. the
solvent is water and 100g. SOS!
Table 3: Data obtained for the boiling point elevation simulation. (3 marks) Solute Molality (mol/kg) Solution Boiling Point (°C) NaCl(s) 0.0000 100.00 AT) (°C) 0.0 NaCl(s) 0.1711 NaCl(s) 0.3422 NaCl(s) 0.6844 NaCl(s) 1.3688 CaCl2(s) 0.1711 C12H22011(s) 0.1711 Molality to Mass Sample Calculation: (1 mark) PART 3 BOILING POINT ELEVATION 16. Visit this webpage: https://pages, oregon.edu/tgreenbo/colligative.html; the screenshot (Figure 5) below should be...
solve please.
Enter your answer in the provided box. The formula that governs the depression of freezing point and elevation of boiling point for a solution consisting of a solute dissolved in a solvent is: AT=ix ky Xm Book where: AT = the temperature change between a pure solvent and its solution erences i = the number of species per mole of solute that are dissolved in the solvent (e.g., i=1 for a non-ionic solute that does not break apart...
can sormoen help pleasse
A compound made of elements A and B, has a cubic unit cell. There is an A atom at each corner of the cube and an A atom at the center of each face of the cube. There are eight B atoms that lie entirely within the unit cell. Based on this information, the empirical formula for the compound is: AB2 AB3 AB A₂B 1A4B2 Question 9 (4 points) Which of the following increases the solubility...
An aqueous potassium chloride, KCI, solution is made by dissolving 0,350 mol KCl in 6000 g of water. Calculate the molality of the solution molality: Choose the best definition for the activated complex, or transition state, from the list below. O A material in the process of changing from solid to liquid or liquid to as A low energy, short-lived molecule that is made in an early step of the reaction and consumed in a later step. A transient, high...
Same Question and data but different parts. Please solve for all
three. Last attempt left
QUESTION 1 The data given in question-1 is used in the remainder of the postlab assignment questions. A 2.0 g of unknown material was dissolved in 9.00 mL of water (density of water = 1.0 g/mL) The freezing point of pure water is 0.00 °C and Kf of water is 1.86 °C/m. If the solution made above shows a new freezing point at -2.76 °C,...
Answer the following questions from the given solubility curve. 150 KI 140 130 120 110 NaNO3 100 90 KNO3 Grams of solute per 100 g H,0 80 70 60 NH3) NHACI 50 KCI Naci 40 30 20 KCIÓ: 10 -Ce2(SO4)3 0 0 10 20 30 40 50 60 70 80 90 100 Temperature (°C) (a) Define solution. Explain with the substance having a trigonal shape from the above solubility curve. (2 marks) (b) Which factor of the solubility, decrease the...
What is the relationship between the moles of solute and the
mass of solute?
Rewrite the molality expression in terms of grams and molecular
weight.
Background:
Properties that depend on the concentration of particles in solution are called colligative properties. The number of particles in a solvent can affect the freezing or boiling point of solvent. To express the effect of concentration on freezing point or boiling point, molality is used in place of molarity. Molality (m) is the number...
PLEASE SHOW WORK FOR EACH TABLE CLEARLY AND IN CORRECT
ORDER! I WILL GIVE YOU A GOOD RATING IF DONE CLEARLY AND CORRECTLY
:)
DATA:
Sodium chloride
Freezing point of Water (°C)
0.00
Freezing point of NaCl (°C)
-4.40
Mass of solute (g)
5.89
Volume of Solvent, mL
100.0
Sugar
Volume of Solvent, mL
100.0
Freezing point of Sucrose (°C)
-1.70
Mass of solute (g)
34.05
Ethyl alcohol
Freezing point of E.G (°C)
-1.80
Mass of solute (g)
6.202
Volume...
74 Percent Concentration -The amount of solute dissolved in a fixed amount of solvent is called the concentration of the solution. Concentrations are typically expressed as Mass al.) (% m/m) which is the mass of the solute (g) divided by the mass of the solution [solute+ solvent] (g)x 1000/0; or as Volume ol.) (% v/v ) which is the volume of the solute in a fixed volume of solution (1O0mL of solution) x 1000/0; or less commonly in the laboratory,...
Most questions answered within 3 hours.
-
Chargaff's results yielded a molar ratio of 0.400 for A to G in
avian tubercle bacillus...
asked 1 hour ago -
Which of the following binds ATP/ADP?
a. microfilaments
b. microtubules
c. intermediate filaments
d. microfilaments and...
asked 2 hours ago -
Assume that the situation can be expressed as a linear cost
function. Find the cost function....
asked 3 hours ago -
(Sort ArrayList) Write the following method that sorts an
ArrayList: public static > void sort(ArrayList list)...
asked 4 hours ago -
2) A 9 volt battery is connected to a parallel plate capacitor
with an initial capacitance...
asked 3 hours ago -
Prince Equipment has to decide whether to obtain $1,000,000 of
financing by: (1) selling common stock...
asked 4 hours ago -
The terms electrical and electronic have similar but
different meanings which of the following statement is...
asked 4 hours ago -
You wish to test the claim that the mean GPA of night students
is than 2.5...
asked 5 hours ago -
A soft drink machine outputs a mean of 25 ounces per cup. The
machine's output is...
asked 6 hours ago -
Ross Co., Westerfield, Inc., and Jordan Company announced a new
agreement to market their respective products...
asked 5 hours ago -
What is the distance run by a runner 50m/hr and
60m/hr?
asked 7 hours ago -
Write a descendant selector rule that affects the <em>
element that is contained within the
<p>...
asked 7 hours ago