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NEED HELP WITH THE LAST 2 PLS
Moles and Molecules A natural product has the molecular...
HOME LTE 10:25 PM * 51%. newton.science.sfu.ca How many moles of C23H2708 molecules are in 199...
HOME LTE 10:25 PM * 51%. newton.science.sfu.ca How many moles of C23H2708 molecules are in 199 mg of this compound? 4.61x10-4 1pts You are correct. Your receipt no. is 159-31036) PreviousTries What is the mass of 0.180 mol of this compound? 77.7 g 1pts You are correct. Your receipt no. is 159-5847 How many hydrogen atoms are in 3.65 pg of this compound? 1.38x104-35 1pts Submit Answer Incorrect. Tries 1/5 Previous Tries What is the mass of 3.42x1o8 molecules of...
can someone plz help solve the last one with steps :) M, a solid cylinder (M-2.39...
can
someone plz help solve the last one with steps :)
M, a solid cylinder (M-2.39 kg, R-0.131 m) pivots on a thin, fixed, frictionless bearing. A string wrapped around the cylinder pulls dowmward with a force F which equals the weight of a 0.850 ka mass, 1.e.. F 8.338N. Cálculate the angular acceleration of the cylinder M 5.33x101 rad/s 2 You are correct. Your receipt no, is 154-486 0 Previosus Tries If instead of the force F an actual...
HELP WITH THE LAST ONE THE ANGLE PLS Problem 1 A train is travelling east along...
HELP WITH THE LAST ONE THE
ANGLE PLS
Problem 1 A train is travelling east along a straight run of track at 61.0 km/hr. Inside, two siblings 2.20 m apart are playing catch directly across the aisle. The kid wearing a P.J.Harvey T-shirt throws the ball horizontally north. The ball crosses the train and is caught 0.90 s later by her little brother. (lgnoe any effects of gravity or friction) Find the magnitude of the ball's velocity from the little...
i still need help on the last question. i tried equations but i keep getting it...
i still need help on the last question. i tried
equations but i keep getting it wrong. thank you
i believe it's moles over volume and the answer should
be a percentage
Print Info The chemical method of analysis in determination of the blood alcohol content (%BAC) is: K2Cr207 + H2SO4 + C2H5OH Cr2(SO4)3 + K2SO4 + CH3COOH + H20 What are the stoichiometric coefficients for the reaction above? (please enter the coefficients without spaces and with a coma between...
PLEASE HELP WITH THE LAST TWO PARTS OF THIS QUESTION: Particle X has a speed of...
PLEASE HELP WITH THE LAST TWO PARTS OF THIS QUESTION:
Particle X has a speed of 0.830 c and
a momentum of 4.73×10-19 kgm/s. What is the mass of the
particle?
1.060×10-27 kg
You are
correct.
Your receipt no. is 159-9293
Previous Tries
What is the rest energy of the particle?
9.540×10-11 J
You are
correct.
Your receipt no. is 159-513
Previous Tries
What is the kinetic energy of the particle?
What is the total energy of the particle?
Hint:...
both please How many moles of helium are in the tank? Express your answer using three...
both please
How many moles of helium are in the tank? Express your answer using three significant figures. Constants A 12.0 L tank contains 4.46x104 kg of helium at 19.0 °C. The molar mass of helium is 4.00 g/mol. You may want to review (Pages 585-590) For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Volume n-61.25 mol SubmitP Previous Answers Reguest Ans X Incorrect, Try Again; 8 attempts remaining: no points deducted...
Please help with 1, 3, and 4 :) A. ΔHsolution of NaOH(s) Phase Change: Mass of...
Please help with 1, 3, and 4 :)
A. ΔHsolution of NaOH(s) Phase
Change:
Mass of NaOH: 1.81 g
ΔT for reaction A : 6 °C
B. ΔHsolution for neutralization of
HCl(aq) and NaOH(aq):
Volume of HCl: .05 L
Volume of NaOH: .05 L
Volume total: .10 L
Molarity of HCl: 2.08 M
Molarity of NaOH: 2.08 M
ΔT for reaction B: 12°C
C. ΔH for Reaction of HCl(aq) and
NaOH(s):
Volume of HCl: .055 L
Volume of water: .045...
i added a,b,c just incase you need it i just need help with d-f A student...
i added a,b,c just incase you need it
i just need help with d-f
A student prepared 7.2 g of Co,(NH3),Cl . She then analyzed the compound to find the values of x, y, and z. In the gravimetric determination of chloride, she weighed out a 0.2988 g sample of the product compound and reacted it with AgNO3. The following data were obtained: Mass of crucible plus AgCl 19.0020 g Mass of crucible 18.4628 g a. Calculate the mass of...
Consider a molecule with the formula C3H1106N13. How many moles of hydrogen atoms are there if...
Consider a molecule with the formula C3H1106N13. How many moles of hydrogen atoms are there if you have 7 moles of the molecule? Consider the following generic balanced reaction equation: 5A + 3B 22C If 3.3 moles of A react completely, how many moles of C will be produced? How many grams are the in 40 moles of a compound with a molar mass of 58.2 grams per mole (g/mol)? How many moles are in 176.4 grams of a compound...
ercent Composition, Empirical and Section 3 - Calculations (Moles, Percent Composition, Emp Molecular Formulas) In order...
ercent Composition, Empirical and Section 3 - Calculations (Moles, Percent Composition, Emp Molecular Formulas) In order to earn full credit, you must show your work clearly, include units significant figures 1. (pts) You are given 3.50g of TNI, CHN Tou are given 3.50g of TNT. C-HSN:0. Use this starting amount to determine the quantities requested below. k clearly, include units and use reasonable a) Determine the molar mass of TNT: g/mol (no work necessary for this one). b) Determine the...
HOME LTE 10:25 PM * 51%. newton.science.sfu.ca How many moles of C23H2708 molecules are in 199 mg of this compound? 4.61x10-4 1pts You are correct. Your receipt no. is 159-31036) PreviousTries What is the mass of 0.180 mol of this compound? 77.7 g 1pts You are correct. Your receipt no. is 159-5847 How many hydrogen atoms are in 3.65 pg of this compound? 1.38x104-35 1pts Submit Answer Incorrect. Tries 1/5 Previous Tries What is the mass of 3.42x1o8 molecules of...
can
someone plz help solve the last one with steps :)
M, a solid cylinder (M-2.39 kg, R-0.131 m) pivots on a thin, fixed, frictionless bearing. A string wrapped around the cylinder pulls dowmward with a force F which equals the weight of a 0.850 ka mass, 1.e.. F 8.338N. Cálculate the angular acceleration of the cylinder M 5.33x101 rad/s 2 You are correct. Your receipt no, is 154-486 0 Previosus Tries If instead of the force F an actual...
HELP WITH THE LAST ONE THE
ANGLE PLS
Problem 1 A train is travelling east along a straight run of track at 61.0 km/hr. Inside, two siblings 2.20 m apart are playing catch directly across the aisle. The kid wearing a P.J.Harvey T-shirt throws the ball horizontally north. The ball crosses the train and is caught 0.90 s later by her little brother. (lgnoe any effects of gravity or friction) Find the magnitude of the ball's velocity from the little...
i still need help on the last question. i tried
equations but i keep getting it wrong. thank you
i believe it's moles over volume and the answer should
be a percentage
Print Info The chemical method of analysis in determination of the blood alcohol content (%BAC) is: K2Cr207 + H2SO4 + C2H5OH Cr2(SO4)3 + K2SO4 + CH3COOH + H20 What are the stoichiometric coefficients for the reaction above? (please enter the coefficients without spaces and with a coma between...
PLEASE HELP WITH THE LAST TWO PARTS OF THIS QUESTION:
Particle X has a speed of 0.830 c and
a momentum of 4.73×10-19 kgm/s. What is the mass of the
particle?
1.060×10-27 kg
You are
correct.
Your receipt no. is 159-9293
Previous Tries
What is the rest energy of the particle?
9.540×10-11 J
You are
correct.
Your receipt no. is 159-513
Previous Tries
What is the kinetic energy of the particle?
What is the total energy of the particle?
Hint:...
both please
How many moles of helium are in the tank? Express your answer using three significant figures. Constants A 12.0 L tank contains 4.46x104 kg of helium at 19.0 °C. The molar mass of helium is 4.00 g/mol. You may want to review (Pages 585-590) For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Volume n-61.25 mol SubmitP Previous Answers Reguest Ans X Incorrect, Try Again; 8 attempts remaining: no points deducted...
Please help with 1, 3, and 4 :)
A. ΔHsolution of NaOH(s) Phase
Change:
Mass of NaOH: 1.81 g
ΔT for reaction A : 6 °C
B. ΔHsolution for neutralization of
HCl(aq) and NaOH(aq):
Volume of HCl: .05 L
Volume of NaOH: .05 L
Volume total: .10 L
Molarity of HCl: 2.08 M
Molarity of NaOH: 2.08 M
ΔT for reaction B: 12°C
C. ΔH for Reaction of HCl(aq) and
NaOH(s):
Volume of HCl: .055 L
Volume of water: .045...
i added a,b,c just incase you need it
i just need help with d-f
A student prepared 7.2 g of Co,(NH3),Cl . She then analyzed the compound to find the values of x, y, and z. In the gravimetric determination of chloride, she weighed out a 0.2988 g sample of the product compound and reacted it with AgNO3. The following data were obtained: Mass of crucible plus AgCl 19.0020 g Mass of crucible 18.4628 g a. Calculate the mass of...
Consider a molecule with the formula C3H1106N13. How many moles of hydrogen atoms are there if you have 7 moles of the molecule? Consider the following generic balanced reaction equation: 5A + 3B 22C If 3.3 moles of A react completely, how many moles of C will be produced? How many grams are the in 40 moles of a compound with a molar mass of 58.2 grams per mole (g/mol)? How many moles are in 176.4 grams of a compound...
ercent Composition, Empirical and Section 3 - Calculations (Moles, Percent Composition, Emp Molecular Formulas) In order to earn full credit, you must show your work clearly, include units significant figures 1. (pts) You are given 3.50g of TNI, CHN Tou are given 3.50g of TNT. C-HSN:0. Use this starting amount to determine the quantities requested below. k clearly, include units and use reasonable a) Determine the molar mass of TNT: g/mol (no work necessary for this one). b) Determine the...
Most questions answered within 3 hours.
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Suppose you have two tables: Table
Product:
PROD_ID
PROD_NAME
PROD_PRICE
PROD_PROD_DATE
PROD_VENDOR
1101
Table
100
1-Jan-18...
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