J.R. S.

02/09/19

1.21g H2 is allowed to react with 9.51g N2, producing 2.32g NH3. what is the theoretical yield for the reaction?

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02/09/19

A cylinder with a frictionless movable piston contains an ideal gas at 400K. After the temperature of the cylinder is increased to 800K at constant barometric pressure

A cylinder with a frictionless movable piston contains an ideal gas at 400K. After the temperature of the cylinder is increased to 800K at constant barometric pressure, which of the following will... more

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Chemistry

02/09/19

How many liters of oxygen are made at 25.0 degrees Celsius and 1.245 atm when 0.1449 miles of H2O2 decomposes according to the following equation 2 H2O2 > 2H2O + O2

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Chemistry

02/09/19

What is the volume of 100.00 grams of ammonia ( NH3) st STP?

Help help help I’m horrible at this stuff mayyyn

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Chemistry

02/09/19

HOw many moles of water vapor aren’t present in a 545 mL container at 24.5 Celsius and 790 torr?

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Chemistry

02/09/19

A volume of15.6 litersground level, tem26Celsius and the pressure is 1.01 atm. It rises to an altitude where the temp is -10.3 Celsius, and the pressure is 0.10 atm. What is the volume of the balloon?

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Chemistry

02/09/19

A flexible container starts with a volume of 19.2 liters at a temperature of 27.0 Celsius. If the pressure doesn’t change, what is the volume of the temperature rises to 120.0 Celsius?

NEed help fast please I’m sucky at chemistry help help help

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Chemistry

02/09/19

A balloon contains 149.6 mL of gas at a pressure of 567tor. If the temperature doesnt change, what is the volume of the gas at a pressure of 981 torr?

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Chemistry Chem

02/09/19

Nitrogen boils into a gas at -195.8 Celsius. What temperature is this in Kelvin?

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Math Chemistry

02/09/19

Radiocarbon dating

A support pole for an ancient structure is found to have one-seventh of the carbon-14 of a modern, living tree. How long ago did the tree used to make the support pole die? Give your answer to the... more

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Chemistry

02/08/19

FeCl₃ has a van't Hoff factor of 3.4. What is the freezing point of an aqueous solution made with 0.81 m FeCl₃? (Kf for water is 1.86 °C/m)

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Chemistry

02/08/19

What is the molar mass of a protein, if a solution of 0.12 g of the protein in 0.040 L of solution has an osmotic pressure of 0.76 torr at 35

What is the molar mass of a protein, if a solution of 0.12 g of the protein in 0.040 L of solution has an osmotic pressure of 0.76 torr at 35 CUse R=0.08206L atmmol K in your calculation

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Algebra 1 Algebra

02/08/19

I don't understand the problem

When 3.3 is add to 8 times a number , the results is 68.9. Find the number.

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Elementary Math Grade School

02/08/19

if i have a 100 in a class what will happen if i get a 0 on a project, what will my grade be

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Science Biology Chemistry

02/08/19

What type of bond forms between carbohydrate monomers?

What type of bond forms between carbohydrate monomers? a. Hydrogen bondb. Glycosidic linkagec. Ester bondd. Ionic bond

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Chemistry

02/08/19

moles in chemistry

after eating a plate full of super-hot wongs, Fustin needed 1.50g of Mylanta (Milk of Magnesia) in a hurry. How many molecules of Mylanta did he need to settle his stomach? The molecular formula of... more

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Chemistry Chem

02/08/19

A sample of 0.400 L Ne initially at 1.50 atm and 240.ºC is mixed with a 0.150 L sample of O2 initially at 550. torr and 130.ºC in a 500. mL flask held at 25.0ºC. Find the total pressure in the flask.

A sample of 0.400 L Ne initially at 1.50 atm and 240.ºC is mixed with a 0.150 L sample of O2 initially at 550. torr and 130.ºC in a 500. mL flask held at 25.0ºC. Find the total pressure in the... more

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Organic Chemistry

02/08/19

What is the balanced chemical equation between sodium thiosulfate and sodium hypochlorite?

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Chemistry Chem

02/08/19

A sample of ammonia gas is completely decomposed to nitrogen and hydrogen gases. If the total pressure is 866 mmHg, calculate the partial pressure of nitrogen. 2NH3(g) --> N2(g) + 3H2(g)

A sample of ammonia gas is completely decomposed to nitrogen and hydrogen gases. If the total pressure is 866 mmHg, calculate the partial pressure of nitrogen. 2NH3(g) --> N2(g) + 3H2(g)Please... more

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Chemistry Chem

02/08/19

A 425-mL sample of hydrogen is collected above water at 35°C and 763 torr. Find the volume of the hydrogen sample when

A 425-mL sample of hydrogen is collected above water at 35°C and 763 torr. Find the volume of the hydrogen sample when the temperature falls to 23°C, assuming the barometric pressure does not... more

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Physics Maths

02/08/19

Addition of Mass and conversion to grams

We have the following masses: 20,000,000 kg; 5,000 dg; 650mg. What is the total mass in grams?

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Chemistry

02/07/19

At 50∘C, liquid A has a vapor pressure of 237

At 50∘C, liquid A has a vapor pressure of 237 torr and liquid B has a vapor pressure of 341 torr. If 5.50 moles of liquid A and 6.00 moles of liquid B are combined to form an ideal solution, what... more

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Pharmacology

02/07/19

Safe dose range for each 8 hour dose?

The recommended dosage of amoxicillin is 20 to 40 mg/kg/day divided in equal doses q8 h. The medication is supplied as 50 mg/mL oral suspension. The child weighs 72 pounds Calculate the safe dose... more

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Chemistry

02/07/19

What will be the freezing point of a solution that contains 60.5g of glucose (C6H12O6) in 555g of water? Use Kf=1.86∘Cm.

What will be the freezing point of a solution that contains 60.5g of glucose (C6H12O6) in 555g of water?Use Kf=1.86∘C/m.

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Chemistry

02/07/19

If the vapor pressure of an aqueous solution containing 6.00 moles of a nonvolatile solute has a vapor pressure of 19.8 torr, and given that the vapor pressure of water at room temperature is 23.7 tor

If the vapor pressure of an aqueous solution containing 6.00 moles of a nonvolatile solute has a vapor pressure of 19.8 torr, and given that the vapor pressure of water at room temperature... more

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1.21g H2 is allowed to react with 9.51g N2, producing 2.32g NH3. what is the theoretical yield for the reaction?

A cylinder with a frictionless movable piston contains an ideal gas at 400K. After the temperature of the cylinder is increased to 800K at constant barometric pressure

How many liters of oxygen are made at 25.0 degrees Celsius and 1.245 atm when 0.1449 miles of H2O2 decomposes according to the following equation 2 H2O2 > 2H2O + O2

What is the volume of 100.00 grams of ammonia ( NH3) st STP?

HOw many moles of water vapor aren’t present in a 545 mL container at 24.5 Celsius and 790 torr?

A volume of15.6 litersground level, tem26Celsius and the pressure is 1.01 atm. It rises to an altitude where the temp is -10.3 Celsius, and the pressure is 0.10 atm. What is the volume of the balloon?

A flexible container starts with a volume of 19.2 liters at a temperature of 27.0 Celsius. If the pressure doesn’t change, what is the volume of the temperature rises to 120.0 Celsius?

A balloon contains 149.6 mL of gas at a pressure of 567tor. If the temperature doesnt change, what is the volume of the gas at a pressure of 981 torr?

Nitrogen boils into a gas at -195.8 Celsius. What temperature is this in Kelvin?

Radiocarbon dating

FeCl₃ has a van't Hoff factor of 3.4. What is the freezing point of an aqueous solution made with 0.81 m FeCl₃? (Kf for water is 1.86 °C/m)

What is the molar mass of a protein, if a solution of 0.12 g of the protein in 0.040 L of solution has an osmotic pressure of 0.76 torr at 35

I don't understand the problem

if i have a 100 in a class what will happen if i get a 0 on a project, what will my grade be

What type of bond forms between carbohydrate monomers?

moles in chemistry

A sample of 0.400 L Ne initially at 1.50 atm and 240.ºC is mixed with a 0.150 L sample of O2 initially at 550. torr and 130.ºC in a 500. mL flask held at 25.0ºC. Find the total pressure in the flask.

What is the balanced chemical equation between sodium thiosulfate and sodium hypochlorite?

A sample of ammonia gas is completely decomposed to nitrogen and hydrogen gases. If the total pressure is 866 mmHg, calculate the partial pressure of nitrogen. 2NH3(g) --> N2(g) + 3H2(g)

A 425-mL sample of hydrogen is collected above water at 35°C and 763 torr. Find the volume of the hydrogen sample when

Addition of Mass and conversion to grams

At 50∘C, liquid A has a vapor pressure of 237

Safe dose range for each 8 hour dose?

What will be the freezing point of a solution that contains 60.5g of glucose (C6H12O6) in 555g of water? Use Kf=1.86∘Cm.

If the vapor pressure of an aqueous solution containing 6.00 moles of a nonvolatile solute has a vapor pressure of 19.8 torr, and given that the vapor pressure of water at room temperature is 23.7 tor

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