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Chemistry

05/13/23

What is the pressure of the sample?

A student has a sample of 1.66 moles of fluorine gas that is contained in a 27.7 L container at 297 K. What is the pressure of the sample? The ideal gas constant is 0.0821 L*atm/mol*K. Please round... more

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Chemistry

05/12/23

what mass of H2O can be produced?

Given the equation below, 12.35 grams of H2SO4, and excess Ca(OH)2, what mass of H2O can be produced? Round your answer to two digits after the decimal point.H2SO4 + Ca(OH)2 à 2 H2O + CaSO4

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Chemistry

05/12/23

How do you solve this problem? The ambient temperature is 85.0°F and the humidity of the surrounding air is reported to be 54.0%

The ambient temperature is 85.0°F and the humidity of the surrounding air is reported to be 54.0%. Using the Clausius-Clapeyron equation and the boiling point of water as 100.0°C at 760 torr,... more

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Chemistry

05/12/23

What is the pressure of the sample?

A student has a sample of 1.58 moles of fluorine gas that is contained in a 25.3 L container at 274 K. What is the pressure of the sample? The ideal gas constant is 0.0821 L*atm/mol*K. Round your... more

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Chemistry

05/12/23

Which of the following substances would undergo dissociation when placed into a polar solvent such as water?

Which of the following substances would undergo dissociation when placed into a polar solvent such as water? options H2O2 CO2 C6H12O6 CaCl2

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Chemistry

05/12/23

What is the pressure of the sample?

A student has a sample of 1.58 moles of fluorine gas that is contained in a 25.3 L container at 274 K. What is the pressure of the sample? The ideal gas constant is 0.0821 L*atm/mol*K. Round your... more

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Answers •1

Chemistry

05/12/23

How many calories of heat were released by the cracker?

Rachel burns a 53 gram cracker under a soda can filled with 78.3 grams of water. She took the temperature of the water before she began -- it was 11.8 degrees Celsius. After the cracker was done... more

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Chemistry

05/12/23

what mass of H2O can be produced?

Given the equation below, 12.35 grams of H2SO4, and excess Ca(OH)2, what mass of H2O can be produced? Round your answer to two digits after the decimal point.H2SO4 + Ca(OH)2 à 2 H2O + CaSO4

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Chemistry

05/12/23

What is the specific heat of the metal?

Lana is using a calorimeter to determine the specific heat of a metallic sample. She measures out 168.6 grams of her metal and heats it to 87.1 degrees Celsius. Then, she puts the sample into a... more

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Chemistry

05/12/23

Chemistry:; How many moles?

How many moles of Zn(NO3)2 are produced from 23.87 grams of AgNO3 and excess Zn? Round your answer to three digits after the decimal point.Zn + 2 AgNO3 à 2 Ag + Zn(NO3)2

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Chemistry

05/12/23

I need help asap

A 15.75 g piece of iron is heated from 125°C to 935°C. Calculate the heat energy transferred.

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Chemistry

05/11/23

Chemistry Molarity question (In description due to unable to type in the title)

What volume of 4.2 M Ca(OH)2 is needed to make 500mL of 1.5M solution

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Chemistry

05/11/23

50 grams NaCl are dissolved in water to make a 1.5 M solution. What is the volume of the solution in mL.

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Chemistry

05/11/23

How many grams of LiBr are in 450mL of a 3.2 M solution

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Chemistry

05/11/23

0.25 moles of KOH are dissolved into 600mL of solution. What is the concentration?

Homework help.

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Chemistry Math Physics Differential Equations

05/11/23

particle on a ring, quantum mechanics

A)Explain the reason why Ψ(x) = Acos(πx/L) is not able to describe a particle of mass m in a ring of length L. B) On the other hand, explain why Ψ(x) = Acos^2(πx/L) is.C) When momentum is... more

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Chemistry Math

05/11/23

Dilution Calculation

What volume of 2.0M HCl is needed to prepare 0.50L of a 0.75M solution?

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Chemistry Biochemistry

05/11/23

Calorimetry Chemistry

In a calorimeter, a random amount of CO, is mixed into 80.0 g of H,0 to create carbonated water. The CO, had an initial temperature of 56,6*C and the water was originally at 24.6 *C. After the... more

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Chemistry

05/11/23

For each of the scenarios, identify the order with respect to the reactant, A. A⟶products

For each of the scenarios, identify the order with respect to the reactant, A. A⟶productsA three‑fold increase in the initial concentration of A leads to a 1.73‑fold increase in the initial... more

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Chemistry

05/11/23

A particular reactant decomposes with a half‑life of 137s when its initial concentration is 0.289 M. The same reactant decomposes with a half‑life of 233s when its initial concentration is 0.170 M.

A particular reactant decomposes with a half‑life of 137s when its initial concentration is 0.289 M. The same reactant decomposes with a half‑life of 233s when its initial concentration is 0.170... more

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Chemistry

05/10/23

What volume of 3 M Ca(OH)₂ is needed to make 125 mL of 0.2 M solution

Need help on a hw assigment

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Chemistry

05/10/23

20 grams NaCl are dissolved in water to make a 0.85 M solution. What is the volume of the solution in mL

Need help on a homework assigment

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Chemistry

05/10/23

How many grams of LiBr are in 125 mL of a 1.3 M solution

Need help on a homework question

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Chemistry

05/10/23

0.75 moles of KOH are dissolved into 700mL of solution. What is the concentration.

Need help on a homework assignment

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Chemistry

05/10/23

Chemistry 11 grade

In the reaction 75/33As+ X-- 78/35 Br+1/0 n X represent ? a triton a beta particle a proton an alpha proticle

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What is the pressure of the sample?

what mass of H2O can be produced?

How do you solve this problem? The ambient temperature is 85.0°F and the humidity of the surrounding air is reported to be 54.0%

What is the pressure of the sample?

Which of the following substances would undergo dissociation when placed into a polar solvent such as water?

What is the pressure of the sample?

How many calories of heat were released by the cracker?

what mass of H2O can be produced?

What is the specific heat of the metal?

Chemistry:; How many moles?

I need help asap

Chemistry Molarity question (In description due to unable to type in the title)

50 grams NaCl are dissolved in water to make a 1.5 M solution. What is the volume of the solution in mL.

How many grams of LiBr are in 450mL of a 3.2 M solution

0.25 moles of KOH are dissolved into 600mL of solution. What is the concentration?

particle on a ring, quantum mechanics

Dilution Calculation

Calorimetry Chemistry

For each of the scenarios, identify the order with respect to the reactant, A. A⟶products

A particular reactant decomposes with a half‑life of 137s when its initial concentration is 0.289 M. The same reactant decomposes with a half‑life of 233s when its initial concentration is 0.170 M.

What volume of 3 M Ca(OH)₂ is needed to make 125 mL of 0.2 M solution

20 grams NaCl are dissolved in water to make a 0.85 M solution. What is the volume of the solution in mL

How many grams of LiBr are in 125 mL of a 1.3 M solution

0.75 moles of KOH are dissolved into 700mL of solution. What is the concentration.

Chemistry 11 grade

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