J.R. S.

I originally attempted to solve this problem (as shown below), but it is not right. How can I correctly calculate the boiling point?My attempt:The normal boiling point for ethanol is 78.4° C and... more

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Chemistry

11/18/18

At 1 atm, how much energy is required to heat 51.0 g of H2O(s) at –12.0 °C to H2O(g) at 119.0 °C?

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Chemistry

11/17/18

A sample of methane gas occupies 4.60 L of space at 21.0 ℃. If the pressure remains constant, at what temperature will the gas occupy 2.30 L of space

I want to know the formula to doing it thank you very much

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Physical Chemistry Weak Acid

11/17/18

To what volume one litre of 0.6 molar acetic acid must be diluted in order to double its pH?Ka=1.8×10^-5

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Time Distance Speed

11/17/18

I need help with HW

Isabelle is trying to predict the time required to ride her bike to the nearby beach. She knows that the distance is 45 km and, from other trips, that she can usually average about 20 km/h. Predict... more

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General Chemistry Electrochemistry

11/17/18

Electrochemistry: How much zinc is consumed and how much copper is deposited if a current of 1.0 A flows for 1.0 hour?

How much zinc is consumed and how much copper is deposited if a current of 1.0 A flows for 1.0 hour?

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Chemistry

11/16/18

Look in the description for the answer please

4. What are the first two quantum numbers for the electrons located in subshell 4d?5. What are the first three quantum numbers for the electrons located in subshell 2s?6. How many... more

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Chemistry

11/16/18

Look in the description for the answer please

4. What are the first two quantum numbers for the electrons located in subshell 4d?5. What are the first three quantum numbers for the electrons located in subshell 2s?6. How many... more

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Math

11/16/18

A recipe calls for one half cup of ingredient A for every 1 and two fifths cups of ingredient B. You use 4 cups of ingredient A. How many cups of ingredient B do you need?

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Cellular Respiration

11/16/18

What is the primary fuel for cellular respiration?

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Science

11/16/18

Atoms on an object

if you remove all the atoms from a table what remains?

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Chemistry Ap Chem Ap Chemistry

11/16/18

Calculate the percent ionization of 0.125 M lactic acid in a solution containing 8.5×10−3 M sodium lactate.

Express your answer using two significant figures.

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Math

11/14/18

A swimming pool is being filled at the rate of 15pints per minute. How many gallons per hour?

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Chemistry

11/14/18

Chemistry help Acid and Bases:

A solution is prepared by adding 1.00 × 10-13 mole of strong base NaOH to 1.00 L of aqueous solution. The pH is:A solution is prepared by adding 1.00 × 10-2 mole of strong base NaOH to 1.00 L of... more

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Ratio

11/13/18

Share 9000 oranges between two friends in the ratio 1:2

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Ionization

11/13/18

Calculating pOH value

What is the pOH value of a 0.01 M 2-methylpropanoicacid solution? (Ka= 1.6 .10–5)

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Ionization

11/13/18

Ionization reaction

If 0.1 mole of HCl is added to a 1 liter of solution of 0.1M CH3COO–, how many mole of H+ions will be there in the solution? (ignore volume change after mixing)

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Chemistry

11/13/18

Urgent quick question for chemistry

Which of the following reagents cannot be used to differentiate sodium hydroxide solution from sodium chloride solution?A Aqueous iron(III) nitrateB Aqueous copper(II) nitrateC Aqueous lithium... more

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What is nine and one third minus four and one sixth?

What’s the formula for hypsulfite

Determine the volume of stock solution needed and the volume of diluent

A farmer has some ice cream that is 21% butter fat and some which is 15% butter fat. How much of each must be mixed with to produce 60 gallons of of 19% butterfat?

Which gas is faster?

Preparation of amines

why is there a difference between the actual yield and the theoretical yield?

Calculate the boiling point of a 8.25 m aqueous solution of ethanol.

At 1 atm, how much energy is required to heat 51.0 g of H2O(s) at –12.0 °C to H2O(g) at 119.0 °C?

A sample of methane gas occupies 4.60 L of space at 21.0 ℃. If the pressure remains constant, at what temperature will the gas occupy 2.30 L of space

To what volume one litre of 0.6 molar acetic acid must be diluted in order to double its pH?Ka=1.8×10^-5

I need help with HW

Electrochemistry: How much zinc is consumed and how much copper is deposited if a current of 1.0 A flows for 1.0 hour?

Look in the description for the answer please

Look in the description for the answer please

A recipe calls for one half cup of ingredient A for every 1 and two fifths cups of ingredient B. You use 4 cups of ingredient A. How many cups of ingredient B do you need?

What is the primary fuel for cellular respiration?

Atoms on an object

Calculate the percent ionization of 0.125 M lactic acid in a solution containing 8.5×10−3 M sodium lactate.

A swimming pool is being filled at the rate of 15pints per minute. How many gallons per hour?

Chemistry help Acid and Bases:

Share 9000 oranges between two friends in the ratio 1:2

Calculating pOH value

Ionization reaction

Urgent quick question for chemistry

Still looking for help? Get the right answer, fast.

OR

J.R. S.

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Emmersion

What is nine and one third minus four and one sixth?

What’s the formula for hypsulfite

Determine the volume of stock solution needed and the volume of diluent

A farmer has some ice cream that is 21% butter fat and some which is 15% butter fat. How much of each must be mixed with to produce 60 gallons of of 19% butterfat?

Which gas is faster?

Preparation of amines

why is there a difference between the actual yield and the theoretical yield?

Calculate the boiling point of a 8.25 m aqueous solution of ethanol.

At 1 atm, how much energy is required to heat 51.0 g of H2O(s) at –12.0 °C to H2O(g) at 119.0 °C?

A sample of methane gas occupies 4.60 L of space at 21.0 ℃. If the pressure remains constant, at what temperature will the gas occupy 2.30 L of space

To what volume one litre of 0.6 molar acetic acid must be diluted in order to double its pH?Ka=1.8×10^-5

I need help with HW

Electrochemistry: How much zinc is consumed and how much copper is deposited if a current of 1.0 A flows for 1.0 hour?

Look in the description for the answer please

Look in the description for the answer please

A recipe calls for one half cup of ingredient A for every 1 and two fifths cups of ingredient B. You use 4 cups of ingredient A. How many cups of ingredient B do you​ need?

What is the primary fuel for cellular respiration?

Atoms on an object

Calculate the percent ionization of 0.125 M lactic acid in a solution containing 8.5×10−3 M sodium lactate.

A swimming pool is being filled at the rate of 15pints per minute. How many gallons per hour?

Chemistry help Acid and Bases:

Share 9000 oranges between two friends in the ratio 1:2

Calculating pOH value

Ionization reaction

Urgent quick question for chemistry

Still looking for help? Get the right answer, fast.

OR

J.R. S.

A recipe calls for one half cup of ingredient A for every 1 and two fifths cups of ingredient B. You use 4 cups of ingredient A. How many cups of ingredient B do you need?