Newest chemistry Questions | Wyzant Ask An Expert

Chemistry

1h

The density of an object that has a mass of 2.50 g and occupies a volume of 1.20 mL equals

Follows • 1

Answers •0

Chemistry

2h

the density of nitrogen gas is 1.17g/L what is the density of nitrogen expressed in micrograms / deciliter (ug/dL)

Follows • 1

Answers •0

Chemistry

3h

if you get 8 hours of sleep at night how many nanoseconds is that

Follows • 1

Answers •1

Chemistry

6h

Chemistry One limiting reagents

If 25.0 grams of nitrogen reacts with 4.50 of hydrogen, 21.2 grams of ammonia are actually produced. Calculate the limiting reagent and theoretical yield. can someone explain this question to me... more

Follows • 0

Answers •1

Chemistry

8h

What is the most stable monatomic ion formed from caesium?

Follows • 1

Answers •1

Chemistry

1d

solving limiting reactant problems in solution

Suppose 3.50g of zinc bromide is dissolved in 300.mL of a 65.0mM aqueous solution of potassium carbonate.Calculate the final molarity of bromide anion in the solution. You can assume the volume of... more

Follows • 1

Answers •1

Chemistry

1d

what volume in mL will 320 grams of oxygen gas occupy at 25 degree celsius and 79 kPa and a 7 atm of pressure, if it occupies 0.4 liters at STP

Follows • 1

Answers •1

Chemistry

1d

Finding the molecular formula through molar mass and percenteges

Compound has a molar mass of 283.89 g.mol^-1 and the following composition:Phosphorus: 43.64%Oxygen: 56.36%Write the molecular formula of X.

Follows • 1

Answers •1

Chemistry

1d

Finding the molecular formula through molar mass

Compound X has a molar mass of 316.29·gmol−1 and the following composition:Phosporus: 39.17%Sulfur:60.83%Write the molcecular formula of X.

Follows • 1

Answers •1

Chemistry

1d

The aluminum in a package containing 61 of kitchen foil weighs approximately 19 ounces. Aluminum has a density of 2.70 . What is the approximate thickness of the aluminum foil in millimeters? (

Follows • 1

Answers •1

Chemistry

3d

Based on what you have learned about acids, bases and salts, how will your interaction with chemical products change?

Follows • 1

Answers •1

Chemistry

3d

Why is the self-ionization of water so important to the study of acids and bases? Explain

Follows • 1

Answers •1

Chemistry

3d

the density of water is 1 gram per cubic centimeter. What is the density of water in kilograms per cubic centimeter?

the density of water is 1 gram per cubic centimeter. What is the density of water in kilograms per cubic centimeter? Help pls

Follows • 1

Answers •1

Chemistry

3d

Peoples senses can help them determine the physical properties of a material

Follows • 1

Answers •1

Chemistry

4d

How much heat is required, in joules, to raise the temperature of 15.0 g of water from 50 °C to 100 °C?

Follows • 1

Answers •1

Chemistry

4d

how long will it take for 100 grams of a substance with a half-life of 50 grams A) 1 year B) 2 years C) 1 half of a year D) 2 1/2 years

Follows • 1

Answers •1

Chemistry

4d

Equilibrium Constant K Problem

If the combustion of C4H10(g) has K200°C = 2.5x104, find K200°C for the formation of C4H10(g) from its elements at these conditions

Follows • 1

Answers •1

Chemistry

4d

What would be the final temperature of the system if 27.4 g of lead at 120 ◦C is dropped into 22.4 g of water at 12.4 ◦C in an insulated container? The specific heat of lead is 0.128 J/g ◦C.

Follows • 1

Answers •1

Chemistry

5d

HELP PLEASE I HAVE AN EXAM TOMORROW!!!

A foul-smelling gas produced by the reaction of HCl with Na2Swas collected, and a 1.00 L sample was found to have a mass of 1.52 g at STP.Part AWhat is the molecular mass of the gas?

Follows • 2

Answers •1

Chemistry

5d

Chemistry help!

Helium has a higher Ionization Energy than any other element. What is the cause of this seeing as the nuclear effective charge is only 2? Please explain using the nuclear effective charge why... more

Follows • 1

Answers •1

Chemistry

5d

How many mL of 0.15 M NaOH will be required to completely titrate 10.0 mL of 0.200 M H₂SO₄?

Follows • 1

Answers •1

Chemistry

6d

As a sample of water turns to ice ?? Please help!

Q. As a sample of water turns to ice? A. New molecules are formedB.the mass of the sample is increased C.The arrangement of molecules changeD.Energy is absorbed by the molecules

Follows • 1

Answers •1

Chemistry

6d

What type of substances are the atoms held together by metallic bonding?

Follows • 1

Answers •1

Chemistry

6d

what is a characteristic shared by ionic compounds and molecules in regards to formulas?

Follows • 1

Answers •1

Chemistry

6d

What type of compounds have the least ionic character?

Follows • 1

Answers •1

chemistry

The density of an object that has a mass of 2.50 g and occupies a volume of 1.20 mL equals

the density of nitrogen gas is 1.17g/L what is the density of nitrogen expressed in micrograms / deciliter (ug/dL)

if you get 8 hours of sleep at night how many nanoseconds is that

Chemistry One limiting reagents

What is the most stable monatomic ion formed from caesium?

solving limiting reactant problems in solution

what volume in mL will 320 grams of oxygen gas occupy at 25 degree celsius and 79 kPa and a 7 atm of pressure, if it occupies 0.4 liters at STP

Finding the molecular formula through molar mass and percenteges

Finding the molecular formula through molar mass

The aluminum in a package containing 61 of kitchen foil weighs approximately 19 ounces. Aluminum has a density of 2.70 . What is the approximate thickness of the aluminum foil in millimeters? (

Based on what you have learned about acids, bases and salts, how will your interaction with chemical products change?

Why is the self-ionization of water so important to the study of acids and bases? Explain

the density of water is 1 gram per cubic centimeter. What is the density of water in kilograms per cubic centimeter?

Peoples senses can help them determine the physical properties of a material

How much heat is required, in joules, to raise the temperature of 15.0 g of water from 50 °C to 100 °C?

how long will it take for 100 grams of a substance with a half-life of 50 grams A) 1 year B) 2 years C) 1 half of a year D) 2 1/2 years

Equilibrium Constant K Problem

What would be the final temperature of the system if 27.4 g of lead at 120 ◦C is dropped into 22.4 g of water at 12.4 ◦C in an insulated container? The specific heat of lead is 0.128 J/g ◦C.

HELP PLEASE I HAVE AN EXAM TOMORROW!!!

Chemistry help!

How many mL of 0.15 M NaOH will be required to completely titrate 10.0 mL of 0.200 M H₂SO₄?

As a sample of water turns to ice ?? Please help!

What type of substances are the atoms held together by metallic bonding?

what is a characteristic shared by ionic compounds and molecules in regards to formulas?

What type of compounds have the least ionic character?

Still have a question? Ask your own and get expert help!

RELATED TOPICS

RELATED QUESTIONS TO:

why does covalent bonds determine the polarity of water?

If a temperature scale were based off benzene.

How much copper wire can be made from copper ore?

RECOMMENDED TUTORS