It is important to be cautious with flammable substances in the laboratory. What is the easiest...
It is important to be cautious with flammable substances in the laboratory. What is the easiest way to avoid fires in the laboratory?
a)Do not use acids and bases when working with flammable substances.
b) Do not use water when working with flammable substances.
c) Keep heat sources and flammable substances separate.
d)Keep glassware and flammable substances separate.
Homework Answers
The easiest way to avoid a fire is by separating the fuel and the heat source. In a laboratory, where this is of utmost importance prevention is the best option. Hence keeping heat sources separate from flammable substances is the answer.
Add Answer to:
It is important to be cautious with flammable substances in the
laboratory. What is the easiest...
question 2: choice 1- corrosive, flammable, oxidizers choice 2- the skin and lab surfaces, clean glassware,...
question 2: choice 1- corrosive, flammable, oxidizers
choice 2- the skin and lab surfaces, clean glassware,
water
choice 3- immediately, before leaving, Art the end of the
procedure
question 5: choice 1- The indicator changes color, The pH
equals the pKa, moles of acid equals moles of base
choice 2- moles of acid equals moles of base, The indicator
changes color, The pH equals pKa
Question 2 Status: Not yet answered | Points possible: 1.00 Make every effort to avoid...
18. What substance is the flammable chemical in a "metal fire" The oxidized form of the...
18. What substance is the flammable chemical in a "metal
fire"
The oxidized form of the metal
The reduced form of the metal
Hydrogen gas
Superheated water
19. What class of organic lolecules is profuced when an
organic acid anhydride reacts with water?
Ketone
Aldehyde
Carboxylic Acid
Ether
20. Why are very high concentrations of some acids considered
water reactive?
They are able to protonate H3O+ to H4O2+
Very high solvation energies can lead to a violent
reaction
The acids...
Use the References to Reces Important values if needed for this question In the laboratory a "coffee cup" calorimet...
Use the References to Reces Important values if needed for this question In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. Since the cup itself can absorb energy, a separate experiment is needed to determine the heat capacity of the calorimeter. This is known as calibrating the calorimeter and the value determined is called the calorimeter constant....
Use the References to access important values if needed for this question. In the laboratory a...
Use the References to access important values if needed for this question. In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. A chunk of aluminum weighing 18.06 grams and originally at 98.31 °C is dropped into an insulated cup containing 76.85 grams of water at 20.96 °C. The heat capacity of the calorimeter (sometimes referred to as...
The In the laboratory a "coffee cup calorimeter, or constant pressure calorimeter, is frequently used to determi...
The In the laboratory a "coffee cup calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. A student heats 61.44 grams of titanium to 97.72 °C and then drops it into a cup containing 83.69 grams of water at 21.75 °C. She measures the final temperature to be 27.96 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant)...
Use the Kelerences to access important values if needed for this question In the laboratory a...
Use the Kelerences to access important values if needed for this question In the laboratory a student determines the specific heat of a metal as follows: She heats 19.8 grams of magnesium to 97.81 °C and then drops it into a cup containing 77.4 grams of water at 22.42 °C. When thermal equilibrium is reached, she measures the final temperature to be 27.02 °C. Assuming that all of the heat from the metal is transferred to the water, she calculates...
In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine...
In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. Since the cup itself can absorb energy, a separate experiment is needed to determine the heat capacity of the calorimeter. This is known as calibrating the calorimeter and the value determined is called the calorimeter constant. One way to do this is to use a common metal of...
In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine...
In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. Since the cup itself can absorb energy, a separate experiment is needed to determine the heat capacity of the calorimeter. This is known as calibrating the calorimeter and the value determined is called the calorimeter constant. One way to do this is to use a common metal of...
hydrogen bonds b sonpolar covalent bond c. polar covalent bonds E. van der Waals interactions d....
hydrogen bonds b sonpolar covalent bond c. polar covalent bonds E. van der Waals interactions d. ionic bonds 43. The slige What is oegative charge at one end of one water molecule is atracted to the slight positive charge of another water molecule. What s this attraction called? a covalent bond a hydirogem bond c an ionic bond The breaking of bonds between water molecules Water molecules absorb heat from the surface in order to acquire enough energy d a...
In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine...
In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. Since the cup itself can absorb energy, a separate experiment is needed to determine the heat capacity of the calorimeter. This is known as calibrating the calorimeter and the value determined is called the calorimeter constant. One way to do this is to use a common metal of...
question 2: choice 1- corrosive, flammable, oxidizers
choice 2- the skin and lab surfaces, clean glassware,
water
choice 3- immediately, before leaving, Art the end of the
procedure
question 5: choice 1- The indicator changes color, The pH
equals the pKa, moles of acid equals moles of base
choice 2- moles of acid equals moles of base, The indicator
changes color, The pH equals pKa
Question 2 Status: Not yet answered | Points possible: 1.00 Make every effort to avoid...
18. What substance is the flammable chemical in a "metal
fire"
The oxidized form of the metal
The reduced form of the metal
Hydrogen gas
Superheated water
19. What class of organic lolecules is profuced when an
organic acid anhydride reacts with water?
Ketone
Aldehyde
Carboxylic Acid
Ether
20. Why are very high concentrations of some acids considered
water reactive?
They are able to protonate H3O+ to H4O2+
Very high solvation energies can lead to a violent
reaction
The acids...
Use the References to Reces Important values if needed for this question In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. Since the cup itself can absorb energy, a separate experiment is needed to determine the heat capacity of the calorimeter. This is known as calibrating the calorimeter and the value determined is called the calorimeter constant....
The In the laboratory a "coffee cup calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. A student heats 61.44 grams of titanium to 97.72 °C and then drops it into a cup containing 83.69 grams of water at 21.75 °C. She measures the final temperature to be 27.96 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant)...
Use the Kelerences to access important values if needed for this question In the laboratory a student determines the specific heat of a metal as follows: She heats 19.8 grams of magnesium to 97.81 °C and then drops it into a cup containing 77.4 grams of water at 22.42 °C. When thermal equilibrium is reached, she measures the final temperature to be 27.02 °C. Assuming that all of the heat from the metal is transferred to the water, she calculates...
hydrogen bonds b sonpolar covalent bond c. polar covalent bonds E. van der Waals interactions d. ionic bonds 43. The slige What is oegative charge at one end of one water molecule is atracted to the slight positive charge of another water molecule. What s this attraction called? a covalent bond a hydirogem bond c an ionic bond The breaking of bonds between water molecules Water molecules absorb heat from the surface in order to acquire enough energy d a...
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