answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
uysha [10]
2 years ago
10

During the lab, you will have access to a range of acids and bases as well as universal pH indicator paper. Think about how you

can use these tools to develop a color chart for the red cabbage indicator. Then, write a hypothesis using the “if/then” format.
Hypothesis:
Chemistry
2 answers:
kobusy [5.1K]2 years ago
6 0

Answer:

Explanation:bxbxbd

Delicious77 [7]2 years ago
6 0

Answer:

Sample Response (Do not copy and paste this is to learn it from the hypothesis, if you copy and paste 1 you wont learn it and 2 you will get marked for plagerism)

Explanation:

If you can measure the pH of a range of acids and bases using a universal pH indicator, then you can use those values to calibrate a cabbage pH indicator.

You might be interested in
Which is the most important question for deciding if a chemical reaction has occurred?
777dan777 [17]

Answer:

all these are physical properties except release of heat so it's probably heat energy given off

7 0
2 years ago
Read 2 more answers
COCl2(g) decomposes according to the equation above. When pure COCl2(g) is injected into a rigid, previously evacuated flask at
mestny [16]

<u>Answer:</u> The value of K_p for the reaction at 690 K is 0.05

<u>Explanation:</u>

We are given:

Initial pressure of COCl_2 = 1.0 atm

Total pressure at equilibrium = 1.2 atm

The chemical equation for the decomposition of phosgene follows:

                  COCl_2(g)\rightleftharpoons CO(g)+Cl_2(g)

Initial:            1                    -         -

At eqllm:       1-x                 x        x

We are given:

Total pressure at equilibrium = [(1 - x) + x+ x]

So, the equation becomes:

[(1 - x) + x+ x]=1.2\\\\x=0.2atm

The expression for K_p for above equation follows:

K_p=\frac{p_{CO}\times p_{Cl_2}}{p_{COCl_2}}

p_{CO}=0.2atm\\p_{Cl_2}=0.2atm\\p_{COCl_2}=(1-0.2)=0.8atm

Putting values in above equation, we get:

K_p=\frac{0.2\times 0.2}{0.8}\\\\K_p=0.05

Hence, the value of K_p for the reaction at 690 K is 0.05

3 0
2 years ago
A tank containing both hf and hbr gases developed a leak. The ratio of the rate of effusion of hf to the rate of effusion of hbr
Pavlova-9 [17]

Answer:

2.01

Explanation:

The effusion is the passage of the molecules by a small hole by a difference of pressure. By Graham's Law, the rate of the effusion is inversely proportional to the square of the molar mass of the compound. Thus,

rateHF/rateHBr = √MHBr /√MHF

MHBr = 81 g/mol

MHF = 20 g/mol

rateHF/rateHBr = √81/√20

rateHF/rateHBr = 2.01

4 0
2 years ago
A metal rod with a length of 4.66 cm was measured using four different devices. Which of the following measurements is the most
iogann1982 [59]
4.658. Accuracy refers to how close the experimental value is to the actual value. Precision is how close a set of data is to one another.
3 0
2 years ago
Read 2 more answers
For which property has Marvin forgotten to use an SI unit of measurement?
Nuetrik [128]
The answer to your question would be _B High Temp
8 0
2 years ago
Read 2 more answers
Other questions:
  • What quantum numbers specify these subshells? 2S, 6P, and 3D. (The answer is n= and L=)
    7·1 answer
  • Enter the chemical equation 2H+(aq)+S2−(aq)→H2S(g). Express your answer as a chemical equation.
    5·2 answers
  • Select all of the correct statements pertaining to the first and second ionization energies of different elements. check all tha
    12·2 answers
  • A solution is made by dissolving 5.65 g of an unknown molecular compound in 110.0 g of benzene froze at 4.39 oc. what is the mol
    6·2 answers
  • Be sure to answer all parts. ethyl butanoate, ch3ch2ch2co2ch2ch3, is one of the many organic compounds isolated from mangoes. wh
    12·1 answer
  • A sample of a substance has a mass of 4.2 grams and a volume of 6 milliliters. The density of this substance is
    5·2 answers
  • Balance the following redox reaction occurring in an acidic solution. The coefficient of Cr2O72−(aq) is given. Enter the coeffic
    13·1 answer
  • Analysis of the water content of a lake found in the desert showed that it contained 16.6 percent chloride ion, and had a densit
    9·1 answer
  • 5. Rubbing alcohol is a commonly used disinfectant and has a cooling effect when applied to the skin. The active ingredient in r
    12·1 answer
  • describe the energy inputs and outputs for the campfire. Use the law of conservation of energy to construct a valid qualitative
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!