1answer.
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
neonofarm [45]
3 years ago
7

Currently this lab is run qualitatively asking only for whether a solution is acidic, neutral, or basic. If quantitative informa

tion was to be acquired for this experiment, what range of pHs would the universal indicator described in your lab manual be unable to distinguish?
(A) 7.6-8.0
(B) 7.0
(C) 8.0-8.6
(D) 6.0-7.6
Chemistry
1 answer:
crimeas [40]3 years ago
8 0

Answer:

The only PH range which is not covered by any of the given components of the universal indicator is 7.6-8.0

Hence the PH range 7.6-8 can't be described using universal indicator.

You might be interested in
A 20.0 milliliter sample of 0.200 molar K₂CO₃ solution is added to 30.0 milliliters of 0.400 molar Ba(NO₃)₂ solution. Barium car
sveticcg [70]

Answer:

0.32M

Explanation:

<u>Step 1:</u>  Balance the reaction

K2CO3 + Ba(NO3)2 ⇔ KNO3 + BaCO3

We have a 20 mL 0.2 M K2CO3 and a 30mL 0.4M Ba(NO3)2 solution

SinceK2CO3 is the limiting reactant, there will remain Ba(NO3)2 after it's consumed and produced KNO3 + BaCO3

<u>Step 2: </u>Calculate concentration

To find the concentration of the barium cation we use the following equation:

Concentration = moles of the <u>solute</u> / volumen of the <u>solution</u>

<u />

<u>[Ba2+] </u> = (20 * 10^-3 * 0.2M + 30 * 10^-3 * 0.4M) / ( 20 + 30mL) *10^-3

[Ba2+] = 0.32 M

The concentration of Barium ion in solution is 0.32 M

6 0
2 years ago
What is the velocity of a wave traveling north with a frequency of 75 hertz and a wavelength of
Vanyuwa [196]

Answer:

v = 450 m/s

Explanation:

Given data:

Frequency = 75 Hz

Wavelength = 6 m

Velocity = ?

Solution:

Velocity is the product of frequency and wavelength.

v = f × λ

v = 75 Hz ×  6 m

Hz = s⁻¹

v = 75  s⁻¹  ×  6 m

v = 450 m/s

3 0
2 years ago
Oliver needs to standardize a base solution by titration with an acid solution of known concentration. He finds the volume of th
Olin [163]
Write a balance equation for the reaction between the analyte and the titrant.
Calculate the # of moles of titrant using the volume of titrant required and the concentration of titrant.
Calculate the # of moles of analyte using the stoichiometric coefficients of the equation.
Calculate the concentration of the analyte using the number or moles of analyte and the volume of analyte titrated.
7 0
2 years ago
A steam engine (assume a Carnot engine ) has an efficiency of 50.8%. If the waste heat has a temperature of 72.4 ◦C, what is the
Inessa05 [86]

Answer:

The temperature of the boiler is approximately 147.1 °C

Explanation:

A Carnot engine is an ideal engine that has the highest efficiency among all the engines because the second law of thermodynamics.That efficiency \eta  is:

\eta=1-\frac{T_{c}}{T_{h}}

with T_{h} the temperature of the hot reservoir (the boiler temperature) and T_{c} the temperature of the cold reservoir (the steam temperature). Solving for T_{h}:

T_{h}=\frac{-T_{c}}{\eta-1}=\frac{-72.4}{0.508-1}\approx147.1\,C

3 0
2 years ago
Is density a physical property that can be used to identify matter
Ganezh [65]
Yes. density is a physical property that can be used to identify matter
5 0
3 years ago
Other questions:
  • Which material does not melt at any temperature? wood, a mixture of different substances ethanol, a molecular compound sodium ch
    8·1 answer
  • A 50.0 mL sample if 0.0500 M Ca(OH)2 is added to 10.0 mL of 0.0200M HNO3. How many miles of excess acid or base are present?
    12·1 answer
  • A naturally occurring, inorganic solid with an orderly crystalline structure and a definite chemical composition is _____.
    11·2 answers
  • If it takes 54ml of 0.1 m naoh to neutralize 125 ml of a hcl solution with unknown concentration, what is the concentration of t
    13·1 answer
  • How much of a sample remains after five half-lives have occurred?
    7·1 answer
  • Write the molecular formula of poly(glycine)
    7·1 answer
  • When there are 165.0grams of reactants, what is the mass of the products for that reaction?
    11·1 answer
  • A reaction happens quickest during:
    5·2 answers
  • Help asap! if u answer correct Ill give brainliest!!
    7·2 answers
  • When you exercise strenuously, your body produces excess heat. Describe what your body does to help prevent your temperature fro
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!