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
strojnjashka [21]
4 years ago
13

ANSWER IT CORRECTLY PLEASE!!

Chemistry
1 answer:
Elis [28]4 years ago
6 0

Answer:

Explanation:

Pv = n RT

P =7.65, T= 310K, for glucose n = moles= weight/molar mass= weight/180, R is gas constant

7.65* V =W/180 *0.0821 * 310

w/v= 7.65*180/0.0821*310 = 1377/25.45 = 54.10 =5.4%

You might be interested in
How many moles of magneslum chloride are there in 148 grams of magnesium chloride?
vodomira [7]

Answer:

1.554442238816872 moles

Explanation:

3 0
3 years ago
Read 2 more answers
A solution of copper(II) chloride is added to a solution of sodium sulfide.
jeyben [28]

Answer:

a,morunoxidice

Explanation:

carbon - tranite>plangose ,finite, finite,MARETE

8 0
3 years ago
Choose the situation below that would result in an endothermic ΔHsolution.
Bess [88]

Answer:

Option A - When |ΔHsolute| > |ΔHhydration|

Explanation:

A solution is defined as a homogeneous mixture of 2 or more substances that can either be in the gas phase, liquid phase, solid phase.

The enthalpy of solution can either be positive (endothermic) or negative (exothermic).

Now, we know that enthalpy is amount of heat released or absorbed during the dissolving process at constant pressure.

Now, the first step in thus process involves breaking up of the solute. This involves breaking up all the intermolecular forces holding the solute together. This means that the solute molecules are separate from each other and the process is always endothermic because it requires energy to break interaction. Thus;

The enthalpy ΔH1 > 0.

Thus, the enthalpy of the solute has to be greater than the enthalpy of hydration.

4 0
3 years ago
Fuel cells have been developed that can generate a large amount of energy. For example, a hydrogen fuel cell works by combining
solmaris [256]
Use the equation P=VI.
P=power (in this case 10 kilowatts or 10000 watts)
V=voltage (in this case unknown)
I=current (in this case 15.8 amps)
rewrite the equation to be V=P/I
V=(10000 watts)/(15.8 amps)
V=632.9 volts
(I think the equation requires the units for power to be watts so you need to convert kilowatts into watts)
6 0
3 years ago
Write a balanced half-reaction for the reduction of gaseous oxygen to aqueous hydrogen peroxide in basic aqueous solution. Be su
Vesna [10]

Answer:

Balanced half-reaction: O_{2}(g)+2H_{2}O(l)+2e^{-}\rightarrow H_{2}O_{2}(aq.)+2OH^{-}(aq.)

Explanation:

Balanced half-reaction for the reduction of gaseous oxygen to aqueous hydrogen peroxide in basic solution should be written in the following step-by-step manner:

Half-reaction: O_{2}(g)\rightarrow H_{2}O_{2}(aq.)

Balance H and O in basic medium: O_{2}(g)+2H_{2}O(l)\rightarrow H_{2}O_{2}(aq.)+2OH^{-}(aq.)

Balance charge: O_{2}(g)+2H_{2}O(l)+2e^{-}\rightarrow H_{2}O_{2}(aq.)+2OH^{-}(aq.)

Balanced half-reaction: O_{2}(g)+2H_{2}O(l)+2e^{-}\rightarrow H_{2}O_{2}(aq.)+2OH^{-}(aq.)

7 0
4 years ago
Other questions:
  • What are some similarities amongst elements within a group?
    13·1 answer
  • What is neon: metal,non-metal,or metalloid?
    12·1 answer
  • The student allows the beakers filled with salt to continue boiling until all of the water
    5·1 answer
  • Scientists and engineers are studying ways to make artificial muscles out of carbon nanotubes. These muscles are lightweight and
    8·2 answers
  • How can you test to see if a substance is soluble or insoluble? 1 Place the substance in water. 2 Put the substance under sunlig
    13·1 answer
  • Calcium salts give bone its a. tensile strength. b. torsional strength. c. flexibility. d. compressional strength.
    14·1 answer
  • Hurry
    10·1 answer
  • Roasting a marshmallow IN the fire is an example of what type of heat transfer
    5·1 answer
  • If the strength of the magnetic field at A is 64 units, the strength of the magnetic field at B is _____.
    8·2 answers
  • How many particles is 18.2 moles of Lithium Hydroxide?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!