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Vedmedyk [2.9K]
3 years ago
15

A student has to design a titration experiment to determine the concentration of an unknown acid. Answer questions a–f.

Chemistry
1 answer:
Paraphin [41]3 years ago
3 0
29101929228/92992929292
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country of origin and chemical makeup

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What is Mars colonization?
serious [3.7K]

Answer:The colonization of Mars has received interest from public space agencies and private corporations and has received extensive hypothetical treatment in science fiction writing, film, and art.

Explanation:

3 0
3 years ago
A+100+gram+alloy+of+nickel+and+copper+consists+of+70+wt+%+ni+and+30+wt+%+cu.+what+are+the+atom+percentages+of+ni+and+cu+in+this+
Softa [21]

Atomic percentages<u>: 68% of copper and 32% of nickel.</u>

How this is calculated?

The given alloy is 100 g ,

m(Cu) = 0,7 · 100 g = 70 g.

m(Ni) = 0,3 · 100 g = 30 g.

n(Cu) = m(Cu) ÷ M(Cu) = 70 g ÷ 63,546 g/mol

n(Cu) = 1,10 mol.

n(Ni) = m(Ni) ÷ M(Ni) = 30 g ÷ 58,71 g/mol

n(Ni) = 0,51 mol

n(Cu) : n(Ni) = 1,10 mol : 0,51 mol

%(Cu) = 1,1 mol ÷ 1,61 mol = 0,68 = 68 %.

Similarly, %(Ni)=32%

What are Cu-Ni alloys?

  • Cu-Ni alloys are alloys of copper (base metal with the largest individual content) and nickel with or without other elements, whereby the zinc content may not be more than 1%.
  • When other elements are present, nickel has the largest individual content after copper, compared with each other element.
  • As with other copper alloys, it is necessary to distinguish between wrought alloys, which are processed to semi-finished products, and cast alloys, from which castings are produced by various casting processes.

To know more about  Cu-Ni alloys, refer:

brainly.com/question/16856761

#SPJ4

6 0
2 years ago
How much work is done by a 35-watt light bulb if it is on for 1,320 seconds?
OleMash [197]

Answer:

The 35-watt light bulb does a work of 46200 joules in 1320 seconds.

Explanation:

From Physics we remember the definition of work (W), measured in joules, by the following integral equation:

W = \int\limits_{0}^{t} {\dot W} \, dt (1)

Where \dot W is the power, measured in watts.

If the power is stable in time, then the work can be calculated by the following algebraic equation:

W = \dot{W}\cdot \Delta t (2)

If we know that \dot W = 35\,W and \Delta t = 1320\,s, then the work done by the 35-light bulb is:

W = (35\,W)\cdot (1320\,s)

W = 46200\,J

The 35-watt light bulb does a work of 46200 joules in 1320 seconds.

8 0
3 years ago
+ oxygen carbon dioxide + water + energy <br><br> Sunlight <br> Sugar<br> Oxygen <br> Carbon
alukav5142 [94]
Sunlight will be the answer
may be




(if you will provide a little more information about your question.....

it will be easy to give the answer)
8 0
4 years ago
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