All categories

2 years ago

Exercice 1

Physics

1 answer:

Mariana [72]2 years ago

6 0

Answer:

Injections of aqueous solution of fruct

levulose of formula C, H, O,,

For

prevent dehydration such solutions are obtained

dissolving a mass m = 25g of fructose for a volume of 50

final solution.

1.1 Calculate the molecular molar mass of fructose

1.2 Determine the amount of corresponding fructose material

1.3 Calculate the molar concentration of these fructose solutions

1.4

You might be interested in

Describe the structure of an atom.

Maurinko [17]

A as an atom contains a nucleus where protons and neutrons are present. Electrons orbit the nucleus in paths called orbital

5 0

3 years ago

Acceleration of a body is 10m/s² , what does it mean?

Ganezh [65]

Answer:

It is actually an answer to a question. It has to do with acceleration due to gravity. To understand it more, solve work, energy and time. Search it online. God will help u

7 0

3 years ago

Read 2 more answers

Interpret using 12 as a reference point how can you tell that the hands of the clock on the right have moved from the previous p

zubka84 [21]

Answer:

The answer is "6:45 and 7:15".

Explanation:

In the given attache file two clocks are added, that's explanation defined as follows:

In the left image, it may assume, that the clock only at the right-hand side of a scene is move-in its previous position, which is shown to the left, as it was at 6:45 on the left but in the right image it will display the time that is 7:15.

6 0

3 years ago

Select the correct answer.

yKpoI14uk [10]

Answer:

Looks like Trigonal Planar

Explanation:

There are only 3 areas of electron density and no unpaired electrons on the central atom, which indicates trigonal planar. This image might help...

7 0

3 years ago

The maximum gauge pressure in a hydraulic lift is 18.0 atm what is the largest size vehicle

victus00 [196]

There is a missing part in the question. Found the complete text on internet:
"What is the largest size vehicle (kg) it can lift if the diameter of the output line is 28.0 cm? "

Solution
The diameter of the piston is 28.0 cm, this means its radius is 14.0 cm (half the diameter), so the area of the piston is
 $A=\pi r^2 = \pi (0.14 m)^2 =6.15 \cdot 10^{-2} m^2$

The maximum pressure of the lift is
 $p=18.0 atm = 1.82 \cdot 10^6 Pa$

Therefore the maximum force the piston can lift is
 $F=pA=(1.82 \cdot 10^6 Pa)(6.15 \cdot 10^{-2} m^2)=1.12 \cdot 10^5 N$

And the size (the mass) of the vehicle is
 $m= \frac{F}{g}= \frac{1.12 \cdot 10^5 Pa}{9.81 m/s^2} =1.14 \cdot 10^4 kg$

3 0

3 years ago