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3 years ago

Cell Walls Function (short)

Chemistry

1 answer:

bazaltina [42]3 years ago

6 0

The main functions of the cell wall are to provide structure, support, and protection for the cell.

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Number of molecules of baking soda

Softa [21]

Answer:

Baking soda = No. of atoms are 1 sodium + 1 Hydrogen + 1 carbon + 3 oxygens = 6 atoms per molecule.

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2 years ago

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Water flows over Niagara Falss at the average rate of 2,400,000 kg/s, and the average height of the falls is about 50 m. Knowing

liberstina [14]

Answer:

1. 176 × 10^12 W ; 78400000000

Explanation:

Given the following :

Fall rate = 2,400,000kg/s

Average height of fall = 50m

Gravitational Potential of falling water = mgh = mass × acceleration due to gravity × height =

How many 15 W LED light bulbs could it power?

Recall : power = workdone / time

Workdone = gravitational potential energy

Mass of water = density * volume

Density of water = 1 * 10^3kg/m^3

Rate of fow = volume / time = 2400000

Hence,

Power = 1000 * 2,400,000 * 9.8 * 50

Power = 1176000000000

Power = 1. 176 × 10^12 W

How many 15 W LED light bulbs could it power?

1176000000000 / 15 = 78400000000

= 78400000000 15 W bulbs

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3 years ago

How many hydrogen atoms are found in the<br> hydrate (NH4)3PO4.5H2O?

igomit [66]

Answer:

Explanation:

3x4+ 5x2

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2 years ago

Under which conditions of temperature and pressure does a real gas behave most like an ideal gas

Veseljchak [2.6K]

At higher temperature, and lower pressure.

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3 years ago

What will be the boiling point of a solution of 8 moles of sodium dichromate (Na2Cr2O7) dissolved in 8 kg of water? Use the foll

nexus9112 [7]

Answer:

1. 374.69 K

Explanation:

Hello,

In this case, pure water's boiling point is 373.15 K, thus by considering the boiling point increase equation:

$\Delta T=imKf$

Whereas i=2 since two ionic species are formed,actually, the experimental value is 2.42 so better work with it, thus:

$\Delta T=2.42*(\frac{8}{8}m)*0.512 Km^{-1}=1.239K$

Thus, the required boiling point is:

$T_b=373.15K+1.239K\\T_b=374.69K$

Regards.

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3 years ago

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