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4 years ago

The reaction for producing glucose in plants, called photosynthesis, is:

Chemistry

1 answer:

Firlakuza [10]4 years ago

8 0

Answer:

41.16 moles of H2O

Explanation:

Ratio for the products-reactants is 1:6, so 1 mol of glucose is produced when plants use 6 moles of water.

Then, let's make a rule of three:

1 mol of glucose is produce by using 6 moles of water

6.86 moles of glucose are produced by the use of (6 . 6.86)/1 = 41.16 moles of H2O

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Which solution has the greatest number of hydroxide ions?baking soda, pH = 9milk, pH = 6tomato juice, pH = 3.5vinegar, pH = 2

weqwewe [10]

Answer: -

Baking soda having a pH of 9, has the maximum number of hydroxide ions.

Explanation: -

More the pH of a solution, the more basic it is and more the number of hydroxide ions it has.

From the question we find that

baking soda has a pH = 9

milk has a pH = 6

tomato juice has a pH = 3.5

vinegar has a pH = 2

Thus among them baking soda has the highest pH.

So baking soda is the most basic and has the maximum number of hydroxide ions.

8 0

4 years ago

Read 2 more answers

Below are 10 different metric prefixes and their abbreviations. Match them up. :)

Sladkaya [172]

Answer:

1.G → giga

2.da → deca

3.n → nano

4.m → milli

5.M → mega

6.k → kilo

7.c → centi

8.d → deci

9.h → hecto

10.µ → micro

Explanation:

In descending order:

1.G → giga (1 . 10⁹)

5.M → mega (1 . 10⁶)

6.k → kilo (1 . 10³)

9.h → hecto (1 . 10²)

2.da → deca (1 . 10¹)

8.d → deci (1 . 10⁻¹)

7.c → centi (1 . 10⁻²)

4.m → milli (1 . 10⁻³)

10.µ → micro (1 . 10⁻⁶)

3.n → nano (1 . 10⁻⁹)

In example:

1000000 m = 1 Mm

0,000000001 m = 1 nm

7 0

3 years ago

What is the wavelength of a wave with a<br>velocity of 50 m/s and a frequency of 5 Hz?

pentagon [3]

Answer:

Wavelength is 10m

Explanation:

To solve this problem, we use the formula for wavelength

Wavelength = wave velocity / frequency

Wavelength = 50m/s / 5Hz

= 10m

8 0

3 years ago

What is the mole of 125 mg of Na? How many Na atoms?

Crank

(125 mg Na) x (1 g/1000mg) x (1 mol of Na/22.99 g) = 5.43 E -3 mols of Na

5.43 E -3 mols x 6.022 E 23 = 3.27 E 21 Na atoms

7 0

3 years ago

Place these hydrocarbons in order of decreasing boiling point. Rank from highest to lowest boiling point. 1. Paraffin, C40Hg2 2.

lesya [120]

Answer:

Paraffin > Heptadecane > Hexane > 2,2-dimethylbutane > Propane

Explanation:

It must first be establish that all the molecules listed in the question are alkanes. For alkanes, the intermolecular forces between the molecules of alkanes increases with increasing molecular weight. This is as a result of increase in the surface area of the molecule. Increase in surface area implies a greater degree of dispersion forces.

This is the reason why high boiling points are observed for high molecular weight alkanes.

6 0

3 years ago