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4 years ago

What was the open-range system

1 answer:

5 0

Answer: In the Western United States and Canada, open range is rangeland where cattle roam freely regardless of land ownership. ... Land in open range that is designated as part of a "herd district" reverses liabilities, requiring an animal's owner to fence it in or otherwise keep it on the person's own property.

Explanation: Mark me as brainliest

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How many grams of H3PO4 are in 300 mL of a .50 M solution of H3PO4

Liono4ka [1.6K]

The first thing you need to do is convert mL into L
so (175 mL)(.001L/1mL)=.175L then you multiply by the Molarity of H3PO4 which is 3.5mol/L so (.175L)(3.5mol/L)=.6125 mol H3PO4, and since it wants the answer in grams you then multiply (.6125molH3PO4) by the molar mass of H3P04 which is about 97.99g and your answer is 60.02g which is about 60 grams of H3PO4. Hope this helped

3 0

4 years ago

PLEASE HELP ONLY ONE QUESTION

ad-work [718]

A chemical reaction occurs when reactant particles collide with proper energy and proper orientation.

Hope this helps! Have a great day! <3

6 0

3 years ago

Read 2 more answers

At a certain temperature a 42.55% (v/v) solution of ethyl alcohol, C2H5OH, in water has a density of 0.9027 g mL-1. The density

swat32

Answer:

a. 7.187M.

b. 7.962m.

c. 0.1846

Explanation:

This solution contains 42.55mL of ethyl alcohol in 100mL of solution.

a. Molar concentration = Moles ethyl alcohol / L solution:

Moles ethyl alcohol -Molar mass: 46.07g/mol-

42.55mL * (0.7782g/mL) * (1mol / 46.07g) = 0.7187 moles ethyl alcohol

Liters solution:

100mL * (1L / 100mL) = 0.100L

Molar concentration: 0.7187mol / 0.100L = 7.187M

b. Molal concentration: Moles ethyl alcohol (0.7187moles) / kg solution

kg solution:

100mL * (0.9027g / mL) * (1kg / 1000g) = 0.09027kg

Molal concentration: 0.7187mol / 0.09027kg = 7.962m

c. Mole fraction: Moles ethyl alcohol / Moles ethyl alcohol + moles water

Moles water: -molar mass: 18.01g/mol-

Volume water = 100mL - 42.55mL = 57.45mL

57.45mL * (0.9949g/mL) * (1mol/18.01g) = 3.1736 moles water

Moles fraction:

0.7187 moles ethyl alcohol / 0.7187 moles ethyl alcohol+3.1736 moles water

= 0.1846

4 0

3 years ago

A loaf of bread has a volume of 700 cm3 and a mass of 420 g. what is the density of the bread?

joja [24]

We know that the equation for density is:

$D=\frac{m}{V}$

where D is the density, m is the mass in g, and V is the volume in either mL or cubic centimeters.

So then, given two of the variables, we can solve for density:

$D=\frac{420g}{700cm^{3}}$

$D=\frac{0.6g}{cm^{3}}$

Therefore, the density of the bread is 0.6g per cubic centimeter.

8 0

4 years ago

What is the area of an atom with the least amount of mass?

Vlad1618 [11]

The electron cloud has the least amount of space.

6 0

4 years ago

What was the open-range system ​

What was the open-range system