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Harman [31]
3 years ago
13

Determine the volume of a cereal box that has a mass of 549.98 g and density of 1.69 g/cm3​

Chemistry
1 answer:
lisabon 2012 [21]3 years ago
8 0

Answer:

I used a calculator to calculate the volume:

the volume formula is V =m

/ρ

the answer is 325.43195266272 cubic meter, or about 325.43

Explanation:

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Name the element that reacts easily with chlorine, forming a compound abundant in Earth’s oceans.
Dominik [7]

Hey there!

The correct answer is sodium or sodium chloride. Basically, table salt.

Hope this helped!

8 0
4 years ago
A chemist places 2.5316 g of Na 2SO 4 in a 100 mL volumetric flask and adds water to the mark. She then pipets 15 mL of the resu
Lera25 [3.4K]

Answer:

The concentration of the most dilute solution is 0.016M.

Explanation:

First, a solution is prepared and then it undergoes two subsequent dilutions. Let us calculate initial concentration:

[Na_{2}SO_{4}]=\frac{moles(Na_{2}SO_{4})}{liters(solution)} =\frac{mass((Na_{2}SO_{4}))}{molarmass(moles(Na_{2}SO_{4}) \times 0.100L)} =\frac{2.5316g}{142g/mol\times 0.100L } =0.178M

<u>First dilution</u>

We can use the dilution rule:

C₁ x V₁ = C₂ x V₂

where

Ci are the concentrations

Vi are the volumes

1 and 2 refer to initial and final state, respectively.

In the first dilution,

C₁ = 0.178 M

V₁ = 15 mL

C₂ = unknown

V₂ = 50 mL

Then,

C_{2}=\frac{C_{1} \times V_{1} }{V_{2}} =\frac{0.178M \times 15mL}{50mL} =0.053M

<u>Second dilution</u>

C₁ = 0.053 M

V₁ = 15 mL

C₂ = unknown

V₂ = 50 mL

Then,

C_{2}=\frac{C_{1} \times V_{1} }{V_{2}} =\frac{0.053M \times 15mL}{50mL} =0.016M

3 0
3 years ago
Theories in science can be disproved through new or extended research. <br>1. True <br>2. False
tresset_1 [31]

Answer:

True

Explanation:

This is true because technology advances all the time and even Newton's "Laws" could be disproved in the future.

4 0
3 years ago
Read 2 more answers
The structure of the Earth is divided into four major components: the crust, the mantle, the outer core, and the inner core.
SSSSS [86.1K]
It is true, they are the 4 main layers.
3 0
3 years ago
A kilogram weighs (at the earth's surface, e.g., the grocery store) approximately:
stira [4]
D. 2.2 pounds would be the answer
3 0
3 years ago
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