All categories

3 years ago

What step usually comes last when solving numeric problems

1 answer:

6 0

No mathematics the most common way of solving an equation will be PEMDAS so the answer for your question will most likely be subtraction.

You might be interested in

Iron is biologically important in the transport of oxygen by red blood cells from the lungs to the various organs of the body. I

Aneli [31]

Answer : The number of iron atoms present in each red blood cell are, $1.077\times 10^9$

Explanation :

First we have to calculate the moles of iron.

$\text{Moles of iron}=\frac{\text{Mass of iron}}{\text{Molar mass of iron}}=\frac{2.90g}{55.85g/mole}=0.0519moles$

Now we have to calculate the number of iron atoms.

As, 1 mole of iron contains $6.022\times 10^{23}$ number of iron atoms

So, 0.0519 mole of iron contains $0.0519\times 6.022\times 10^{23}=3.125\times 10^{22}$ number of iron atoms

Now we have to calculate the number of iron atoms are present in each red blood cell.

Number of iron atoms are present in each red blood cell = $\frac{\text{Number of iron atoms}}{\text{Total number of red blood cells}}$

Number of iron atoms are present in each red blood cell = $\frac{3.125\times 10^{22}}{2.90\times 10^{13}}$

Number of iron atoms are present in each red blood cell = $1.077\times 10^9$

Therefore, the number of iron atoms present in each red blood cell are, $1.077\times 10^9$

6 0

3 years ago

Will a helicopter work in a vacuum

Viefleur [7K]

No, there’s not any pressure

5 0

3 years ago

When magnesium chloride reacts with water, 5.85 L HCl(g) is produced.

amid [387]

Answer: How many moles of HCl was produced?

⇒ 0.261 moles of HCl

How many moles of MgCl2 reacted?

⇒ 0.131 moles of MgCl2

What mass of MgCl2 reacted?

⇒ 12.4 g MgCl2

Explanation:

i just did it

3 0

3 years ago

Read 2 more answers

During which month is the bird population in Georgia increasing the most

AlladinOne [14]

It always has birds, it's in the South.

3 0

3 years ago

The ____ are new substances that are created following a chemical reaction. *

KonstantinChe [14]

Answer:

Explanation:

8 0

2 years ago