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Natalija [7]
3 years ago
11

Someone pls help me I will make you you brain

Chemistry
1 answer:
Mice21 [21]3 years ago
8 0

Answer:

i have no clue

Explanation:

umm cause i have no clue sorry lol but good luck

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Determine the number of molecules in 0.0500 mole of boron tribromide<br> (show work)
OleMash [197]

Answer:

There are 0.5 moles

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number  of particles.

To calculate the moles, we use the equation:

Thus there are 0.5 moles

Explanation:

7 0
3 years ago
Why is blood considered to be a suspension?
horrorfan [7]
Because there are several kind of cells in the blood, like red blood cell and white blood cell. They flow in the blood and will not precipitate, So it is called suspension.
4 0
3 years ago
For the Bradford assay, the instructor will make a Bradford reagent dye by mixing 50 ml of 95% v/v ethanol with 100 mg of Coomas
Flauer [41]

Answer:

4.25% is the final concentration of phosphoric acid.

Explanation:

Initial concentration of phosphoric acid = C_1=85\%=0.85

Initial volume of phosphoric acid = V_1=50 mL

Final concentration of phosphoric acid = C_2=?

Final volume of phosphoric acid = V_2=1 L=1000 mL

( 1L = 1000 mL)

C_1V_1=C_2V_2

C_2=\frac{C_1times V_1}{V_2}

=\frac{0.85\times 50 mL}{1000 mL}=0.0425=4.25%

4.25% is the final concentration of phosphoric acid.

4 0
3 years ago
1. Determine the number of significant figures in each of the following.
Nadya [2.5K]

Explanation:

a) 3 sig. figures

b) 3 sig. figures

c) 6 sig. figures

d) 2 sig. figures

e) 1.09 × 104 = 113.36 = 5 sig. figures

if it is 1.09 × 10^4, it is 10900 = 3 sig. figures

f) 4 sig. figures

4 0
3 years ago
PLS help, 20 points for you<br><br> I need a Molecular, and Ionic equations:<br> H2CO3 + LiOH -
STatiana [176]

The molecular equation of H₂CO₃ and LiOH:

H₂CO₃ (aq) + 2LiOH (aq) →  Li₂CO₃ (aq)  + 2H₂O (l)

The net ionic equation of the reaction of H₂CO₃ and LiOH:

H⁺ (aq)  + OH⁻ (aq)  →  H₂O (l)

<h3>What are the net ionic equations?</h3>

The net ionic equation of a chemical reaction can be described as an equation that expresses only those ions, elements, or compounds, that directly contributed to that chemical reaction.

The chemical equation for the reaction of H₂CO₃ and LiOH:

H₂CO₃ (aq) + LiOH (aq) →  Li₂CO₃ (aq)  + 2H₂O (l)

The complete ionic equation for the above reaction H₂CO₃ and LiOH is:

2H⁺ (aq) +  CO₃²⁻ (aq) + 2Li⁺ (aq) + 2OH⁻  → 2Li⁺ (aq) + CO₃²⁻(aq) + 2H₂O (l)

In the ionic equation, the Lithium and carbonate ions appear unchanged on both sides of the equation. When we mix the two solutions, neither the Lithium nor carbonate ions participate in the reaction. So Lithium and carbonate ions can be eliminated from the ionic equation.

H⁺ (aq)  + OH⁻ (aq)  →  H₂O (l)

Learn more about the net ionic equation, here:

brainly.com/question/15466794

#SPJ1

6 0
1 year ago
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