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Chemistry

1 answer:

Anna007 [38]3 years ago

4 0

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Cell,neclus,genes,chromosomes,tissue,organ,organ system organism arrange in order?

egoroff_w [7]

The order in increasing is:

genes, chromosomes, cells, tissue, organ, system, organism

7 0

3 years ago

Write the balanced equation. Then calculate the volume of 0.65 M HCl required to completely neutralize 400.0 ml of 0.88 M KOH.

Misha Larkins [42]

Hello!

The balanced equation for the neutralization of KOH is the following:

HCl(aq) + KOH(aq) → KCl(aq) + H₂O(l)

To calculate the volume of HCl required, we can apply the following equation:

$moles HCl = moles KOH \\ \\ cHCl*vHCl=cKOH*vKOH \\ \\ vHCl= \frac{cKOH*vKOH}{cHCl}= \frac{400 mL*0,88M}{0,65M}= 541,54mL$

So, the required volume of HCl is 541,54 mL

Have a nice day!

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3 years ago

Convert 150 g/L to the unit g/mL. 15,000 g/mL 15 g/mL 0.15 g/mL 0.0015 g/mL

fredd [130]

1 g/L ------- 0.001 g/mL
150 g/L ----- ?

150 x 0.001 / 1

= 0.15 g/mL

Answer C

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4 years ago

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The Pecos Pueblo developed as a trading center over time. What evidence in the text supports the idea that this took a long time

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3 years ago

What is the mass (in grams) of 9.93 Ă— 1024 molecules of methanol (CH3OH)?

WINSTONCH [101]

Answer is: mass of methanol is 528.32 grams.

N(CH₃OH) = 9.93·10²⁴; number of methanol molecules.

n(CH₃OH) = N(CH₃OH) ÷ Na (Avogadro constant).

n(CH₃OH) = 9.93·10²⁴ ÷ 6.022·10²³ 1/mol.

n(CH₃OH) = 16.49 mol; amount of substance.

m(CH₃OH) = n(CH₃OH) · M(CH₃OH).

m(CH₃OH) = 16.49 mol · 32.04 g/mol.

m(CH₃OH) = 528.32 g.

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3 years ago