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Brut [27]
3 years ago
5

Where can you find the information needed to change grams of a substance to moles?

Chemistry
1 answer:
vlada-n [284]3 years ago
7 0
Oxidation numbers is the right answer 
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How many grams of glucose are needed to prepare 400. ml of a 2.0%(m/v) glucose solution?
tatuchka [14]
8 grams

A <span>2.0%m/v</span> (mass/volume) solution is 2 grams of solute in 100 mL of final solution.

So for 400 mL of solution, you require

<span>400mL⋅<span>2 g<span>100mL</span></span>=<span>8 g</span></span>

8 0
3 years ago
Read 2 more answers
Consider the balanced equation
Naya [18.7K]
4:2. You are comparing the coefficients of NH3 and N2
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3 years ago
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Carbon monoxide is a gas at 0 °c and a pressure of 1.58 × 105 pa. it is a diatomic gas, each of its molecules consisting of one
Hoochie [10]

Given temperature = 0^{0}C = (0^{0} + 273 )K  = 273 K

Pressure = 1.58 ×10^{5} Pa ×\frac{1 atm}{1.01325*10^{5}Pa}

= 1.56 atm

Density =\frac{PM}{RT}

ρ = \frac{(1.56 atm)(28.01 g/mol)}{(0.08206 L.atm/mol.K)(273 K)}

= 1.95 g/L

5 0
3 years ago
28. What is a surfactant? Explain how it works.
lidiya [134]

\mathbb\color{orange}{\tiny A\scriptsize N\small S\large W\Large E\huge R}

  • surfactant, also called surface-active agent, substance such as a detergent that, when added to a liquid, reduces its surface tension, thereby increasing its spreading and wetting properties.
  • In the dyeing of textiles, surfactants help the dye penetrate the fabric evenly.
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7 0
2 years ago
1. Describe the particles and their motion in solids, liquids, gasses, and plasma. 2. Explain the law of conservation of mass. G
Andru [333]

Answer:

I'll do #1

Explanation:

Solids:They are molecules packed together and contain the least amount of kinetic energy

Liquids:Flows frequently in space, of constant volume

Gasses:Gas is made up of atoms,mostly made up of a mixture of air

Plasma:Largest part of your blood

Hope This Helppps!!Good Luck!!!

5 0
3 years ago
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