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Crank
3 years ago
11

What caused the bubbles to form when you added the catalase to the hydrogen peroxide and water mixture at 40 °c?

Chemistry
2 answers:
Dahasolnce [82]3 years ago
7 0
<span>What caused the bubbles to form when you added the catalyses to the hydrogen peroxide and water mixture at 40 °C? A. Catalyses activity heated the solution to its boiling point. B. Hydrogen gas formed during the formation of hydrogen peroxide. C. Oxygen gas formed during the decomposition of hydrogen peroxide.

This would be the water, mixture.</span>
Mrac [35]3 years ago
4 0

\boxed{{\text{Formation of oxygen}}} caused the bubbles to form when catalase is added to the hydrogen peroxide and water mixture at 40\;^\circ {\text{C}}.

Further explanation:

Catalyst:

These are the substances that change the rate of a chemical reaction but these don’t get consumed in the reaction. These have wide applications in petroleum, fertilizer and pharmaceutical industries. These are also used in the formation of many substances such as ammonia, nitric acid, and sulphuric acid.

Enzymes are biological catalysts that increase the rate of chemical reactions. These are highly specific in nature. Most enzymes are proteins. These increase the rate of reaction by decreasing the activation energy. Catalase is a common enzyme that catalyzes the decomposition of hydrogen peroxide to water and oxygen.

The given reaction occurs as follows:

2{{\text{H}}_{\text{2}}}{{\text{O}}_{\text{2}}}\xrightarrow{{{\text{Catalase}}}}2{{\text{H}}_{\text{2}}}{\text{O}} + {{\text{O}}_{\text{2}}}

Here, catalase catalyzes the decomposition of hydrogen peroxide and result in the formation of water and oxygen. Bubbles are formed due to production of oxygen gas during the reaction.

Learn more:

1. Which of these is an extensive property? brainly.com/question/1398514

2. Which of the phase changes is an exothermic change? brainly.com/question/1875234

Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Catalysis

Keywords: catalyst, enzyme, catalase, water, oxygen, hydrogen peroxide, H2O2, H2O, O2, 2H2O2, 2H2O, decomposition, bubbles, biological catalysts, specific, proteins, chemical reactions.

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A client who weighs 70 kg is receiving a solution of 0.9% sodium chloride (normal saline) 500 ml with dopamine 800 mg at 5 ml/ho
nordsb [41]

The mcg/kg/minute the client is receiving is 1.904 mcg/kg/min whose weight is 70 kg.

<h3>What does mcg kg mean?</h3>

1 milligram (mg) = 1000 micrograms (mcg) or 0.001 grams (g) 1 g = 1000 mg 1 kilogram (kg) = 1000 g 1 kg = 2.2 pound (lb) 1 liter (L) = 1000 milliliters (mL)

The number of mcg/kg/minute = flow rate × concentration ÷ mass of client

Flow rate = 12 ml/hour = 12 ml/hour × 1 hr/60 min = 0.2 ml/min

Concentration = mass of dopamine/volume

where

mass of dopamine = 800 mg and

volume =  500 ml

Concentration =800 mg/500 ml

= 1.6 mg/ml

= 1.6 mg/ml × 1000 mcg/mg

= 1600 mcg/ml

mass of client = 70 kg

Calculating mcg/kg/minute

So, substituting the variables into the equation, we have

mcg/kg/minute = flow rate × concentration ÷ mass of client

mcg/kg/minute = 0.08 ml/min × 1600 mcg/ml ÷ 70 kg

mcg/kg/minute = 320 mcg/min ÷ 70 kg

mcg/kg/minute = 1.904 mcg/kg/min

Thus, the mcg/kg/minute the client is receiving is 1.904 mcg/kg/min

Learn more about mcg/kg/minute here:

brainly.com/question/4253005

#SPJ1

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