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3 years ago

How many molecules of lactate can one molecule of lactate dehydrogenase act on in 21 minutes?

1 answer:

6 0

The turnover number (number of molecules the enzyme can act on per second) for lactase dehydrogenase is 1,000 lactate molecules per second.
In one minute, this becomes:

(1,000 molecules / second) * (60 seconds / minute)
= 60,000 molecules / minute

In 21 minutes, this will be:

60,000 * 21

= 1.26 x 10⁶ molecules of lactate

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Which term describes the weather in an area over a long period of time?

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Answer:

climate

Explanation:

causes it happens over a long period of time

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3 years ago

How many moles of Cu do you need to react with 12 moles of O2? 2Cu(s) + O2(g) 2CuO(s)

zzz [600]

Answer:

24 mol Cu

General Formulas and Concepts:

Chemistry

Stoichiometry

Explanation:

Step 1: Define

RxN: 2Cu (s) + O₂ (g) → 2CuO (s)

Given: 12 moles O₂

Step 2: Stoichiometry

$12 \ mol \ O_2(\frac{2 \ mol \ Cu}{1 \ mol \ O_2} )$ = 24 mol Cu

Step 3: Check

We are given 2 sig figs.

Our final answer is in 2 sig figs, so no need to round.

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3 years ago

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Answer:

Explanation:

One of the properties of metals is their abilities to form a stable compounds by losing electron(s). Metals form positive ions (cations) when they lose electron(s).

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3 years ago

Which formula represents a nonpolar molecule containing polar covalent bonds h-h?

zhuklara [117]

H2. Since the difference in electronegativity between two identical atoms is 0, the resulting molecule is non-polar.

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2 years ago

What is generally the best approach when liquid from a large reagent bottle is needed in an experiment

Paul [167]

Answer:

See the answer below

Explanation:

The best approach would be to pour the liquid from the large reagent bottle into a small-size beaker or reagent bottle first, before measuring the required quantity out into the reaction vessel. This is necessary in order to maintain safety in the laboratory.

Pouring the liquid directly from the large reagent bottle into the measuring cylinder or directly into the reaction bottle can compromise safety in the laboratory. The liquid might splash out and cause harm to the handler or create other harmful circumstances in the laboratory.

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