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posledela
3 years ago
7

How does raising the temperature affect the rate of reaction

Chemistry
1 answer:
Vesnalui [34]3 years ago
4 0
<span>The rate of a chemical reaction can be increased by raising the temperature. </span>
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A solution that is a 4 on pH scale is a
Dominik [7]
A pH scale runs from 1 to 14 with 7 being neutral.

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since this solution has a pH scale of 4.... the solution is basic
3 0
3 years ago
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What is the half-life of a pharmaceutical if the initial dose is 500 mg and only 31 mg remains after 6 hours?
Sergeu [11.5K]

Answer:

\large \boxed{\text{b. 1.5 h}}

Explanation:

1. Calculate the rate constant

The integrated rate law for first order decay is

\ln \left (\dfrac{A_{0}}{A_{t}}\right ) = kt

where

A₀ and A_t are the amounts at t = 0 and t

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\begin{array}{rcl}\ln \left (\dfrac{500}{31}\right) & = & k \times 6\\\\\ln 16.1 & = & 6k\\2.78& =& 6k\\k & = & \dfrac{2.78}{6}\\\\& = & 0.463 \text{ h}^{-1}\\\end{array}

2. Calculate the half-life

t_{\frac{1}{2}} = \dfrac{\ln2}{k} = \dfrac{\ln2}{\text{0.463  h}^{-1}} = \textbf{1.5 h}\\\\ \text{The half-life is $\large \boxed{\textbf{1.5 h}}$}

4 0
3 years ago
If 2.0 g of water at 0.00°c is to be vaporized, how much heat must be added to it? the specific heat of water is 1.0 cal/g·k, it
krok68 [10]
45 hope it helps hope you get a good grade

6 0
3 years ago
I NEED HELP KNOW LAST QUESTION ON MY TEST
RoseWind [281]

Answer:  

Explanation: In my opinion  law is stated as fact because it is passes through and approved by many peoples but theory is an idea someone has and is not approved and is set on a base of beliefs.

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What career is when a person anlysis food in laboratory ?
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Hi!

Your Question,

what career is when a person anlysis food in laboratory ?

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#Turkey

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3 years ago
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