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MA_775_DIABLO [31]
3 years ago
15

Dichlorine heptoxide (C1 2 0 7) is a

Chemistry
1 answer:
Setler [38]3 years ago
8 0

Answer:

Identify the "given" information and what the problem is asking you to "find."

Given : Cl2O7

Find: % Composition (% Cl and %O)

List other known quantities.

Mass of Cl in 1 mol Cl2O7 , 2 Cl : 2 x 35.45 g = 70.90 g

Mass of O in 1 mol Cl2O7 , 7 O: 7 x 16.00 g = 112.00 g

Molar mass of Cl2O7 = 182.90 g/mol

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What are variables that do not change in a experiment called
lozanna [386]
Controlled variables: do not change as they must be held constant

Independent variables: are controlled and manipulated

Dependent variables: effected by changes to the independent variable
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4 years ago
Isoniazid is used in the treatment of tuberculosis and multiple sclerosis. Identify each lone pair as either localized or deloca
dolphi86 [110]

Answer:

Please find the complete question and its solution in the attached file:

Explanation:

4 0
3 years ago
What color would the methyl orange indicator turn in a solution with a pH of 2?
alexdok [17]

Answer:

The answer is red.

Explanation:

  1. Methyl orange is an organic dye that used as an indicator in acid-base titrations because its color is changed according to pH of the medium (acidic, neutral or basic).
  2. Methyl orange is red in acidic solutions, orange in neutral solutions, and yellow in basic solutions.

Since pH of the solution is 2, the solution is acidic, the color of the solution will be red.

4 0
3 years ago
A positive charge is placed at rest at the center of a region of space in which there is a uniform, three-dimensional electric f
Vladimir [108]

Answer:

Ans- It will decrease as the charge travels towards the electrical field.

Explanation:

Ans- It will decrease as the charge travels towards the electrical field.

As we have learn, F= qE i.e. the electrical field will exert a force on the positively charged in the direction of the electrical field, this will accelerate the positive charge resulting in the conversion of potential energy into kinetic energy.

6 0
4 years ago
A 2.50L sample of nitrogen gas at a temperature of 308K has a pressure of 1.15atm. What is the new volume of the gas if the pres
iris [78.8K]

Answer:

1.48L

Explanation:

From the question given, we obtained the following data:

V1 (initial volume) = 2.50L

T1 (initial temperature) = 308K

P1 (initial pressure) = 1.15atm

P2 (final pressure) = 1.80atm

T2 (final temperature) = 286K

V2 (final volume) =..?

Using the general gas equation P1V1/T1 = P2V2/T2, the final volume of the gas can obtain as follow:

P1V1/T1 = P2V2/T2

1.15 x 2.5/308 = 1.8 x V2/286

Cross multiply to express in linear form:

308 x 1.8 x V2 = 1.15 x 2.5 x 286

Divide both side by 308 x 1.8

V2 = (1.15 x 2.5 x 286)/(308 x 1.8)

V2 = 1.48L

Therefore, the new volume of the gas is 1.48L

7 0
3 years ago
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