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3 years ago

A sample of gas is measured to be 375 ml at 1.15 atm. The pressure

Chemistry

1 answer:

andre [41]3 years ago

6 0

Answer:

Direct method:

1.15x375/2.05

=21.03mL

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In which biome would you find the main types of plant life to be grasses and nonwoody plants

balandron [24]

You would find mostly grasses and nonwoody plants in a savanna.

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3 years ago

Five hundred (500) milliliters of sodium chloride 0.9% is prescribed to be given over 4 hours using a volumetric pump. What's th

Angelina_Jolie [31]

Given:

Volume of 0.9% NaCl = 500 ml

Time (t) = 4 hrs

To determine:

The infusion rate of NaCl in ml/hr

Explanation:

Based on the information- 500 ml of NaCl is to be given over a time span of 4 hrs

Hence, the volume of NaCl to be administered per hr is:-

= 1 hr * 500 ml/4 hr = 125 ml

Ans: Infusion rate = 125 ml/hr

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3 years ago

the first three ionization energies of an element x are 590, 1145, and 4912 kj mol-1. what is the most likely formula of the com

joja [24]

Answer: The chemical formula is $XSO_3$

Explanation:

Ionization energy is defined as the amount of energy that is required to remove an electron from a chemical species.

The ionization energy equation for the given values follow:

$X(g)\rightarrow X^+(g)+e^-;E_I=590kJ/mol$

$X^+(g)\rightarrow X^{2+}(g)+e^-;E_I=1145kJ/mol$

$X^{2+}(g)\rightarrow X^{3+}(g)+e^-;E_I=4912kJ/mol$

From the values of ionization energy above, it can be seen that the ionization energy increases as every succeeding electron is removed.

Second ionization energy is a little higher than the first one but there is a huge amount of difference between the third and second ionization energy.

This implies that the ion formed during second ionization energy has a stable configuration and it requires a humongous amount of heat to release the third electron.

Hence, the ion formed will be $X^{2+}$

Sulfite ion is a polyatomic ion having a chemical formula of $SO_3^{2-}$

An ionic compound is formed between the two ions and the chemical compound formed between the two will have a formula of $XSO_3$

Hence, the chemical formula is $XSO_3$

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3 years ago

What at the three different variables in density?

tatyana61 [14]

Answer:Independent, dependent, and controlled variables.

Explanation:

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3 years ago

Consider the compound hydroxyapatite, Ca10(PO4)6(OH)2. Name each ion present, give the charge of each ion and show that the form

emmainna [20.7K]

Ca₁₀(PO₄)₆(OH)₂ or Ca(OH)₂·3Ca₃(PO₄)₂

PO₄³⁻   phosphate ion
OH⁻   oxyhydroxide ion
Ca²⁺   calcium ion

10*(+2) + 6*(-3) + 2*(-1) = 0
10Ca²⁺ 6PO₄³⁻ 2OH⁻

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3 years ago