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how i find the density of rutheniume metal??

What is one of the advantages of a fuel cell?
a. They are more efficient than combustion.
b. all of ...

Consider the reaction:C2H4(g) + H2O(g)CH3CH2OH(g)Using standard thermodynamic data at 298K, calculat...

If the caffeine concentration in a particular brand of soda is 2.91 mg/oz,2.91 mg/oz, drinking how m...

Part A:
Calculate the energy needed to heat the cube of silver, with a volume of 18.0 cm3 , from 17 ...

2. A car averages 28.5 miles per gallon of gasoline. How many liters of gasoline will be needed for ...

Please draw the ma lor Products for the olouwing r
HBr/Uvlight
Hz /Lindlars
Ca talyst
onc

Label each reactant as either a Bronsted-Lowry acid or a Bronsted-Lowry base.
a. HF(aq) + H2O(l) --&...

State two conditions which favor SN1  and SN2 reaction. ( Structure of alkyl halide  and nucleophile...

Table 5.5 (data)ObservationsSample Tested Add HCISolid CaCO 3 _______Solid CuSo 4 _______Mixture ___...

when acid is added to the blood buffer sytem what reacts with what to neutralize it

1. What is the formula mass of barium phosphate, Ba3(PO4)2?
506.95 amu
570.95 amu
232.30 amu
1013.90...

If 54.7 grams of propane (C3H8) and 89.6 grams of oxygen (O2) are available in the balanced combusti...

For the reaction
2 ICl(g) &lt;==&gt; I2(g) + Cl2(g)
the value of Kc = 0.110
Calculate the value of K...

The carbon dioxide you breathe out comes from
A. glycolysis.
B. the electron-transport chain.
C. ana...

Select the correct bond angles from the following list:
 
a) 120°b) slightly less than 109.5°c) 180°...

One Liter of buffer at pH of 4.30 contains 0.33 M of sodium benzoate and 0.26 M of benzoic acid. Wha...

MasteringChemistry: Chapter X
P Introduction: Chemical Quantit X
+
C
https://session.masteringchemis...

Iron metal is reacted with hydrochloric acid to yield iron(II) chloride and hydrogen gas. A student ...

Which of the following will have the highest boiling point? Justify your answer.A. 0.10 m sodium sul...

Please define each around 50 words.
Nuclear Fission,
Nuclear Fusion,
Preparation and uses of Group I...

draw the most stable conformation of
(a) ethylcyclohexane
(b) 3-isopropyl-1,1-dimethylcyclohexane

Choose the statement that correctly describes how a weak electrolyte looks in a beaker of water.


 ...

e. 1
2. What is the wavelength of a photon having a frequency of 1.65 x 1015 Hz? (c
34 J s)
100 m/s,...

6. Determine the ionization energy for the hydrogen atom. The ionization energy is the energy
necess...

One of the following questions is true; the rest are false. Please identify the true statement in th...

Calculate the molar solubility of calcium hydroxide in a solution buffered at a pH of 4.0

What is the atomic mass of butane (C4H10)?
(C:12; H:1)
a. 28
b. 58
c. 116
d. 172

Write an atomic symbol for the isotope for Oxygen with 10 neutrons.

The equilibrium constant for a system at chemical equilibrium at 318 oC is 3.4 x 10-3.  Calculate th...

For the reaction2Na(s)+ 2H2O(l)2NaOH(aq) + H2(g)H° = -369 kJ and S° = -15.3 J/KG° would be less than...

2. You have a solution that contains 4.0g of oxalic acid dissolved in 100 mL of water. This solution...

2. Which of the following chemical equations is an oxidation reaction? 
Zn(s) + S(s)= Zn(s)
H2SO4(aq...

Does KOH (aq) + Co(CH3COO)3 (s)  yield H2 gas along with potassium acetate and Cobalt(III) hydroxide...

Calculate the pH of a solution that has a hydroxide ion concentration, [OH–], of 3.30 x 10-5 M.

For the reaction shown, at 25° C, dleta S  is0.00300 kJ/(mol K). Calculate the delta G for this reac...

Technetium-99m, an important radionuclide in medicine, has a half-life of 6.0 hours. What percentage...

Provide the major organic product of the reaction below.
2.
OCH3
1. CH,CH2CH,MgBr (2 eq)
2. H30*
HyC

What is the ratio of acid to base in a solution having a pH=9?

5. All of the following species have ground-state noble-
gas electron configurations except
a. Ge4+
...

How do you convert grams to moles and vice versa?

A molecule that moves electrons from the citric acid cycle to the electron-transport chain is
A. tRN...

What conversions do I need?
Children’s Liquid Motrin contains 100. mg of the pain reliever ibuprofen...

Currently, the atomic mass unit (amu) is based on being exactly one-twelfth the mass of a carbon-12 ...

Draw both resonance structures of the most stable carbocation intermediate in the reaction shown.

Density Lab (Need help plotting this graph)
How to plot this graph from the data sheet (see picture ...

Choleterol in blood is mesured in milligrams of cholesterol per deciliter of blood.  If the average ...

Calculate the mole fraction of KI in a solution made by dissolving 3.4 g of KI in 5.8 g of water.

Consider the reaction, H2 + I2 =&gt; 2 HI , which is found to be half order in I2 and first order in...

density is calculated by using the formula,density (g/ml) = mass (g)/volume (ml)So density is related to the mass and volume of the substance for which density needs to be calculated.Here we have to find density of ruthenium metalIn order to do so, first weigh a piece of ruthenium metal. Let this be equal to X gTo calculate volume of the ruthenium metal piece. Take a graduated cyllinder filled with certain volu...

how i find the density of rutheniume metal??

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