What is the rate of effusion for a gas that has a molar mass twice that of a gas thateffuses at a rate of 3.6 mol/min?

Answers

Answer 1

Answer:

Explanation:

ans: o.o846

Related Questions

Which of the following describes the element Mg. Choose all that apply. is very reactive as a metal forms a basic solution in water is found in nature only combined with other elements reacts vigorously with alkali metals to form salts consists of diatomic molecules in elemental form is one of the group of the least reactive elements
5. As a sample of matter is heated, its particles *O A are unaffectedO B. move more quicklyO C. move more slowlyD. stop moving
A proton is a very tiny particle inside an atom. The mass of a proton isestimated to be 0.00000000000000000000000167 g. What is the mass of aproton in scientific notation?
Which substance yields hydroxide ion as the only negative ion in aqueous solution?
If the enthalpy change of a reaction in a flask is δh = +67 kj, what can be said about the reaction?

Assuming binding is fast relative to subsequent catalytic steps, what relative effect does substitute the various active site residues have on catalysis versus substrate-binding? The various substitutions affecta. substrate-binding more than catalytic turnover.
b. catalytic turnover more than substrate binding.
c. substrate binding, but not catalytic turnover.
d. catalytic turnover, but not substrate binding.

Answers

Answer:

Explanation:

The various substitutions affect catalytic turnover more than substrate binding.

What mass of Nz will be needed to produce 31.5 grams of N2O5?4N2 + 502 --> 2N2O5
a) 158.3 grams
b) 38.64 grams
c) 4.96 grams
d) 16.34 grams

Answers

Answer: d) 16.34 grams

Explanation:

To calculate the moles :

$\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}$

$\text{Moles of} N_2O_5=(31.5g)/(108.01g/mol)=0.292moles$

The balanced chemical reaction given is:

$4N_2+5O_2\rightarrow 2N_2O_5$

According to stoichiometry :

As 2 moles of $N_2O_5$ are produced by= 4 moles of $N_2$

Thus 0.292 moles of $N_2O_5$ are produced by= = $(4)/(2)* 0.292=0.584moles$ of $N_2$

Mass of $N_2=moles* {\text {Molar mass}}=0.584moles* 28g/mol=16.34g$

Thus 16.34 g of $N_2$ will be needed

Which statements correctly describe the decay rates of radioactive isotopes? a} It takes two half-lives for a sample to fully decay.

b} The exact time when an individual atom will decay can be accurately predicted.

c} After each half-life, the amount of radioactive material is reduced by half.

d) All radioactive isotopes have the same half-life.

e} The decay of individual atoms in a sample of radioactive material is random.

Answers

Answer: b} The exact time when an individual atom will decay can be accurately predicted.

c} After each half-life, the amount of radioactive material is reduced by half.

Explanation:

All radioactive decay follows first order kinetics.

Rate law expression for first order kinetics is given by:

$t=(2.303)/(k)\log(a)/(a-x)$

where,

k = rate constant

t = time taken for decay process

a = initial amount of the reactant

a - x = amount left after decay process

Expression for calculating half life, which is the time taken by the half of the reactants to decompose is:

$t_(1/2)=(0.693)/(k)$

Answer:

For plato, the answer is C: after each half tile, the amount of radioactive material is reduced by half

How would you put this word equation into a balanced chemical equation: Aluminum nitrate reacts with potassium sulfate to produce aluminum sulfate and potassium nitrate.

Answers

Answer:

2Al(NO_{3} )_{3} + 3K_{2}SO_{4} ----> Al_{2}(SO_{4})_{3} + 6KNO_{3}

Explanation:

$2Al(NO_(3) )_(3) + 3K_(2)SO_(4) ----> Al_(2)(SO_(4))_(3) + 6KNO_(3)$

Round the following number to three significant figures: 156.5021 L

Answers

you round the 6 to a seven because there is a five following the decimal157

Predict the formula and name of a binary compound formed from the following elements: (a) Na and H, (b) B and O, (c) Na and S, (d) Al and F, (e) F and O, (f) Sr and Cl.

Answers

Answer and Explanation:

(a) Na and H : The compound formed by Na and H is sodium hydride which formula is NaH

(b) B and O : The compound formed by Ba and O is barium oxide which formula is BaO

(C)Na and S : The compound formed by Na and S is sodium sulfide which formula is $Na_2S$

(D) Al and F : The compound formed by Al and F is aluminium fluoride which formula is $AlF_3$

(E) F and O : The compound formed by F and O is oxygen fluoride which formula is $OF_2$

(F) Sr and Cl : The compound formed by Sr and Cl is strontium chloride which formula is $Srcl_2$

Other Questions

The vapor pressure of carbon disulfide is 355.6 torr at 25°C. What is the vapor pressure of a solution prepared by dissolving 10.60 g naphthalene (C10H8, Molar Mass = 128.2 g/mol) in 155 mL CS2 liquid (Molar Mass = 76.14 g/mol, density = 1.261 g/mL)? Assume the solution obeys Raoult's law, and treat naphthalene as a nonvolatile solute.

Treatment of (S)-( )-5-methyl-2-cyclohexenone with lithium dimethylcuprate gives, after protonolysis, a good yield of a mixture containing mostly a dextrorotatory ketone A and a trace of an optically inactive isomer B. Treatment of A with zinc amalgam and HCl affords an optically active, dextrorotatory hydrocarbon C. Identify compounds A, B, and C, including stereochemical configurations. Be sure to explicitly draw H and both wedge/dash bonds at any configuration center.

What is the value for the kinetic energyfor a n = 2 Bohr orbit electron in Joules?

Why is it important to keep your apparatus dry what reaction will occur between the grignard reagent and water?