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Calculate final molarity of iodide anion in the solution.?

How many hydrogen atoms are there in 2.25 grams of methane?

Electron configuration question?

17) use the concentrations and pH value from solution 9 and the Kw value to approximate the Ka for acetic acid?

At a certain temperature, 0.920 mol of SO3 is placed in a 4.00-L container.?

Math help?

Help please. Thank you very much?

Help with this Chemistry question!?

KI + K2S2O8 reaction?

Chemistry Help!!?

For the following reaction, 0.429 moles of iron(II) chloride are mixed with 0.190 moles of silver nitrate.?

if a rectangle box is 30cm (LENGTH) by 20cm (HEIGHT) by 10cm (WIDTH). What will the length be of the longest pencil that can fiT?

When 1.20 mole of ammonia reacts, the total number of moles of water formed is?

The rate constant of a chemical reaction increased from 0.100s−1 to 3.30s−1 upon raising the temperature from 25.0∘C to 47.0∘C.?

(a+sqrt(b))^(2) = 49+12 sqrt(b) where a and b are integers and b is prime and find a and b?

the sector of a circle has a central angle θ=(π/4) and area (9π/8) ft2., what is the radius of the circle?

how does change in velocity divided by change in time equal m/s^2? (m/s final - m/s initial / s finals and s initial ) = m/s^2?

How to integrate~ [(2x-1)/(x^2-8x+15)] dx What method that can be use to evaluate?

Find an equation for the line perpendicular Write your answer in the form y = m x + b?

I have 3 boxes, each box contains 10 balls numbered from 0-9. what is the probability that the sum of 3 balls i get from each box will be 1?

Hello, please can some one help me in chemistry (gaseous section) exercises?

geometric sequence question?

8. Consider the following reaction Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s) a. Is zinc oxidized or is it reduced?

difference between condensation and dehydration?

How much of 1 1/8 ounces are equal to one pound?

For the function y= -2+5sin (π/12 (x-2)), what is the minimum value?

what would the molarity of a solution of 125g of NaHCO3 in enough water to make 675ml of solution?

When 47.8 J of heat are added to 13.0 g of a liquid, its temperature rises by 1.77 ∘C. What is the heat capacity of the liquid?

有CH4及C2H2的混合氣體50毫升，通入過量氧氣後，使之完全燃燒。在同溫同壓下，測得產物CO2的氣體80毫升，求原來CH4與C2H2的莫耳數比為多少? 求算式?

How do I find exact value of cos(2A) if cos A = sqrt(11)/6? And A is in Quadrant I?

Algebra 2: Write the polynomial equation of degree 4 with leading coefficient 1 that has roots at -2, -1, 3, and 4. Please help..thank you.?

Hess Law question. Please help.?

Chemistry question on half equations and oxidant and reductant?

A dog in an open field runs 12.0 m east and then 26.0 m in a direction 55.0 ∘ west of north.?

Solve the system of equations using elimination by addition?

what is the correct name for 1-ethyl-2-methyl-3-ethylcyclopentane?

no. of geometrical isomers of C2FClBrI ?

What mass of carbon disulfide would have to be burned to produce a mixture of carbon disulfide and sulfur dioxide that masses 34.4 g?

A wagon weighs 1,000 newtons and is pulled by a horse at 5 m/s., what is the power of the horse?

When the following equation is balanced: Cr⁺³ + ClO⁻¹ → CrO₄⁻² + Cl⁻¹ What is the correct coefficient in front of Cl⁻¹?

Could someone show me the math for calculating this molarity chem problem please?

What is the mass of 8.50 × 1022 molecules of NH3?

What is the volume in mL of 0.887 kg of mercury? (Density of mercury is 13.56 g/cm3)?

Determine the fifth term in the expansion of : (2x - 1/2x)^8? how do I determine the 5th term?

Comparing the effusion rate of oxygen and hydrogen, which one is faster and why?

Help with chemistry?

Let f(x) = 2x + 5 and g(x) = x2 − 3x + 2. Perform the function operation. g(x) · f(x). somehow i got the answer wrong?

Stats help: In a sample of n = 42 observations, the sum of x is 1134 and the sum of x² is 35736. What is the sum of squared deviations?

Solve the simultaneous equations to 3 significant figure 3^x-4^y=5, 3^x+1 +4^y=23?

Help please!?