1. ## Chem

The reaction for the industrial production of hydrogen cyanide is given below. 2CH4 + 2NH3 + 3O2 --> 2HCN + 6H2O What mass of NH3 is required for the synthesis of 1.5 × 105 kg of HCN if the reaction has a 97.5% yield?

2. ## Chem

The reaction for the industrial production of hydrogen cyanide is given below. 2CH4 + 2NH3 + 3O2 --> 2HCN + 6H2O What mass of NH3 is required for the synthesis of 1.5 × 105 kg of HCN if the reaction has a 97.5% yield?

On 2 November 2006, Henry saved \$1200 in an account that pays 8.6% per annum simple interest. Three years later, he added another \$500 into the account. Find the amount in his account on 2 November 2012

4. ## Math

There are 45 students in a class of which 3/5of them are boys.how many girls ate there in the class?

5. ## Algebra II

What is the sum of the geometric series 12 E 2(1/2)^x x=0 4 0 2 3 PLEASE HELP Urgent

6. ## statistics

In a study of caffeine and stress, college students indicate how many cups of coffee they drink per day and their stress level on a scale of 1-10. The data appear below. Number of Cups of Coffee Stress Level 3 5 2 3 4 3 6 9 5 4 1 2 7 10 3 5 = 3.88 X= 5.13

7. ## Chemistry

A protein has a molecular weight of 98,300 grams/ mole. What will be the osmotic pressure if 0.128 grams of this protein I dissolved in 15.0 ml of water at 20 degrees calcias?

8. ## Chemistry

2. A 3.37 gram sample of a nonvolatile nonelectrolyte ( no ions) is dissolved in 23.7 grams of hexane (C6H14) at 25.0 degrees calcius. The vapor pressure of pure hexane at this temperature is 438 tort, and the vapor pressure of the solution is 419.3 torr.

9. ## Chemistry

1. The organic compound triphenylmethane (C19H16) when pure melts at 171.04 degrees c. When 1.92 grams of hexachlorobenzene (C6CL6) is mixed with 3.74 grams of triphenhlmethane, the melting point of the mixture is 163.19 degrees calcius. Calculate the

10. ## General chemistry

The density of the vapor of a compound at 95 degrees C and 827 mmhg is 7.41 grams/liter. Calculate the molecular weight.

11. ## math

Simplify (4x-6)/(3x^2-2x)*(3x^3-2x^2)/(4x^2-9)

1. ## English

Is it A ?

posted on December 6, 2017
2. ## Chem

Yeah thank you, but i still can't figure it out :(

posted on September 28, 2016
3. ## PHYSICS

I'm having the same problem

posted on August 24, 2016