Calculate the rate constant and the half-life

Reference no: EM13154417

The decomposition of dimethyl ether (CH3OCH3) to methane, carbon monoxide, and hydrogen gases is found to be first-order. At 500 C, a 150.0-mg sample of dimethyl ether is reduced to 43.2 mg after three quarters of an hour. Calculate: a.the rate constant b.the half-life at 500 C c.how long will it take to decompose 65% of the drug?

Reference no: EM13154417

Questions Cloud

Find degrees of freedom for the with-in dfw : There are 72 data values altogether. The degrees of freedom for the Between(dfB) and the degrees of freedom for the With-in (dfW) are?

Quattro incremental borrowing rate : Five equal payments of $10,000 per year are required by the term of the lease, with the first payment due upon signing. Quattro's incremental borrowing rate is 8%, but its implicit interest rate is unknown.

Calculate the vapor pressures of pure a and b : at 84 degrees C the total vapor pressure of a solution contains 1.2 moles A and 2.3 moles B is 331 mmHg. Upon the addition of another mole of B to the solution, the vapor pressure increasing to 347mmHg.

Aggregate supply curve and phillips curve for the economy : Explain how one might interpret periods where these measures are significantly different from each other as periods during which supply shocks occurred.

Calculate the rate constant and the half-life : Calculate: a.the rate constant b.the half-life at 500 C c.how long will it take to decompose 65% of the drug?

Determine if this was a good investment on after-tax basis : The company ises MACRS depreciation and its marginal tax rate is life of 5 years). The 10 cars were sold at the ending a MARR of 10% and using NPW, determine if this was a good investment on an after-tax basis.

Formulate a linear programming model for program : Determine the number of grams of each ingredient that must go into the drug in order to meet the antibiotic requirements at the minimum cost. Formulate a linear programming model for this program.

Problem on occupancy expense for the year : The renovations cost $50,000 and have a useful life of 8 years. Lisa's Boutique will record occupancy expense for the year ended December 31, of :

Variable overhead spending and efficiency variances : The budgeted variable manufacturing overhead rate is $4 per direct labor-hour. During July, the company incurred $39,100 in variable manufacturing overhead cost. Compute the variable overhead spending and efficiency variances for the month.

User Account

All Pages