Blog

The right atrioventricular valve (tricuspid) regulates the opening between the _________ and the _________.

What is the mole fraction of propanol, C3H7OH (MW=60.11), if 220.5 g of propanol is added to 250.00 g of water?

For a first-order reaction, the initial concentration of reactant A is  0.668 M and has a rate constant of 6.64×10-2 hr –1.  What would the concentration be after 7 half-lives?

What is the pH of a solution made by adding 40.00 mL of 0.18 M NaOH to 42.00 mL of a 0.23 M nitrous acid solution, HNO2?( Ka of nitrous acid 4.6 x  10-4)

You want to design a mouse that has gene knocked out, but only in Ins1 knocked out only in pancreatic beta cells (promotor: Pdx1). Which of the following do you need?

Antigens are molecules found on the ____ plasma membrane that activate an ______ response.

Which component of the RecBCD complex has both helicase and nuclease activity?

Which of the following is FALSE regarding Salmonella Hin recombinase?

The following initial reaction rates were observed for the reaction below: Experiment  [A] (M) [B] (M) Initial Rate (M/s) 1 2.40x 10-3 3.40x 10-2 4.60×10-2 2 4.80 x 10-3 3.40x 10-2 1.84 x 10-1 3 2.40x 10-3 1.02x 10-1 1.38x 10-1 Determine the initial reaction rate for a solution containing 1.9 x 10-2 M of A and 2.3 x 10-3 M  of B. 

Which of the following statements is /are true about the following graph () with a liner equation of y=3.40x+9.00  The graph represents a first order reaction The graph represents a second order reaction The rate constant k is 3.4 M-s-