A student weighs 5.0 g of sodium fluoride, formula mass 42 and dissolves it in enough water to fill a 259 ml flask. What is the concentration of the solution

Write the balanced equation for a reaction between aqueous nitric acid (hno3) and solid lithium metal (this is a single replacement reaction)

Imagine that twenty i.u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2