How many moles of hydrogen are present

Assignment Help Chemistry

Reference no: EM13139987

If 3.93 g of sodium borohydride contains 2.5 × 10^23 H atoms, how many moles of H are present in 27 cm3 of sodium borohydride (of density 1.074 g/cm3)?Answer in units of mol

Reference no: EM13139987

Questions Cloud

Define a series circuit has a dc voltage source : A series circuit has a DC voltage source (56 volts), a resistor, (72 ohms), a capacitor (82 farads), and a switch. The capacitor is initially uncharged and the switch closes at t=0.

List two tissues formed by neural crest cells : List two tissues formed by neural crest cells. What path would they take? Do they ever form non-ectodermal structures, if so, name one please.

Create frequency table and histogram shape of distribution : Following are speeds of 40 cars clocked by radar on a particular road in a 35-mph zone on a particular afternoon; Make (a) a frequency table, (b) a histogram, and (c) a frequency polygon. Then describe the general shape of the distribution.

Classify each of five situations as a fraudulent act : Based on the supervisor's instructions, quantities on the move tickets were not compared with those on the receiving report. Classify each of five situations as a fraudulent act, an indicator of fraud, or an event unrelated to the investigation. Ju..

How many moles of hydrogen are present : If 3.93 g of sodium borohydride contains 2.5 × 10^23 H atoms, how many moles of H are present in 27 cm3 of sodium borohydride (of density 1.074 g/cm3)?Answer in units of mol

Christian education assessment : A discussion of Best Practices in Sunday School ministry by Hemphill and Taylor. An analysis of strength and weakness, as it applies to a real life situation.

Unamortized discount on the bonds : Maas Enterprises has $2,190,000 of 6 percent bonds outstanding. There is $40,000 of unamortized discount remaining on the bonds after the March 1, 2011, semiannual interest payment.

Why might a person with an abnormally slow clotting : why might a person with an abnormally slow clotting time be given vitamin K? would treatment with vitamin K immediately improve the clotting time?

Understanding and perceptions of reality : Describe its understanding and perceptions of reality. Contrast it to the more linear time, space, and being concepts of modern cultural religions.

User Account

All Pages