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Kiesha
Questions (13)
Which of the following has a product of 4?
A.-1 and 4 B.1 and -4 C.2 and -2 D.-2 and -2
2 answers
634 views
a certain radioactive isotope has a half life or 850 years.how many years would it take for a given amount of this isotope to
1 answer
718 views
What mass of KCl is dissolved in 250. mL of a solution that is 4.00 % by mass/volume?
2 answers
2,091 views
Please show me the steps.....
At STP, 3.00 L of nitrogen gas contains the same number of molecules as A) 1.00 L of nitrogen gas
3 answers
3,965 views
A balloon at contains 0.5 L of gas at a constant pressure of 1.0 atm. If the pressure is increased to 3.0 atm, what will be the
0 answers
545 views
A sample of oxygen gas has a volume of 8.00 L at 20.0 ° C and 700. torr. How many moles does the sample contain?
0 answers
492 views
A 120. mL sample of a gas is at a pressure of 1.50 atm. If the temperature remains constant, what will be its volume at 3.50 atm
3 answers
1,188 views
How would you prepare 150.0 mL of a 0.200 M aqueous solution of potassium chloride from a 0.500 M aqueous solution of potassium
1 answer
1,562 views
How many moles of hydrogen are consumed when 40.0 L of hydrogen chloride gas are produced in the following equation?
H2(g) +
1 answer
1,445 views
What is the volume of 1.40 moles of nitrogen gas at 20.0°C and 770. torr?
1 answer
885 views
A sample of oxygen is collected over water at 22°C and 762 torr. What is the partial pressure of the dry oxygen? The vapor
1 answer
3,354 views
IF Joseph deposits $1,000 at year-end for the next 35 years, assuming he makes one yearly deposit of $1,000 at 5% compounded
1 answer
472 views
26 x 1/5 divided by 1/2 x 5.
evaluate. I don't know if i'm supposed to find a common denominator and if i should use 10 as the
1 answer
570 views
Answers (3)
I attempted at the problem, is it 10.0g?
51.4mL
623/7 89%
