1. How many grams in 7.57 moles of Calcium Nitrate (Ca(NO3)2)?
grams (round to 3 sig figs)
2. How many moles are there in 56.7 grams of Carbon Tetrafluoride (CF4)?
moles (round to 3 sig figs)
3. Tums antiacids are made of calcium carbonate (CaCO3). Each Tums tablet contains 0.750 grams of Ca(CO3). If you eat 2 tums after a hefty Thanksgiving meal, how many moles of Calcium carbonate did you consume?
moles (round to 3 sig figs)
4. An oxygen canister contains 0.559 moles of Oxygen gas (O2). Calculate the mass of Oxygen in grams.
grams O2 (round to sig figs)
5. How many grams are present in 0.132 moles of Hydrocholric acid (HCl)?
grams (round to 3 sig figs)
6. If you have 98.078 grams of Sulfuric Acid, you have mole(s) of Sulfuric Acid (H2SO4).
moles (entire number
7. How many moles are present in 14.007 grams of Nitrogen gas (N2)?
moles (round to 3 sig figs)
8. How many grams would 2.43 moles of Ca(OH)2 weigh?
grams Ca(OH)2 (Round to 3 sig figs)
Answers: 1
Chemistry, 22.06.2019 13:00
What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.
Answers: 3
Chemistry, 22.06.2019 17:10
Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5ļ°c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/gādegree c). calculate the calorimeter constant. (smĪ“t)warm water = -[(smĪ“t)cold water + (calorimeterĪ“tcold water)]
Answers: 2
Chemistry, 23.06.2019 01:30
The biomedical technique in which a part of the brain is destroyed with electric current is known as a. electroconvulsive therapy b. prefrontal lobotomy c. bilateral cingulotomy d. tardive dyskinesia
Answers: 2
1. How many grams in 7.57 moles of Calcium Nitrate (Ca(NO3)2)?
grams (round to 3 sig figs)
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