Assume the total number of molecules in a sample of liquid is about 8 million trillion. 3 million trillion of these are molecules of some poison, while 5 million trillion or water molecules. What percentage of all the molecules in the glass are water?
Q: In region A, the average pH value of the rainfall is 4.4. Find the average concentration of hydrogen…
A:
Q: My Data: Pure Protein Whey Powder: 0.076 g/mL Class Data: Group 5: Whey Protein: 0.0463 g/mL Group…
A: Difference between Group 5 and pure whey protein is Difference between Group 6 and pure whey…
Q: You have a container of fixed volume (10 liters) and gas molecules (1 mole) at a pressure of 50…
A:
Q: what is the healthiest thing to drink
A: It has been known recently that one of the healthiest thing to drink is green tea.
Q: If I initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200…
A:
Q: The heat of a reaction, AH, may be calculated by: * 1 p A. AH =EAH -EAH, B. AH =AH Σ ΔΗ, reac tant…
A: "Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: How much heat is needed to melt 4 g of ice? Give your answer in joules.
A:
Q: How many macrostates are there for tossing 6 coins? Select the correct answer 06 O64 X Your Answer…
A: Fir tossing 6 coins , Following macro states will be there (H - head , T - tail ) 6H , 0T 5H ,…
Q: You are an astronaut exploring a new planet in a distant solar system. This planet has an…
A: Given data The atmospheric pressure on the planet is Patm = 3040 mm Hg. The content of the oxygen on…
Q: Space aliens visited you last night and left you with a "present". They left behind a liter of…
A: There are 2 types of changes in our environment. They are physical change and chemical change. In…
Q: A balloon is filled with a 15% salt/ 85% water solution. Explain what will happen to the balloon if…
A: For this we need to learn about hypotonic solution and it's affect on the inner concentration.
Q: built a raft out of 8 logs, each with a diameter of 30 centimeters, length of 2 meters, and mass of…
A: Given:- The number of the logs is N = 8. Each have a diameter d = 30 cm Length L = 2 meter The…
Q: In a compost pile, the biochemical conversion process from waste to compost is accompanied by heat…
A: Given: In this question, the given details are, In a compost pile, the biochemical conversion…
Q: Our molecular model of matter describes a fluid as consisting of lots of little particles (atoms or…
A: Part A: Viscosity is the fluid friction as described in fluid mechanics. It is defined as as a…
Q: Assume that air consists of 80% N₂ and 20% O₂ by mole. Under the STP conditions, what is the mass of…
A:
Q: How many moles of iron is in a 1kg sample of iron?
A: To determine No of moles in 1 kg sample of iron
Q: If the surface pressure is 7 hPa, and the temperature is 1°C, what is the surface density of the…
A: Given: The surface pressure is 7hPa that is equal to 700 pascals. The temperature of the surface is…
Q: A solution is prepared by dissolving 50 grams of salt in 250 centimeter cube of water. Find the…
A: The objective of the question is to find the density of a solution prepared by dissolving 50 grams…
Q: The equation for the decomposition rate of leaves can be written as moekt You start with 100g of…
A: The decomposition rate for leaves is given by the equation mt=moe-ktmt is the mass of leaves left…
Q: Given MgSO4 x 7H20 What is the balanced chemical equation showing the evolution of water from your…
A: Solution: Given Chemical Equation is as follows: MgSO4 x 7H20 which is called as Magnesium…
Q: How many molecules of carbon dioxide are there in 44g of carbon dioxide?
A: Number of molecules
Q: An adult inhales about 6.0××10−4−4 m3m3 of fresh air during a breath. Only 20%% of fresh air is…
A: Let P be the pressure in the lungs, V be the volume of the fresh air, n be the number of moles of…
Q: What are dielectics and what are their uses?
A: Dielectrics are a type of insulators used in electronic components
Q: An extra-strength aspirin contains0.500 gof aspirin. How many grains is this? (1grain=64.8mg) 7.72…
A:
Q: Most car oil is 5 W – 30. What does that mean?
A: Numbers preceding W describe the viscosity of the oil at low temperatures. The lower this number,…
Assume the total number of molecules in a sample of liquid is about 8 million trillion. 3 million trillion of these are molecules of some poison, while 5 million trillion or water molecules. What percentage of all the molecules in the glass are water?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- The recommended daily caloric intake is 2000 calories (8,400,000J). This is because this is the same value for how much the average body loses to heat and work in a typical day (your change in energy is zero because you take in the same amount of energy you lose). A) If you lose a total of 8,400,000J (Qout+W=total lost), but consume 1200 calories of food (5,000,000J), what would your change in energy be? B) Assuming your change in energy is negative (hint-it should be), where does your body get the extra energy to maintain it's temperature?how many grams are in 2.70 x 10^24 molecules of P^410g of K2SO4 is dissolved into 1000g of water. The freezing point of the solution is -.0.29 degrees C. What is the van't Hoff factor, i, for K2SO4
- The Ozone layer is a layer of the atmosphere that is heavy with Ozone. What effect would a decrease in the amount Ozone in this layer have on living things on the Earth?Which scenario is an example of a negative feedback loop? When body temperature increases, sweat is produced as a cooling agent to lower body temperature. When body temperature increases, sweat is produced as a cooling agent to lower body temperature. In some parts of the world, birth rates are far exceeding death rates, which has led to overpopulation. In some parts of the world, birth rates are far exceeding death rates, which has led to overpopulation. Ice reflects sunlight much better than water. A warmer atmosphere is turning ice to water, which is absorbing more of the Sun’s energy. Ice reflects sunlight much better than water. A warmer atmosphere is turning ice to water, which is absorbing more of the Sun’s energy. A warmer atmosphere is leading to warmer oceans. A warm ocean releases more carbon dioxide, which traps more heat in Earth’s atmosphere. A warmer atmosphere is leading to warmer oceans. A warm ocean releases more carbon dioxide, which traps…Is this sentence correct: “Even a tiny speck of table salt contains billions of salt atoms”? If not, how would you correct the sentence?
- A sample of vinaigrette salad dressing has a total mass of 188 g, a total volume of 196 cm³ , and consists only of oil (density = 0.879 g/cm³) and vinegar (density = 1.056 g/cm³). What is the volume of each component in this mixture? Assume that the volumes are additive. volume of oil: cm3 volume of vinegar: cm3At which temperature could water contain the most dissolved gas at a pressure of 101.3 kPa?QUESTION 7 (Start on a new page.) The airbags in motor vehicles contain the compound sodium azide (NaNs). When a car crashes into an object, the compound decomposes and the nitrogen inflates the airbag. The balanced equation for the reaction is as follows: NaN(s) → 2Na(s) + 3N2(g) In one such decomposition, 2,53 x 10° molecules of nitrogen are generated. Calculate the: 7.1 Number of moles of NaN(s) that decomposed 7.2 Volume of N2(g) produced Assume that the reaction occurs at standard pressure. QUESTION 8 (Start on a new page.) Aluminium sulphate is used as a coagulant in water purification. It reacts with sodium hydroxide to form aluminium hydroxide which drags the impurities as it settles. The balanced equation for the reaction is: Al2(SO4)3(aq) + 6NaOH(aq) → 2Al(OH)3(s) + 3Na2SO4(aq) A chemist at a water purification plant adds 700 g of Al2(SO4)3 to a sample of water. 8.1 Calculate the maximum mass of Al(OH)3 that can be produced from this mass of Al2(SO4)3. (4) E [7] (5) The…