5. A sample of saline contains 45 ml of saline in 128 ml of water. What is the percent by volume of the solution?

Q: Which plot below best represents the relationship between pressure (P) and volume (V) for an ideal…

A: Given,  The ideal gas equation: P V = n R T P→ Pressure  V→ volume n→ moles of gas R→gas constant…

Q: 95. Rank the following alkyl bromide from most reactive to least reactive in a solvolysis reaction…

A: : Solvolysis ∝ stability of carbocation

Q: Calculate the solubility at 25 °C of Ni(OH)2 in pure water and in a 0.0180M NaOH solution. You'll…

A: Answer:- This question is answered by using the simple concept of calculation solubility using the…

Q: Assume that the reaction below is at equilibrium. A stress is hen applied as described. Click on the…

A: Here forward reaction occurs with increase in no. Of moles of gas & backward reaction occurs…

Q: Raymond went to the grocery store with his mom. He started by pushing an empty grocery cart with 0…

A: At the starting of the shopping, the weight of the empty grocery cart is 0 kg. After shopping the…

Q: 4 If I initially have a gas with a pressure of 945 kPa and a temperature of 35.0°C °C, what will the…

A: Gay- Lussac's law: At constant volume for a given amount of gas pressure of a gas is directly…

Q: 4. A patient at a nearby hospital at sea level (1.00 atm) with a resting lung volume of 1.20L is…

A:

Q: 1.85kg - 127g adding and subtracting problems chemistry

A:

Q: Which subshells (s, p, d, f, or g) can have electrons with the indicated magnetic quantum number…

A:

Q: Convert 15 ns to ms

A:

Q: The officers of a high school senior class are planning to rent buses and vans for a class trip.…

A: Detailed explanation:Step 1: Understand the Problem There are two categories of vehicles to think…

Q: 6.0 qt to mL

A: Here, we have to do the conversion of quart (qt) to mL

Q: 1) 2.2 lb = ___kg 2) 16 fl oz = __pt 3) 1 tsp = __ml 4) 15 gr = __g 5) 1 oz = __m

A: The following conversions can be carried out as:

Q: convert 6.55 Mm to Gm

A: Meter, millimeter, gigameter, yard and miles are some common units of distance. These units can be…

Q: A gallon (3.78 L) of latex paint can cover 385 ft 2 of the surface of a wall. What is the average…

A:

Q: In an experiment, calcium carbonate reacted with different volumes of hydrochloric acid in water.…

A: Calcium carbonate reacts with hydrochloric acid to form the carbon dioxide gas.

Q: Chlorine OR Bromine OR Neither

A: Mass spectroscopy is an analytical technique used to measure mass to charge ratio of molecules…

Q: 2.5 cm3 to mL

A: Given volume: 2.5 cm3 We have to convert this volume to mL.

Q: The speed of light is 3 x 108 m/sec Assume: 1.6 km/mile 1.If the earth is close to Mars, we are…

A: Distance = speed x time  Distance travelled by electromagnetic radiation = speed of light…

Q: 9) The temperature of a sample of N2 at 4.9701 atm is changed, causing a change in volume from…

A: Given  Initial Pressure (P1)        = 4.9701 atm  Initial Temperature (T1) = 654.67 K  initial…

Q: Complete the following conversion. 55 cL = ? nL

A: We have to convert 55 cL to nL  "c" denotes "centi" which is 1/100th part or 10-2 part  Hence the…

Q: All of the structures is Figure 3-6 would have an IR spectrum with signals at (more than one answer…

A: Infrared spectrum is a plot of percentage transmittance versus stretching frequency. Interpretation…

Q: B. Standardization of KMnO4 Mass of Na2C₂O4 Weighing bottle initial mass Weighing bottle final mass…

A:

Q: 789mK/s to uK/ms.  Express your answer in three significant figures.

A: Given : value in mk/s = 789

Q: Complete the table below. kg 900 cL = = dm 7 Ms = = 6000 g OL 6 m S

A: Given,  a). 6000 g to kg  b). 900 cL to L  c). 6 m to dm  d). 7 Ms to s  Using the conversions as :…

Q: Classify each of the molecules in the table. molecule OH OH OH type of molecule (check all that…

A: Given are organic compounds.In all three compounds -COOH group is present.So they are carboxylic…

Q: Complete the table below. 20 dg =   g   cL = 2 L   Mm = 3000000 m 6000 ms =   s

A: Given that : We have to complete the table given below : 20 dg=  g cL=2 L Mm=3000000 m6000 ms=s…

Q: The Bay of Fundy in Nova Scotia, Canada is reported to have the largest tides in the world with high…

A:

Q: 4. A certain solid sample of mineral weighs 5.65 g and has a volume of 0.86 mL. What is the density…

A: Given, The mass of the sample is 5.65 gVolume of the sample is 0.86 mL.

Q: How long will it take for the reaction to be 85% complete if it takes 32.0 min for the concentration…

A: Initial concentration = 0.55 M concentration after 32 min = 0.42 M  Time = 32 min  Time when 85% of…

Q: A student's percent error for the density of gold was 14% under the accepted value of 19.3 g ml-¹.…

A:

Q: A particular MP3 encoder can convert 87.0 kilobytes (kB) of music per second from a typical music…

A:

Q: Length:3.55 cm Width:2.55 cm Mass:0.338 g   Volume of aluminum foil (cm3)

A: For given aluminum foil we have,  Length:3.55 cm Width:2.55 cm Mass:0.338 g  We know the formula…

Q: Classify each of the changes/characteristics from Experiment 6 (Chemicals in Everyday Life) as…

A:

Q: .Which is heavier? 1 (a)Group of answer choices 1.3 kg 1.3 lbs 1.3 g   (b)Which is shorter? Group…

A: The given questions are of units and measurements topic. We answer them as follows-

Q: 1. i) Fill in the boxes with the missing reagent(s). ii) Label each reaction as an "oxidation" or…

A:

Q: A car’s rate of fuel consumption is often measured in miles per gallon (mpg). Determine the…

A: Density is defined as the mass per unit volume. It is represented by rho . It’s relation with mass…

Q: 2A gas that has a volume of 98 liters, a temperature of 45 °C and an unknown pressure has its volume…

A:

Q: Gas is sold for $1.299 per liter in Toronto, Canada. Your car needs 10.00 gallons. How much will…

A: as unit conversion, 1 gallon = 3.785 L 10.00 gallons = 10.00×3.785 L = 37.85 L

Q: If the actual yield of the reaction was 75% instead of 100%, h was over?

A: This is a multiparts question. According to guidelines in multiparts question We can solve only the…

Q: 7. Calculate the amount of heat(in J) required to increase the temperature of a 22.6 g copper sample…

A: The amount of heat (q) required to increase the temperature (∆t) of a substance of mass m gram is…

Q: Treatment of 1.385 g of an unknown metal M with an excess of aqueous HCl evolved a gas that was…

A:

Q: 2. The following eight structures are all isomers of C6H14O. Each structure corresponds to one of…

A: 1 H NMR spectroscopy is useful to determine types of hydrogens, signals splitting etc hence we can…

Q: A cube of metal is 3.12 cm along edge.  The volume of this cube is [a] cm3  .

A: We can calculate the volume of the cube by doing height multiplied by width multiplied by depth.…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.