Tartaric acid - 18.75 mM
Sodium Tartrate Dihydrate - 6.25 mM
pH of this mixture should be near 2.9, adjust pH down to 2.5 using HCl, and QS to 1 L by water.
Dissolve enough sodium acetate(or other acetate) to reach .5 M(which is .5Mol/L) you use the molecular weight of the acetate and the mass of the acetate to figure out how much to add. Then once dissolved in the appropriate amount of water simply adjust the pH using a strong acid or base until the pH is 6.0.
Continents affect the climate by their size and by their effects on ocean circulations, but if you are worried that we will be affected in turn, don't be! The mean speed of continental drift is about 25mm/year so nothing for us to lose sleep over!
Well, they still are!Africa is very slowly catching up Southern Europe. They are both drifting roughly N to NE but Africa's mean velocity is a veryfew millimetres faster than that of Europe.Just to make it more fun. the NE of the African continent is rifting (splitting) away from the rest at observable rates.India is still compressing Southern Asia, pushing up the Himalaya range at a slightly faster rate than the mountains are being eroded.The Pacific Ocean is closing. I don't know its present width in km & velocities (i.e. speeds in given directions) in mm/year,but if you took a mean closing rate of an ocean of that width as 20mm/year and look up that width, then you can work out the approximate time from its width, asssuming constant speed! I'd recommend you use index-notation (N X 10x) to helpcope with the numbers involved*.The Atlantic is widening at about 20-25mm/yr - so again, if you find its width you can work out its rough age by range. Clue: the initial riftingstarted in the Tertiary.*[1millimetre = 1 X 10-3 metres therefore =1 x 10-6 kilometres)
Let's see.For one person, its about 6 gallons.So, 6 * 250,000,000 = 1.5 billiontheres a problem with your answer, the 250,00,000 population includes plenty of people who don't own cars. the actual number is closer to 800 million gallons per day. i got my number through the US using an estimated 360 million gallons (44% of global gasoline use) per day.18700000000
According to the USGS and NOAA, a 1km³ cumulus cloud would weigh about 2.21 billion pounds, or about 1,105 tons (US). The same volume of dry air weighs about 2.22 billion pounds, which is why clouds float. Because it is less dense than air, in truth, it doesn't "weigh" anything. It has volume. If you sucked all the water vapor out of the air and put it in a bucket, though, using the below chart as a guide and the fact that water is 1kg per liter, and one liter of water is 0.1 cubic meters, you'd have 12,900,000,000 liters of water, which is 12.9 trillion kg. (It's enough to cover the earth's 510,072,000 km² surface with about 25mm of water. Because the earth's average rain fall is about 1 meter, you can figure that all of this water vapor is recycled every nine or ten days.) So, to convert that metric to US tons and answer your question, all of that means that there is approximately more than 14.2 billion US tons of water vapor in the atmosphere. Water sourceWater volume, in cubic milesWater volume, in cubic kilometersPercent of total freshwaterPercent of total waterAtmosphere3,09412,9000.04%0.001%Total global fresh water8,404,00035,030,000100%2.5%Total global water332,500,0001,386,000,000--100%Source: Gleick, P. H., 1996: Water resources. In Encyclopedia of Climate and Weather, ed. by S. H. Schneider, Oxford University Press, New York, vol. 2, pp.817-823.
2.5*10-5 km in 25mm
Yes it is. 19cm=190mm. 25mm=2.5cm.
25mm is just a tiny bit over 1 inch!
25mm = 0.025 meters (you divide mm by 1,000 to convert to meters).
Divide by 1000 to change millimeters to meters; 25mm = 0.025m.
No. 10mm is equal to 1 centimeter. So 25mm would be 2.5cm
There is no 25mm handgun. That is the size of an automatic cannon that is mounted on an armored vehicle.
25mm * 8 = 200 mm = 200/1000 metres = 0.2 metres.
25mm - 4mm thick150mm -4mm thick50mm - 4mm thick
25mm
0.0025m
No. The inch measure is described as "nominal". It is likely to be 25mm * 25mm