Extrapolating from the answer to how may grains in a pound of rice, 29,000, (elsewhere in Answers.com) we get something like 64,000 grains in a kilogram (@ 2.2 lbs / kg). This could vary based on the kind of rice.
There are approximately 15,432 grains in one kilogram.
There are about 49 grains of rice in a gram.
According to freerice.com, if rice is a staple part of your diet, then you need 18,400 grains of rice.
There are approximately 70,000 grains of salt in one kilogram.
14,500 grains freerice.com
50 grains.
50
That depends on how big the bag is, as well as how full it is and how large each grain of rice is. However, most people don't spend all their time counting how many grains of rice are in each bag, so it will be hard to find out.
I assume we're discussing medium grain white rice in this scenario, wherein each grain weighs approximately 0.03 grams. Based on this assumption, a single kilogram of rice might include around 33,000 grains. Hence, scaling that up to 10 kilograms
1000 grains of rice equals 23 g of rice. So 4330 would be about equal to one serving which is 3.5 oz. So 618 grains are in 0.5 oz. So in a 12 oz bottle it would have about 14832 grains of rice. Remember, this is an estimate.
According to Producers Rice Mill, Inc. of Stuttgart, Arkansas, USA, there are over 29,000 grains of rice in one pound (based on long grain white rice). Brown rice (which is unhulled and has a larger diameter) should be somewhat less.